Text Reminders Research Articles

Embedding a text message recall system to increase the uptake of cardiovascular screening in Australian general practice. Results of the Text to Detect randomised controlled trial

Abstract Background Australian guidelines recommend cardiovascular disease (CVD) risk screening for adults aged 45-74 years, but less than one in three have blood pressure and cholesterol recorded within their general practitioner (GP) records. Medicare subsidised ‘Heart Health Checks’ were introduced in primary care in 2019, however uptake has been suboptimal. Purpose The aims of this study were to; 1) implement a text mediated Heart Health Check recall program within general practice at scale, 2) determine whether uptake can be increased with nudge reminder text messages and 3) evaluate the impact on risk factor measurement and medication prescription. Methods Australian general practices were invited via advertisement and mailing list. Medical record software identified patients eligible for a Heart Health Check. Practices were randomised to one of three arms: 1) standard SMS: 1 SMS inviting patients to see their GP for a Heart Health Check, 2) nudge reminder: standard SMS + nudge reminder two weeks later, 3) control: no SMS. Aggregate, deidentified, practice-level data was extracted at baseline and 3-months. The primary outcome was the proportion of Heart Health Checks delivered at a practice level. Secondary outcomes included updated CVD risk factor assessment and new medication prescriptions. Analyses used ANOVA and Tukey's HSD. Results Between 2022 and 2023, 206 general practices participated, each with 560 median eligible patients (IQR:297-909). A total of 70,679 recall text messages and 34,406 nudge reminder messages were sent. Heart Health Check uptake was 11 and 16 times higher in the standard and nudge arms (respectively) compared to control (0.4 vs 4.5 vs 6.3 per 100 patients, p<0.001), with a 40% statistically significant increase (p=0.02) for 2 SMS vs 1 SMS. Updated cholesterol values were 31.6 and 60.2% higher in standard and nudge arms (respectively) compared to control (13.7 vs 16.8 vs 17.4 per 100 patients, p=0.02). Both active arms were statistically significantly different from control (standard p=0.047, nudge p=<0.001). Updated blood pressure was 23.0 and 26.8% higher in the standard and nudge arms (respectively) compared to control (13.7 vs 16.8 vs 17.4 per 100 participants), however only the nudge arm was statistically significantly different (p=0.38). New medication prescription (lipid or blood pressure-lowering) was 36.8% higher in the nudge arm compared to control (32.1 vs 43.9 patients per practice, p=0.03). Conclusions This study demonstrates the effectiveness of text mediated recall of eligible patients to increase the uptake of cardiovascular risk screening in Australian general practice. The findings will inform the implementation of new Australian guidelines and policy reform.

Nutritional guidance through digital media for glycemic control of women with gestational diabetes mellitus: a randomized clinical trial.

To compare the effectiveness of outpatient nutritional guidance supplemented by digital media with exclusively standard outpatient nutritional guidance in pregnant women with gestational diabetes mellitus (GDM). This was a randomized, patient-blinded clinical trial conducted at the Diabetes and Pregnancy outpatient clinic from February 2021 to January 2023. Pregnant women with GDM were randomly allocated into two groups: the control group received exclusively outpatient nutritional guidance, and the Intervention Group received outpatient nutritional guidance along with reminders via WhatsApp. Dietary intake (calories, carbohydrates, lipids, proteins, and fibers) was evaluated using 24 h dietary recalls. Glycemic control and the need for pharmacological treatment were also assessed. A total of 81 women were included, 34 allocated to the control group, and 47 to the intervention group. Patients were followed for a period of 4-8weeks. Significant differences were observed in some points of glycemic control between the two groups over the follow-up period. There were no statistical differences in pharmacological therapy (p=0.498); 188 24 h dietary recall were conducted inthe control group and 290 in the intervention group. Astatistically significant increase in lipid intake was observed in the intervention group over the follow-up period compared to the control group (p<0.001). No changes in calorie intake, other macronutrients, or fiber consumption were noted. Glycemic control was significantly improved with the addition of frequent text reminders about dietary choices, and a significant increase in lipid intake was seen in all women, more so in the reminder group.

Can a behaviour change toothbrushing intervention prevent dental caries in 11-13-year-olds?

The Brushing RemInder 4 Good oral HealTh (BRIGHT) multi-centre randomized controlled trial was based in state-funded secondary schools in England, Wales and Scotland. It had two arms, aiming to assess the clinical and cost effectiveness of a 50 min education session and twice daily brush reminder text messages on toothbrushing and caries rates, compared to the normal education curriculum and no SMS. Outcomes were assessed at intervals over 2.5 years and were assessor-blinded. Pupils aged 11-13 were recruited from participating schools, and in each school randomised via year group to either the intervention or control group following baseline assessments by calibrated dental professionals. Exclusion criteria included not having a functioning mobile phone. The primary outcome, D4-6 MFT (Decayed, Missing and Filled Teeth), was analysed using mixed-effect logistic regression and sensitivity analyses were conducted. A cost-utility analysis was also undertaken. In total 42 schools, containing 84 year groups were randomised, and 4680 pupils were in the final sample. 663 pupils withdrew from follow up. At 6 months, there was evidence that intervention group pupils were more likely to report brushing at least twice per day However, by 2.5 years this effect was no longer evident. 2383 participants had a valid dental assessment at both baseline and 2.5 years, with 514 children in the intervention and 529 children in the control group presenting with obvious decay experience in at least one permanent tooth after 2.5 years. The intervention was estimated to have a 7% chance of being cost-effective. Over the 2.5-year follow-up, there were no significant differences in QALYs and costs between groups. The findings from the BRIGHT trial indicate no evidence of a statistically significant difference between the intervention and control groups for the prevalence of caries after 2.5-years. The behaviour change intervention did not translate into a reduction in caries rates.

Text messaging to improve retention in hypertension care in Bangladesh.

Visit non-attendance is a common barrier to hypertension control in low and middle-income countries (LMICs). We aimed to evaluate the effectiveness of mobile text messaging in improving visit attendance among patients with hypertension in primary healthcare facilities in Bangladesh. A randomized A/B testing study was conducted with two patient groups: (1) patients regularly attending visits (regular patients) and (2) patients overdue for their follow-up clinic visit (overdue patients). Regular patients were randomized into three groups: a cascade of three text reminders, a single text reminder, or no text reminder. Overdue patients were randomized into two groups: a single text reminder or no text reminder. 20,072 regular patients and 12,708 overdue patients were enrolled. Among regular patients, visit attendance was significantly higher in the cascade reminder group and the single reminder group compared to the no reminder group (78.2% and 76.6% vs. 74.8%, p < 0.001 and 0.027, respectively). Among overdue patients, the single reminder group had a 5.8% higher visit attendance compared to the no reminder group (26.5% vs. 20.7%, p < 0.001). The results remained consistent in multivariable analysis; adjusted prevalence ratio (PR) was 1.04 (95% CI 1.02-1.06) for the cascade reminder group and 1.02 (95% CI 1.00-1.05) for the single reminder group among regular patients. The adjusted PR for the single reminder group vs. the no reminder group among overdue patients was 1.23 (95% CI 1.15-1.33). Text message reminders are an effective strategy for improving retention of patients in hypertension treatment in LMICs, especially for patients overdue to care.

Community Collaboration to Advance Racial/Ethnic Equity in Colorectal Cancer Screening: Protocol for a Multilevel Intervention to Improve Screening and Follow-up in Community Health Centers

IntroductionColorectal cancer (CRC) screening utilization is low among low-income, uninsured, and minority populations that receive care in community health centers (CHCs). There is a need for evidence-based interventions to increase screening and follow-up care in these settings. MethodsA multilevel, multi-component pragmatic cluster randomized controlled trial is being conducted at 8 CHCs in two metropolitan areas (Boston and Los Angeles), with two arms: (1) Mailed FIT outreach with text reminders, and (2) Mailed FIT-DNA with patient support. We also include an additional CHC in Rapid City (South Dakota) that follows a parallel protocol for FIT-DNA but is not randomized due to lack of a comparison group. Eligible individuals in participating clinics are primary care patients ages 45–75, at average-risk for CRC, and overdue for CRC screening. Participants with abnormal screening results are offered navigation for follow-up colonoscopy and CRC risk assessment. ResultsThe primary outcome is the completion rate of CRC screening at 90 days. Secondary outcomes include the screening completion rate at 180 days and the rate of colonoscopy completion within 6 months among participants with an abnormal result. Additional goals are to enhance our understanding of facilitators and barriers to CRC risk assessment in CHC settings. ConclusionsThis study assesses the effectiveness of two multilevel interventions to increase screening participation and follow-up after abnormal screening in under-resourced clinical settings, informing future efforts to address CRC disparities. Trial RegistrationNCT05714644

Enhancing COVID-19 booster vaccination among the elderly through text message reminders

ABSTRACT The BOOST (Booster promotion for older outpatients using SMS text reminders) program at Taipei Veterans General Hospital assessed the effectiveness of text message reminders in enhancing COVID-19 booster vaccination rates among the elderly, guided by the Health Belief Model (HBM). Targeting patients aged 65 and above, eligible yet unvaccinated for a COVID-19 booster, this cohort study sent personalized reminders a week prior to their scheduled appointments between April 18, 2022, and May 12, 2022, acting as cues to action to enhance vaccination uptake by overcoming perceived barriers and raising awareness of benefits. Over 5 weeks, the study observed a 38% increase in vaccination rate among 3,500 eligible patients, markedly surpassing the concurrent national rate increase of 4% for the same demographic. The majority of vaccinations occurred within two weeks after the reminder, illustrating the effectiveness of the strategy. Cox regression analysis identified age and time since last vaccination as significant predictors of responsiveness, with those aged 65–74 and 75–84 showing higher uptake, particularly when reminders were sent within 4 months after the last dose. A single reminder proved to be effective. The findings of this study demonstrate the potential of SMS reminders to promote COVID-19 vaccination among the elderly through the strategic use of HBM principles, suggesting a feasible and effective approach to public health communication.

Mobile Phone-Based Confidential Social Network Referrals for HIV Testing (CONSORT): Protocol for a Randomized Controlled Trial.

Critical to efforts to end the HIV epidemic is the identification of persons living with HIV who have yet to be diagnosed and engaged in care. Expanded HIV testing outreach efforts need to be both efficient and ambitious, targeting the social networks of persons living with HIV and those at above-average risk of undiagnosed HIV infection. The ubiquity of mobile phones across many high HIV prevalence settings has created opportunities to leverage mobile health (mHealth) technologies to engage social networks for HIV testing outreach, prevention, and treatment. The purpose of this study is to evaluate the acceptability and efficacy of a novel mHealth intervention, "Confidential Social Network Referrals for HIV Testing (CONSORT)," to nudge at-risk individuals to test for HIV using SMS text messages. We will conduct the CONSORT study in Moshi, Tanzania, the commercial center and administrative capital of the Kilimanjaro Region in northern Tanzania. After qualitative formative work and pilot testing, we will enroll 400 clients presenting for HIV counseling and testing and 200 persons living with HIV and receiving care at HIV care and treatment centers as "inviters" into a randomized controlled trial. Eligible participants will be aged 18 years or older and live, work, or regularly receive care in Moshi. We will randomize inviters into 1 of 2 study arms. All inviters will be asked to complete a survey of their HIV testing and risk behaviors and to think of social network contacts who would benefit from HIV testing. They will then be asked to whom they would prefer to extend an HIV testing invitation in the form of a physical invitation card. Arm 1 participants will also be given the opportunity to extend CONSORT invitations in the form of automated confidential SMS text messages to any of their social network contacts or "invitees." Arm 2 participants will be offered physical invitation cards alone. The primary outcome will be counselor-documented uptake of HIV testing by invitees within 30 days of inviter enrollment. Secondary outcomes will include the acceptability of CONSORT among inviters, the number of new HIV diagnoses, and the HIV risk of invitees who present for testing. Enrollment in the randomized controlled trial is expected to start in September 2024. The findings will be disseminated to stakeholders and published in peer-reviewed journals. If CONSORT is acceptable and effective for increasing the uptake of HIV testing, given the minimal costs of SMS text reminders and the potential for exponential but targeted growth using chain referrals, it may shift current practices for HIV testing programs in the area. ClincalTrials.gov NCT05967208; https://clinicaltrials.gov/study/NCT05967208. PRR1-10.2196/55068.

When to Text? How the Timing of Text Message Contacts in Mixed-Mode Surveys Impacts Response

Abstract Using multiple modes of contact has been found to increase survey participation over a single contact mode. Text messaging has emerged as a new mode to contact survey participants in mixed-mode survey designs, especially for surveys that include web and/or phone data collection. However, it is unclear how to best combine text messages with mailings and other outreach contacts to improve response rates and data quality. To explore the effectiveness of using text messaging as a contact mode, we conducted a full factorial experiment that varies the sequencing of text messages with mailing contacts (early versus late reminder) and the time text messages were sent (morning versus afternoon). The experiment was implemented in a follow-up wave of a mixed-mode nationally representative longitudinal survey with two sample groups (Cooperative versus Other Respondents). For Cooperative Respondents, text reminders seemed to be effective at increasing completion rates, with the early text reminder being somewhat more effective than the late text reminder, at least early in the field period. For Other Respondents, text invitations were effective at improving the completion rate, but effects diminished quickly once the invitation letter was sent. Additionally, the early text reminder appears to be more effective than the late text reminder at increasing completion rates for Other Respondents. The sequencing of text messages did not affect data quality across sample groups or substantially impact nonresponse. The time of day the text messages were sent did not affect any of the outcome measures examined.

Study Recruitment, Retention, and Adherence Among Chinese American Immigrants During the COVID-19 Pandemic.

Chinese American immigrants have been underrepresented in health research partly due to challenges in recruitment. This study aims to describe recruitment and retention strategies and report adherence in a 7-day observational physical activity study of Chinese American immigrants with prior gestational diabetes during the COVID-19 pandemic. Foreign-born Chinese women aged 18-45 years, with a gestational diabetes index pregnancy of 0.5-5 years, who were not pregnant and had no current diabetes diagnosis were recruited. They wore an accelerometer for 7 consecutive days and completed an online survey. Multiple recruitment strategies were used: (a) culturally and linguistically tailored flyers, (b) social media platforms (e.g., WeChat [a popular Chinese platform] and Facebook), (c) near-peer recruitment and snowball sampling, and (d) a study website. Retention strategies included flexible scheduling and accommodation, rapid communications, and incentives. Adherence strategies included a paper diary and/or automated daily text reminders with a daily log for device wearing, daily email reminders for the online survey, close monitoring, and timely problem-solving. Participants were recruited from 17 states; 108 were enrolled from August 2020 to August 2021. There were 2,479 visits to the study webpage, 194 screening entries, and 149 inquiries about the study. Their mean age was 34.3 years, and the mean length of U.S. stay was 9.2 years. Despite community outreach, participants were mainly recruited from social media (e.g., WeChat). The majority were recruited via near-peer recruitment and snowball sampling. The retention rate was 96.3%; about 99% had valid actigraphy data, and 81.7% wore the device for 7 days. The majority of devices were successfully returned, and the majority completed the online survey on time. We demonstrated the feasibility of recruiting and retaining a geographically diverse sample of Chinese American immigrants with prior gestational diabetes during the COVID-19 pandemic. Recruiting Chinese immigrants via social media (e.g., WeChat) is a viable approach. Nonetheless, more inclusive recruitment strategies are needed to ensure broad representation from diverse socioeconomic groups of immigrants.

Implementing eHealth-based behaviour change support within a nutrition intervention trial improves adherence to study-related behaviours in healthy young adults

Nutrition intervention trials play a key role in informing clinical and dietary guidelines. Within these trials, we need participants to change their behaviours; however, researchers seldom systematically consider how to support participants with these changes, contributing to poor adherence. Here we evaluate how using a behaviour change framework to develop support within a dietary intervention impacts young adults’ adherence to required trial behaviours. In the Protein Diet Satisfaction (PREDITION) trial, 80 young adults were randomised to a flexitarian or vegetarian diet for 10-weeks to investigate the psychological and cardiometabolic effects of moderate lean red meat consumption as part of a balanced diet(1). To understand these outcomes, it was key that participants within the trial (i) ate a healthy, basal vegetarian diet (excluding meat, poultry, and fish not provided by research team) and (ii) reported their dietary intake daily on a smartphone application (required to evaluate intervention compliance). To enhance adherence to these behaviours the Nine Principles framework was used to develop behaviour change support (BCS)(2). Key components of the BCS included access to a dietitian-led Facebook group, text reminders, and food delivery. Effectiveness was measured using the following analyses of the 78 participants who completed the study: pre-post change in targeted dietary habits over time using a subscore of the Healthy Diet Habits Index, adherence score to reporting over 10-weeks, Facebook group engagement, and impact evaluation. Analysis included linear imputation modelling, t-tests, and chi-square analysis. The total Healthy Diet Habits Index subscore out of 16 significantly increased from baseline to week 10 (10.6 ± 2.6 to 11.2 ± 2.6, p = 0.011), demonstrating maintenance of a healthy diet. Overall adherence to reporting was high across the 10 weeks, with the total population mean reporting score 90.4 ± 14.6 out of a possible 100. This strengthens study validity, allowing us to confidently report if participants complied with study requirements of consuming the intervention protein (red meat or plant-based meat alternatives) on top of a basal vegetarian diet. Although relatively low active Facebook engagement was observed (on average &lt;1 ‘react’ per post), most participants agreed the text messages and Facebook groups supported them to adhere to recording (63%) and eating healthily (60%), respectively. This is the first study to provide an example of how a framework can be used to systematically develop, implement, and assess BCS within a nutrition trial. This appears to be a promising way to enhance adherence to study-related behaviours, including the burdensome task of reporting dietary intake. We believe this has great potential to improve research validity and decrease resource waste, not only for the PREDITION trial but in future dietary intervention trials.

Text vs Patient Portal Messaging to Improve Influenza Vaccination Coverage

Increasing influenza vaccination rates is a public health priority. One method recommended by the US Centers for Disease Control and Prevention and others is for health systems to send reminders nudging patients to be vaccinated. To evaluate and compare the effect of electronic health record (EHR)-based patient portal reminders vs text message reminders on influenza vaccination rates across a health system. This 3-arm randomized clinical trial was conducted from September 7, 2022, to April 30, 2023, among primary care patients within the University of California, Los Angeles (UCLA) health system. Arm 1 received standard of care. The health system sent monthly reminder messages to patients due for an influenza vaccine by portal (arm 2) or text (arm 3). Arm 2 had a 2 × 2 nested design, with fixed vs responsive monthly reminders and preappointment vs no preappointment reminders. Arm 3 had 1 × 2 design, with preappointment vs no preappointment reminders. Preappointment reminders for eligible patients were sent 24 and 48 hours before scheduled primary care visits. Fixed reminders (in October, November, and December) involved identical messages via portal or text. Responsive portal reminders involved a September message asking patients about their plans for vaccination, with a follow-up reminder if the response was affirmative but the patient was not yet vaccinated. The primary outcome was influenza vaccination by April 30, 2023, obtained from the UCLA EHR, including vaccination from pharmacies and other sources. A total of 262 085 patients (mean [SD] age, 45.1 [20.7] years; 237 404 [90.6%] adults; 24 681 [9.4%] children; 149 349 [57.0%] women) in 79 primary care practices were included (87 257 in arm 1, 87 478 in arm 2, and 87 350 in arm 3). At the entire primary care population level, none of the interventions improved influenza vaccination rates. All groups had rates of approximately 47%. There was no statistical or clinically significant improvement following portal vs text, preappointment reminders vs no preappointment reminders (portal and text reminders combined), or responsive vs fixed monthly portal reminders. At the population level, neither portal nor text reminders for influenza vaccination were effective. Given that vaccine hesitancy may be a major reason for the lack of impact of portal or text reminders, more intensive interventions by health systems are needed to raise influenza vaccination coverage levels. ClinicalTrials.gov Identifier: NCT05525494.

Implementing consultation audio recording applications to improve informed decision-making (IDM) in patients (pts) with metastatic castration-resistant prostate cancer (mCRPC) eligible for docetaxel.

103 Background: Pts with mCRPC have multiple treatment options and face challenges to IDM. This leads some to make poorly informed or goal-discordant decisions. Consultation audio recordings are known to improve IDM by improving recall, but uptake has been limited. It is unclear whether pt-administered apps are an effective, feasible strategy to increase access to recordings and improve IDM. Methods: We conducted a single-site implementation trial. Pts were English-speaking with progressive mCRPC and an upcoming oncology visit in which treatment options including docetaxel would be discussed. Pre-visit, a coordinator sent instructions, provided coaching, and sent text reminders to help pts create recordings using their mobile device. To evaluate change in IDM pre- vs post- the audio-recorded visit, we used an investigator-developed questionnaire testing pt knowledge about docetaxel (19 items, 0-100% correct) and the decisional conflict scale-informed subscale (3 items, 0=feels extremely uninformed to 100=feels extremely informed). Change was evaluated using the Wilcoxon signed-rank test. We also measured implementation: rates of consent, instruction receipt, recording, and listening, as well as pt-reported helpfulness of the app in decision-making. Lastly, we interviewed pts to understand benefits, barriers, and facilitators. Results: Of 78 pts approached, 44 (56%) consented, and 41 (53%) were evaluable. Top reasons for not consenting were too busy (7, 21%), illness (5, 15%), and inadequate devices (4, 12%). Mean age was 75y [56-90], and 34 (83%) were White. Median knowledge about docetaxel increased from 47 to 53 (P=0.048), corresponding to one additional correct response. Median informed subscore increased from 50 to 75 (P=0.011), corresponding to an improvement from feeling neither informed nor uninformed to feeling informed. All pts received instructions, 38 (93%) recorded their visits, and 28 (68%) listened to the recording. Twenty-six pts (63%) found the app helpful in decision-making. In pt interviews, benefits of recording were better recall of treatment options and toxicities, greater decision confidence, and peace of mind. Most frequently reported barriers to use were technology unfamiliarity and disconnected pt portal, telehealth, and recording applications; facilitators were app simplicity and caregiver/coordinator assistance. Conclusions: Implementation of self-administered mobilerecordings was feasible and associated with increased pt knowledge and feeling more informed about treatment with docetaxel in pts with mCRPC. Future efforts should focus on non-White, no/limited-English-speaking populations, and increasing recording/listening rates by addressing barriers and augmenting facilitators (e.g., integrating recordings in electronic pt portals). Clinical trial information: NCT05127850 .

Colon cancer screening disparities among limited English proficient patients during implementation of patient navigation services.

17 Background: Age-appropriate colon cancer screening has long demonstrated effectiveness in reducing colon cancer incidence and mortality. However, despite a gradual rise in compliance with colon cancer screening, significant disparities remain, particularly among patients with limited English proficiency (LEP). Multitarget stool DNA (MT-sDNA) testing (Exact Sciences, Madison, WI) has been available over the past decade in the United States as a lower-cost and non-invasive option for screening. In 2019, Exact Sciences began to offer patient navigation services comprising outbound phone, text, and e-mail reminders, and inbound phone support (&gt;200 languages) with all MT-sDNA orders. In this study, we aimed to evaluate the disparity in successful MT-sDNA testing between LEP and EP patients in a time frame when patient navigation services were active. Methods: We performed a retrospective cohort study of patients 45-75 years old enrolled in the primary care setting of our institution who received an order for MT-sDNA screening during a period in which patient navigation services began to be offered. A multi-state Cox model was constructed with time to MT-sDNA or other CRC screening predicted by English proficiency accounting for age and gender. Wald tests were used to test the association of CRC screening completion and English proficiency. Rates of completion of MT-sDNA screening and other CRC screening following MT-sDNA test ordering were calculated using the Kaplan-Meier method. Results: Of the 5016 patients evaluated and referred for multitarget stool DNA testing from May 1st, 2021, and May 1st, 2022, 154 patients were of LEP, and 4862 were English proficient (EP). At 180 days following a MT-sDNA test order the rate of completion for the LEP patients was 50.2% (95% CI: 42.8-58.7%) versus 70.3% (95% 69.1-71.6%) for EP individuals (p=0.001). A small portion of individuals also completed another type of CRC screen, 3.3% for LEP and 2.5% for EP (p=0.99). Conclusions: This study is consistent with the existing research demonstrating LEP as a significant demographic group linked with decreased participation in cancer screening. Our findings indicated that despite the availability of patient navigation services, individuals with LEP were still less likely to complete an MT-sDNA test successfully when compared to those with EP. [Table: see text]

Impact of text reminders on pneumatic compression device (PCD) compliance in patients with breast cancer-related lymphedema

PurposeDo cell phone text reminders impact the rate of compliance with pneumatic compression device (PCD) therapy among women with breast cancer-related lymphedema (BCRL)?MethodsA prospective, randomized, 2-group feasibility study conducted at 2 centers. Participants were adult females (≥18 years old) with unilateral BCRL who had the capability of receiving reminder text messages. All participants underwent PCD therapy. Participants were randomized 1:1 to control (no text messages) or test group (received text message reminders if the PCD had not been used for 2 consecutive days). The rate of compliance between treatment groups was the main outcome measure. Secondary outcome measures were changes in arm girth, quality of life (QOL), and symptom severity.ResultsTwenty-nine participants were enrolled and randomized, 25 were available for follow-up at 60 days (14 test, 11 control). Overall, 52.2% (12/23) of all participants were completely compliant, an additional 43.5% (10/23) were partially compliant, and 1 patient (4.3%) was noncompliant. The test and control groups did not differ in device compliance. In the pooled population, weight, BMI, and arm girth were improved. Overall disease-specific QOL and symptom severity were improved. Regression analysis showed benefits were greater among participants with higher rates of compliance.ConclusionsAutomated text reminders did not improve compliance in patients with BCRL as compliance rates were already high in this patient population. Improvements in weight, BMI, arm girth, disease-specific quality of life, and symptom severity measures were observed regardless of the treatment assignment. Full compliance resulted in greater functional and QOL benefits.Trial registrationThe study was registered at www.clinicaltrials.gov (NCT04432727) on June 16, 2020.

Abstract C122: Patient perspectives on factors influencing repeat colorectal cancer screening in a Federally Qualified Health Center

Abstract Background. The life-saving benefits of colorectal cancer (CRC) screening can be maximized only if screening is completed at recommended intervals. The fecal immunochemical test (FIT), an inexpensive stool-based test recommended yearly, is the primary screening modality in many Federally Qualified Health Centers (FQHCs) and remains underutilized. To inform system interventions, we sought to identify patient perspectives on factors that influence the likelihood of repeated FIT screening over time in a large FQHC. Methods. Between September 2022 and March 2023, we conducted semi-structured interviews with patients who were due for FIT screening and completed at least one prior FIT test at a large FQHC that serves a primarily Latino population in Los Angeles County. Our interview guide explored patients’ perceived barriers and facilitators to repeat FIT over time and experiences with FIT clinic processes of care. Audio-recorded interviews were conducted in patients’ preferred language (English or Spanish), transcribed, and translated. Transcripts were coded using ATLAS.ti, and themes were summarized. Results. Among 17 interview participants, the majority were female (82%), Latino (94%), and Spanish-speaking (88%). The median age was 57 years (range 52-70), and 41% had an 8th grade education or less. Interviews revealed that patient, family, and provider/system factors influenced receipt of sequential rounds of annual FIT CRC screening. At the patient level, perceived importance of disease prevention and early detection on the part of patients facilitated proactive engagement in regular screening. Additionally, many patients thought the process of FIT completion and return was easy, although some patients did express low confidence in stool sample collection and time and work constraints impeding in-person FIT return. Another recurrent theme was motivation from family, both direct support (assistance with FIT completion and transportation to clinic) and indirect motivation (an intrinsic desire to stay healthy for family). At the provider/system level, language discordance hindered communication with providers, and in-language FIT instructions and availability of bilingual staff to translate were identified as facilitators. Patient suggestions to improve FIT completion included client text and letter reminders when due for CRC screening; print education that underscores the purpose of screening; and appointment consolidation for cancer and other preventive care screenings. Conclusion. Interventions to improve regular FIT-based CRC screening may benefit from emphasizing the importance of early detection; improving patient knowledge and confidence in how to perform stool sample collection; family support; and language-concordant staff and resources for multi-lingual and medically underserved populations. Citation Format: Narissa J. Nonzee, Beth A. Glenn, Debra Rosen, Genesis Sandoval, Diana Trujillo, Folasade P. May, Alison K. Herrmann, Christine Park, Alicia Lwin, Joanna Quintanilla, Jessica Tuan, Lauren Cai, Roshan Bastani. Patient perspectives on factors influencing repeat colorectal cancer screening in a Federally Qualified Health Center [abstract]. In: Proceedings of the 16th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2023 Sep 29-Oct 2;Orlando, FL. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2023;32(12 Suppl):Abstract nr C122.

Abstract A006: A randomized controlled trial of a mobile symptom monitoring app and tailored messages: Differences in outcomes among Black and White women with breast cancer on adjuvant endocrine therapy

Abstract Black women with early-stage, hormone receptor-positive breast cancer have lower adjuvant endocrine therapy (AET) adherence and higher symptom burden than White women. We compared the effects of a symptom monitoring app and tailored messages on treatment-relevant outcomes among Black and White women with breast cancer starting AET. Patients prescribed AET for early-stage breast cancer at a cancer center from November 2018 until June 2021 were randomized into: (1) an “App” group that received instructions and access to the study app and weekly text reminders to use it (n=94); (2) an “App+Feedback (AF)” group that received additional weekly tailored messages about managing symptoms, adherence, and communication (n=100); or (3) a “Usual Care (UC)” group without app access (n=102). The intervention lasted 6-months, and participants completed surveys at enrollment and 12-months. Increasing/severe symptoms and missed doses triggered alerts that prompted follow-ups from the oncology team. Outcomes included AET adherence, captured with an electronically monitored pillbox, app use, alerts, symptom burden (FACT-ES), quality of life (SF-12), self-efficacy for managing symptoms (PROMIS 1.0), and healthcare utilization (6-month count of emergency department visits/urgent care/hospitalizations, and office visits). Analyses stratified by self-reported race. Overall, 102 (34%) Black and 194 (66%) White women were randomized. Retention at 12-months was 88%. Median age was higher among White participants (60 vs. 55 years, p&amp;lt;0.01). Number of weeks with app use was higher among White intervention participants (15.5 vs. 11.8, p&amp;lt;0.01), but resulted in fewer alerts (2.7 vs. 8.1, p&amp;lt;0.01) compared with Black participants. AET adherence over 12-months was lower among Black women (69% vs 76%, p=0.06), and such difference was similar across study arms. Black AF participants had fewer higher cost healthcare encounters compared to UC (0.27 vs. 0.97, p=0.03) but not for App only vs. UC. Black App participants had more office visits 6 to 12-months post enrollment compared to UC (4.4. vs. 2.6, p=0.04). White App participants reported 4.3 points higher physical health scores compared to UC (51.7 vs. 47.4, p=0.04). There were no significant differences by study arm in AET adherence, mental health score, symptom burden, or self-efficacy for managing symptoms among White or Black participants. Although Black intervention participants used the symptom monitoring app less often, they were more likely to report severe symptoms that triggered an alert to their oncology team than White participants. Among Black participants, the app combined with tailored messages resulted in fewer higher cost healthcare encounters, while App only resulted in more frequent office visits compared to UC. White participants did not have any differences in healthcare utilization, but App only participants reported higher physical health compared with UC. Symptom monitoring apps with tailored text messages improved different outcomes among Black and White patients with breast cancer on AET. Citation Format: Ilana Graetz, Xin Hu, Rebecca A. Krukowski, Mehmet Kocak, Janeane N. Anderson, Teresa M. Waters, Andrea N. Curry, Andrew Robles, Andrew Paladino, Edward Stepanski, Gregory A. Vidal, Lee S. Schwartzberg. A randomized controlled trial of a mobile symptom monitoring app and tailored messages: Differences in outcomes among Black and White women with breast cancer on adjuvant endocrine therapy [abstract]. In: Proceedings of the 16th AACR Conference on the Science of Cancer Health Disparities in Racial/Ethnic Minorities and the Medically Underserved; 2023 Sep 29-Oct 2;Orlando, FL. Philadelphia (PA): AACR; Cancer Epidemiol Biomarkers Prev 2023;32(12 Suppl):Abstract nr A006.

Habit Efficacy Trial: A Multi-Site Randomized Controlled Trial of Community Health Worker Support to Increase Hydroxyurea Adherence of Youth with Sickle Cell Disease

Introduction: Despite disease-modifying effects of hydroxyurea (HU) on sickle cell disease (SCD), poor adherence among affected youth commonly impedes treatment impact. The HABIT multi-site randomized controlled efficacy trial aimed to increase HU adherence. Methods: Youth with SCD ages 10-18 years with impaired adherence were identified through laboratory evidence, primarily flagging levels of treatment-induced fetal hemoglobin (HbF). Eligible youth were enrolled as dyads with their primary caregivers for one year. We tested a 6-month phase of semi-structured supportive, multi-dimensional dyad intervention led by community health workers (CHW) with 4-5 visits addressing information, social issues/referrals, barriers, habit formation using goal-setting and cues, augmented by daily tailored automated text message reminders, compared to standard care. This phase was followed by a 6-month sustainability phase (months 7-12) of observation and, for the intervention group, 1 CHW booster visit. Primary intervention outcomes were 1) HbF levels compared to enrollment; and 2) proportion of days covered (PDC) for HU versus the pre-trial year. The secondary outcome was sustainability of these changes up to month 12. Results: Starting in 2020, the COVID-19 pandemic disrupted enrollment and clinic-based procedures. The trial enrolled 50 dyads, missing target enrollment. Compared to enrollment levels, both HbF level and PDC significantly improved within the intervention group at month 6 (p=. 03 and . 01, respectfully), with parallel increased MCV (p=.05). Increased HbF did not reach signifance compared to controls (p=.07). No significant within- or between-group differences were found at month 12. Conclusions: Within-group results suggest that our CHW-based dyad intervention with text message reminders improved HU adherence at 6 months but there were no between-group differences. Effects did not endure through the subsequent 6-month sustainability phase. These findings suggest that improved HU adherence for youth with SCD though our community-based, multi-modal support for youth-caregiver dyads temporarily improved usage. Durability of impact on adherence may require integrating CHW-led support and text reminders into clinical care.

Implementing multicomponent, eHealth-based behaviour change support within a dietary intervention trial improves adherence to study-related behaviours in healthy young adults

BackgroundBehaviour change science is proposed to improve participant retention and enhance the validity of trials. However, researchers seldom systematically consider and implement behaviour change strategies within trials for this purpose. The objective of this article is to evaluate how an eHealth behaviour change support (BCS) program enhances young adults’ adherence to behaviours required within a dietary intervention.MethodsThe Nine Principles framework was used to develop BCS to implement across both arms of a 10-week randomised parallel-group intervention to enhance adherence to (i) eating healthily and (ii) reporting dietary intake. Key components of the BCS included access to a dietitian-led Facebook group, text reminders, and food delivery. Effectiveness was measured using the following analyses of the 78 participants who completed the study; pre-post change in targeted dietary habits over time using a subscore of the Healthy Diet Habits Index, questionnaire to assess change in perception of barriers to eating healthily over time, Facebook group engagement, and impact evaluation of the BCS. Participants received a dietary reporting score out of 100 to assess adherence across the 10 weeks.ResultsThe total Healthy Diet Habits Index subscore out of 16 significantly increased from baseline to week 10 (10.6 ± 2.6 to 11.2 ± 2.6, p value < 0.05), driven primarily by an increase in vegetable consumption. Overall adherence to reporting was high across the 10 weeks, with the total population mean reporting score 90.4 ± 14.6 out of 100. Relatively low Facebook engagement was observed. Adding objects to the environment, prompts/cues and removing reward appeared to be effective components of the BCS for enhancing adherence to the target behaviours.ConclusionUsing a behaviour change framework to support the design of randomised trials is a promising way to enhance participant adherence to study requirements that are typically considered burdensome, such as dietary reporting. It also enables researchers to identify and replicate effective components of BCS, including behaviour change techniques and modes of delivery. Further research into the use of different behaviour change frameworks for this purpose is warranted.Trial registrationClinicalTrials.gov Identifier: NCT04869163; https://clinicaltrials.gov/ct2/show/NCT04869163. (03/05/2021).

Transplant recipient, care partner, and clinician perceptions of medication adherence monitoring technology: A mixed methods study

Medication nonadherence is a leading cause of graft loss. Adherence monitoring technologies—reminder texts, smart bottles, video-observed ingestion, and digestion-activated signaling pills—may support adherence. However, patient, care partner, and clinician perceptions of these tools are not well studied. We conducted qualitative individual semistructured interviews and focus groups among 97 participants at a single center: kidney and liver transplant recipients 2 weeks to 18 months posttransplant, their care partners, and transplant clinicians. We assessed adherence practices, reactions to monitoring technologies, and opportunities for care integration. One-size-fits-all approaches were deemed infeasible. Interviewees considered text messages the most acceptable approach; live video checks were the least acceptable and raised the most concerns for inconvenience and invasiveness. Digestion-activated signaling technology produced both excitement and apprehension. Patients and care partners generally aligned in perceptions of adherence monitoring integration into clinical care. Key themes were importance of routine, ease of use, leveraging technology for actionable medication changes, and aversion to surveillance. Transplant clinicians similarly considered text messages most acceptable and video checks least acceptable. Clinicians reported that early posttransplant use and real-time adherence tracking with patient feedback may facilitate successful implementation. The study provides initial insights that may inform future adherence technology implementation.

Randomized Trial of a Social Support Intervention to Improve Home Blood Pressure Monitoring in Patients With Cerebrovascular Disease.

A pilot randomized trial evaluating whether a social support intervention improves adherence to home blood pressure (BP) monitoring among patients with cerebrovascular disease. Subjects with ischemic stroke, intracerebral hemorrhage, or transient ischemic attack within 5 years with BP >140/90, were given a centrally monitored home BP cuff and asked to check their BP twice a day for 90 ± 7 days. Subjects received text and/or email reminders for missed measurements and weekly reports on adherence/BP control. Subjects were randomized 1:1 to a social support intervention, in which close personal contact also received all study-related education and communications. The primary outcome was the proportion of requested measurements completed. A secondary outcome was a change in BP over time. Thirty-three subjects were enrolled, 15 in the control arm and 18 in the social support arm. The social support arm completed a greater proportion of BP measurements at day 30 (88% vs 78%), day 60 (72% vs 54%), and day 83 (60% vs 40%), but none of these differences were statistically significant (P > 0.05). Comparing the first 7 days of BP readings to the last 7 days across subjects, there was a nonsignificant decrease in BP over time (systolic BP = -2.8 mm Hg, P = 0.29 and diastolic BP = -1.7, P = 0.36). The social support intervention did not modify the change in BP over time. A social support intervention may increase adherence to home BP monitoring. This pilot study provides important preliminary data to inform the design of larger more definitive trials utilizing self-monitoring of BP in patients with cerebrovascular disease.