Safety Net Academic Medical Center Research Articles

Characterizing long-acting injectable antiretroviral therapy eligibility and initiation at a safety net academic medical center in the southeastern United States.

Background: Long-acting injectable (LAI) cabotegravir/rilpivirine (CAB/RPV) extends dosing intervals from daily to every 8weeks. Equitable implementation requires anticipating and addressing barriers to use. We described LAI-CAB/RPV eligibility and initiation among persons with HIV (PWH) receiving care at a Southeastern US academic medical center. Methods: We included PWH ≥18years, in care 01/01/2020-12/31/2021, and participating in the UNC CFAR HIV Clinical Cohort. We characterized LAI-CAB/RPV eligibility, compared those with and without recent detectable viral load (VL), and described clinical outcomes on LAI-CAB/RPV. Results: Among 1672 PWH, 425 (25.4%) had LAI-CAB/RPV drug-resistance. Among 1238 LAI-eligible PWH, 8.9% had detectable VL. Median age was 53 (interquartile range 40, 61), 54.6% were non-Hispanic Black, and 73.6% male. Over one-third lived >50 miles from clinic, one-fifth were uninsured, and 7.4% reported hazardous alcohol use. Gaps in care (prior 12-month) were more common among PWH with detectable VL versus suppressed (23.1% vs 13.9%, p = 0.03). 6/47 initiated LAI-CAB/RPV had detectable VL prior to injection; >95% sustained suppression and those with detectable VL had a rapid decline in viremia. Conclusions: Three-quarters of PWH were eligible for LAI-CAB/RPV, but equitable implementation may require addressing challenges such as distance to care, inconsistent care engagement, and other comorbid conditions, particularly for PWH with viremia.

S1336 Investigating Primary Factors Contributing to Cirrhosis Readmissions at a Safety-Net Academic Medical Center in New Mexico

S1336 Investigating Primary Factors Contributing to Cirrhosis Readmissions at a Safety-Net Academic Medical Center in New Mexico

The Opportunity for Impactful Integration of Vascular and Podiatric Care.

The importance of collaboration between vascular and podiatric surgeons has been well-established. High-level partnerships are integral to the development of multidisciplinary programs and wound care centers, ultimately resulting in improved patient outcomes. This vascular-podiatric integration is not universal, however, and podiatric surgery may not be aligned within a vascular surgery division at many institutions. As one such institution, we reviewed our single-center experience in order to identify opportunities for the impactful integration of vascular-podiatric patient care. Institutional electronic medical records were retrospectively reviewed for all procedures performed by vascular surgeons at a high volume, safety-net academic medical center. Data were collected on all primary and additional procedures, current procedural terminology (CPT) codes, case type (elective, urgent, emergent), surgeon specialty, and date/time of the procedures performed. CPT codes were linked to the Centers for Medicare & Medicaid Services' Physician Fee Schedule to estimate the work relative value unit (wRVU) per procedure. From 2018 to 2022, vascular surgeons performed a total of 12,206 operations, of which 1102 (9.9%) involved podiatric procedures. The most common vascular-performed podiatry procedures performed were toe amputations (38.1%, n = 420), transmetatarsal foot amputations (20.1%, n = 222), and ankle/foot debridement (16.2%, n = 178). Foot/ankle-specific procedures were identified as the primary procedure in 726 (65.9%) cases and as the adjunct procedure in 376 (34.1%) cases. A substantial proportion of podiatric procedures occurred on an urgent (n = 278, 25.2%) or emergent (n = 28, 2.5%) basis. A total of 163 (14.8%) cases occurred after hours (either before 0600 or after 1800), and 133 (12.1%) cases were performed on a holiday or weekend. Procedure-specific revenue included 4243.39 wRVU for primary procedures and 2108.08 wRVU for additional procedures performed. We report our single-center experience in which vascular surgeons provide a significant proportion of podiatric procedures. Our study underscores the potential for integrating podiatric surgeons within a vascular surgical division and presents opportunities for collaboration and enhanced patient care.

Sociodemographic and Clinical Factors Associated With Radiation Treatment Nonadherence and Survival Among Rural and Nonrural Patients With Cancer

Cancer treatment nonadherence is associated with higher rates of cancer recurrence and decreased survival. Rural patients with cancer experience a 10% higher mortality rate compared with their nonrural counterparts; geographic differences in nonadherence may contribute to this increased mortality. The goal of this study was to assess for geographic disparities and determine sociodemographic and clinical factors associated with radiation therapy (RT) nonadherence and survival among rural and nonrural patients with cancer. We examined cancer registry, medical records, and billing claims data at a safety net academic medical center. Geographic residence was defined as rural versus nonrural by US Department of Agriculture 2013 Rural-Urban Continuum Codes. Other factors assessed were age, sex, race, marital status, insurance type, employment, area median household income, residential distance to cancer treatment center, clinical stage, cancer type, treatment modality, total radiation dose received, and radiation dose per fraction. We used Cox proportional hazards modeling to examine 7 ways of operationalizing nonadherence and selected the definition that resulted in the best model fit statistics and prediction of mortality. Overall survival rates were estimated with the Kaplan-Meier method. We then examined nonadherence as the main exposure along with additional covariates in least absolute shrinkage and selection operator penalized survival analyses and as the outcome in our multivariable generalized linear regression analyses predicting nonadherence. We considered 2-way interaction terms with the main exposure, geographic residence. We identified 3,077 patients with cancer who averaged 62 years old, were 59% female, 34% Black, and 14% rural. Twenty-two percent of patients missed at least 2 fractions and missed an average of 10% of their treatment plan. Rural patients experienced a higher mortality rate than nonrural patients (53% vs 42%, P < .0001). Survival was assessed through December 31, 2021, with a mean follow-up of 4.5 years. Proportion of missed fractions as the indicator of nonadherence provided the best model fit statistics and prediction of survival. Marital status, employment status, tumor, nodes, metastases stage, cancer type, and age at diagnosis significantly affected survival, in addition to a treatment delay by geographic residence interaction effect. Specifically, patients residing in rural areas who experienced a treatment delay were more than twice as likely to die as nonrural residents who also experienced a treatment delay, and nearly twice as likely to die as rural residents who did not experience a treatment delay. The 2-year survival rate was 76% for nonrural residents who did not experience a treatment delay versus 27% for rural residents who experienced a treatment delay. Patients who were widowed, had stage 4 cancer, or lung cancer were more likely to be nonadherent. Finally, patients residing in rural areas who experienced a treatment delay were more likely to subsequently be nonadherent. In a geographically and racially diverse population, RT nonadherence is a significant concern that affects survival, yet it is a modifiable risk factor. We demonstrated that rural residence was associated with both RT nonadherence and poorer overall survival. Rural patients with a treatment delay had the lowest overall survival, compared with both nonrural survivors and rural survivors without delay. Rural residents who are delayed in starting treatment are at heightened risk for poor outcomes and should receive targeted support to mitigate the observed disparities. Additional patient populations that may benefit from targeted treatment adherence support include widowed patients and those with stage 4 cancer or lung cancer.

Real-World Clinical Impact of Netarsudil 0.02% at an Urban Safety-Net Hospital.

Purpose: To analyze the efficacy, safety, and accessibility of netarsudil 0.02% in patients with glaucoma (suspect, open or closed) at a safety-net academic medical center, Boston Medical Center (BMC).Methods: Retrospective chart review of patients prescribed netarsudil 0.02% for uncontrolled glaucoma at BMC between December 2017 and September 2019. Outcome measures included change in intraocular pressure (IOP) from baseline and evaluation of adverse events (AEs).Results: One hundred thirty patients (60% severe stage) were analyzed. The IOP reduction from baseline was about 3 mmHg. Fifty-four patients (42%) experienced an AE (eg, conjunctival hyperemia). Thirty-eight patients (29%) started netarsudil 0.02% in lieu of laser or surgery. Ninety-nine patients (71%) required prior authorization for insurance coverage of netarsudil 0.02%. Ten patients (7%) were unable to obtain netarsudil 0.02% due to issues with insurance coverage.Conclusion: Netarsudil 0.02% yielded significant IOP reduction in our cohort, however, to a smaller degree compared with prior studies that bore equivocal IOP reduction regardless of baseline IOP. Conjunctival hyperemia was the most common AE. In a limited number of patients, netarsudil 0.02% was not covered by insurance.

394: A Comparison of Potent P2Y12 Inhibitor Use and Outcomes at a Safety Net Academic Medical Center

394: A Comparison of Potent P2Y12 Inhibitor Use and Outcomes at a Safety Net Academic Medical Center

Low persistence to rivaroxaban or warfarin among patients with new venous thromboembolism at a safety net academic medical center.

Recent guidelines recommend direct acting oral anticoagulants (DOAC) over vitamin-k antagonist (VKA) for acute venous thromboembolism (VTE). Non-adherence to anticoagulation has been associated with increased frequency of VTE or stroke. This study evaluated 90 day persistence among patients prescribed rivaroxaban or warfarin for the treatment of acute VTE at an academic safety net hospital. We conducted a single center, retrospective cohort study of 314 consecutive patients newly prescribed rivaroxaban or warfarin for acute VTE between January 2016 and July 2017. Primary outcome was 90 day persistence, and secondary outcomes included 90 day readmission and/or ED visit, time to 90 m day readmission and/or ED visits, and attendance of direct oral anticoagulant education class. Of 314 patients, 78 were prescribed warfarin and 236 rivaroxaban. Patients had a mean age of 52 years, 62% were men, and 96% were diagnosed with deep vein thrombosis and/or pulmonary embolism. Persistence at 90 days was 52.6% among patients prescribed warfarin compared to 45.3% for patients prescribed rivaroxaban (p = 0.2678). Persistencewas associated with decreased 90 day hospital or ED readmission. Among patients prescribed rivaroxaban, attending a pharmacist led educational class was associated with a 2.5 fold increase in persistence (p < 0.0001). Among patients with new onset venous thromboembolism, 90 day persistence with anticoagulation was similarly low with either rivaroxaban or warfarin therapy. Participation in a pharmacist led DOAC class was associated with a 2.5-fold increase in persistence on rivaroxaban.

Abstract P103: Atherosclerotic Cardiovascular Disease Risk Reduction in High Risk Populations: A Resident Driven Quality Improvement Initiative

Background: Current guidelines recommend statins for patients with clinical ASCVD and more specifically, to target LDL-C levels &lt;70mg/dL. However, recent studies suggest that overall statin usage in ASCVD patients is suboptimal (58%), with less than one-third of these individuals on a high-intensity dose. Our goal was to assess LDL-C levels amongst patients with known ASCVD within a large safety-net academic medical center, while identifying factors leading to suboptimal cholesterol control, to determine potential targeted interventions to improve patient outcomes and guideline compliance. Methods: We obtained data from the medical record data warehouse of a primary care outpatient medicine clinic that is predominantly staffed by internal medicine residents with attending physician guidance. Patients with a diagnosis of ASCVD who were evaluated from Jan-Dec 2016 were reviewed. Medical record abstraction was performed and bivariate analyses were conducted to identify potential factors affecting high-intensity statin prescriptions rates and resultant LDL-C levels. Results: Our patient population was predominantly African American (93%; 1015/1091). Statins were prescribed for 82% of these patients (897/1091), of which, only 69% (615/897) were on a high-intensity statin. However, LDL-C levels &lt;70 mg/dL were seen in only 41% and 34% of patients on a high-intensity vs non-high-intensity statin respectively. Younger age, female sex, lack of insurance, PHQ scores &gt;4 (indicative of mild depression or greater), and the presence of ≥4 comorbidities were all associated with a lower likelihood of being prescribed a high-intensity statin and/or having controlled LDL-C levels (p&lt;0.05 for all variables). Conclusion: LDL-C control appears suboptimal among ASCVD patients within our safety-net patient population. This may reflect the inherent complexity of our patient population, which is predominantly low income, uninsured, and African American. Our future goals are to develop resident driven interventions to properly monitor LDL-C levels, escalate guideline based therapies, and manage comorbid conditions such as depression, hypertension, and diabetes, to decrease ASCVD risk and improve guideline compliance.

Predictors of No-show Rate in the GI Endoscopy Suite at a Safety Net Academic Medical Center.

Noncompliance with physician and procedure appointments is associated with poor disease control and worse disease outcomes. This also impacts the quality of care, decreases efficiency, and affects revenue. Studies have shown that no-show rates are higher in clinics caring for underserved populations and may contribute to poorer health outcomes in this group. We performed a 17-month retrospective observational cohort study of patients scheduled for outpatient procedures in the Gastroenterology endoscopy suite at the University of Florida Health, Jacksonville. Multivariate logistic regression analysis was performed to evaluate associations between attendance and predictors of no-show. In total, 6157 patients were scheduled to undergo different GI procedures during the study period. A total of 4388 (71%) patients completed their procedure, whereas 2349 (29%) failed to attend their appointment and were considered "no-show". There was a significant relationship between the visit attendance and race, insurance, gender, and marital status. Males had a higher no-show rate compared with females (30% vs. 28%; P<0.05). African Americans had the highest no-show rate (32%; P<0.05) amongst different races. Patients scheduled for surveillance colonoscopy (ie, history of polyps, IBD, Colon cancer) were more likely to show (78%) than those obtaining initial colorectal cancer screening (74%) or other indications (71%) (P<0.05).In the logistic regression model, patients with commercial insurance are more likely to show for their appointments than those with noncommercial insurance (eg, Medicare, Medicaid, City contract etc) [odds ratio (OR), 2.6; 95% confidence interval (CI), 2.2-3.0]. The odds of showing up are 1.7 times higher for married men compared with single men (OR, 1.7; 95% CI, 1.3-2.0). Similarly, married females are more likely to show up for appointment than single females (OR, 1.1; 95% CI, 0.9-1.3). We did not find significant association between the type of GI procedure (eg, colonoscopy vs. esophagogastroduodenoscopy vs. advanced endoscopic procedures) (P>0.05). Predictors of no-shows for endoscopic gastrointestinal procedures included unpartnered or single patients, African American race and noncommercial insurance providers. Patients scheduled for surveillance colonoscopy had better adherence than initial screening. Further studies are required to better characterize these factors and improve adherence to the outpatient appointments based on the identified predictors.

Risk factors involved in treatment delays and differences in treatment type for patients with prostate cancer by risk category in an academic safety net hospital

ObjectivesUnderstanding the drivers of delays from diagnosis to treatment can elucidate how to reduce the time to treatment (TTT) in patients with prostate cancer. In addition, the available treatments depending on the stage of cancer can vary widely for many reasons. This study investigated the relationship of TTT and treatment choice with sociodemographic factors in patients with prostate cancer who underwent external beam radiation therapy (RT), radical prostatectomy (RP), androgen deprivation therapy (ADT), or active surveillance (AS) at a safety-net academic medical center. Methods and materialsA retrospective review was performed on 1088 patients who were diagnosed with nonmetastatic prostate cancer between January 2005 and December 2013. Demographic data as well as data on TTT, initial treatment choice, American Joint Committee on Cancer stage, and National Comprehensive Cancer Network risk categories were collected. Analyses of variance and multivariable logistic regression models were performed to analyze the relationship of these factors with treatment choice and TTT. ResultsAge, race, and marital status were significantly related to treatment choice. Patients who were nonwhite and older than 60 years were less likely to undergo RP. Black patients were 3.8 times more likely to undergo RT compared with white patients. The median TTT was 75 days. Longer time delays were significant in patients of older age, nonwhite race/ethnicity, non-English speakers, those with noncommercial insurance, and those with non-married status. The average TTT of high-risk patients was 25 days longer than that of low-risk patients. Patients who underwent RT had an average TTT that was 34 days longer than that of RP patients. ConclusionsThe treatment choice and TTT of patients with prostate cancer are affected by demographic factors such as age, race, marital status, and insurance, as well as clinical factors including stage and risk category of disease.

404 - Predictors of No-Show Rate in the GI Endoscopy Suite at a Safety Net Academic Medical Center

404 - Predictors of No-Show Rate in the GI Endoscopy Suite at a Safety Net Academic Medical Center

Abstract P3-10-09: Predictors of social support among newly diagnosed breast cancer patients seeking care at an urban safety net academic medical center

Abstract Background: Disparities in breast cancer care are a worsening problem, requiring effective interventions that seek to address the delivery of high quality cancer care. Evidence from interventions designed to improve timeliness of care routinely identify lack of social support as one of the biggest barriers to care. And, social support is associated with adherence to treatment and survival. This study explores predictors of social support in a diverse population of cancer patients. Patients and Methods: This is a secondary analysis of baseline preliminary data from participants enrolled in Project SUPPORT, a randomized controlled comparative effectiveness trial designed to evaluate the impact of patient navigation with or without legal support and services, among women diagnosed with Stages 0-4 breast cancer between 2014-2016. Upon enrollment (within one month of a cancer diagnosis) we administered the Medical Outcomes Survey (MOS) of social support to all participants. This validated survey tool addresses functional support, including an overall score (range 0-95) and 4 distinct domains: Emotional/Informational, Tangible, Affectionate and Positive Social Interaction. Using chi-squared and t-tests we compared MOS scores across socio-demographic variables: age, race, language, insurance, health literacy and marital status. Results: Of the 103 participants, mean age is 54.5 (SD = 10.6); 56% Hispanic, 19% Black, and 22% White and 2% identified as other; the majority had public insurance 76%; 66% speak English, 21% Spanish and 13% Haitian Creole. Only 36% have adequate health literacy as measured by the BRIEF. Only 32% are currently partnered. The overall mean total score for social support is 75.8 (+/- 23.6), median of 78.9 (range 60.5 – 98.7). Participants scored lowest in tangible support (mean score 67.7 +/- 33.1) and highest in affective support (83.5 +/- 25.8). Non-White participants scored significantly lower across all domains (mean overall MOS score 73.3 +/- 2.6) when compared with Whites (mean overall MOS score 84.5 +/- 4.8, p value = 0.04). There were no differences in MOS scores by language, insurance, literacy or marital status. Conclusion: This is the first study to describe social support scores (overall and specific domains) from the validated MOS survey tool among a racially diverse, urban cancer patient population. We found significant differences by race. Studies to identify risks for low social support can help inform future targeted interventions. Citation Format: Ko NY, Festa K, Gunn C, Bak S, Wang N, Nelson K, Flacks J, Morton S, Battaglia TA. Predictors of social support among newly diagnosed breast cancer patients seeking care at an urban safety net academic medical center [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P3-10-09.

Together We Learn: Analyzing the Interprofessional Internal Medicine Residents' and Master of Public Health Students' Quality Improvement Education Experience.

Although the value of interprofessional collaborative education has been promoted, it is unclear how teams of clinical and nonclinical learners perceive this experience. The authors studied an interprofessional quality improvement (QI) curriculum implemented in 2013 integrating internal medicine residents (n = 90) and Master of Public Health (MPH) students (n = 33) at an urban safety net academic medical center. Pre and post curriculum surveys assessed attitudes toward QI and interprofessional education and team performance. Resident attitudes toward learning and engaging in QI work improved at the end of the curriculum. Overall, MPH students demonstrated significantly more positive attitudes about interprofessional learning and work than residents. They also agreed more strongly than residents that patients would benefit if residents and public health students worked together. As health care organizations evolve to become more integrated, it is crucial that interprofessional educational opportunities be developed and evaluated to help encourage a culture of collaboration among health care providers.

Race/Ethnicity, Primary Language, and Income Are Not Demographic Drivers of Mortality in Breast Cancer Patients at a Diverse Safety Net Academic Medical Center.

Objective. To examine the impact of patient demographics on mortality in breast cancer patients receiving care at a safety net academic medical center. Patients and Methods. 1128 patients were diagnosed with breast cancer at our institution between August 2004 and October 2011. Patient demographics were determined as follows: race/ethnicity, primary language, insurance type, age at diagnosis, marital status, income (determined by zip code), and AJCC tumor stage. Multivariate logistic regression analysis was performed to identify factors related to mortality at the end of follow-up in March 2012. Results. There was no significant difference in mortality by race/ethnicity, primary language, insurance type, or income in the multivariate adjusted model. An increased mortality was observed in patients who were single (OR = 2.36, CI = 1.28–4.37, p = 0.006), age > 70 years (OR = 3.88, CI = 1.13–11.48, p = 0.014), and AJCC stage IV (OR = 171.81, CI = 59.99–492.06, p < 0.0001). Conclusions. In this retrospective study, breast cancer patients who were single, presented at a later stage, or were older had increased incidence of mortality. Unlike other large-scale studies, non-White race, non-English primary language, low income, or Medicaid insurance did not result in worse outcomes.

Patient Demographic Characteristics and Disease Stage as Drivers of Disparities in Mortality in Prostate Cancer Patients Who Receive Care at a Safety Net Academic Medical Center

IntroductionThe purpose of this study was to examine the effect of patient demographic characteristics and tumor stage at diagnosis on mortality in prostate cancer patients who receive care at a safety net, academic medical center with a diverse patient population. Patients and MethodsEight hundred sixty-nine patients were diagnosed with prostate cancer at our institution between August 2004 and October 2011. Patient demographic characteristics were determined as follows: race and/or ethnicity, primary language, insurance type, age at diagnosis, marital status, income (determined by zip code), and American Joint Committee on Cancer (AJCC) tumor stage. Fisher exact or Pearson χ2 test was used to test for differences in categorical variables. Multivariate logistic regression analysis was performed to identify factors related to mortality recorded at the end of follow-up in March of 2012. ResultsMortality was significantly decreased in patients who spoke Haitian Creole (odds ratio [OR], 0.18; 95% confidence interval [CI], 0.04-0.74; P = .017). Distribution of insurance type, age, income, and prostate-specific antigen level differed between English and Haitian Creole speakers. Increased mortality was observed in patients who were single (OR, 1.99; 95% CI, 1.06-3.73; P = .032), older than 70 (OR, 15.5; 95% CI, 3.03-79.45; P = .001), had Medicaid and/or free care (OR, 4.98; 95% CI, 1.72-14.4; P = .003), or had AJCC stage IV cancer (OR, 9.56; 95% CI, 4.89-18.69; P < .001). There was no significant difference in mortality according to race and/or ethnicity or income in the multivariate-adjusted model. ConclusionIn this retrospective study, prostate cancer patients who spoke Haitian Creole had a lower incidence of mortality compared with English speakers. Consistent with similar large-scale studies, being single or having Medicaid and/or free care insurance predicted worse outcomes, reinforcing their roles as drivers of disparities.