Practice-based Research Network Research Articles

What gets measured gets managed: A scoping review of musculoskeletal research conducted within practice-based research networks.

Musculoskeletal (MSK) conditions are often managed in primary care settings. To facilitate research and health care quality, practice-based research networks (PBRNs) offer sustained collaborations between clinicians and researchers. A scoping review was conducted to describe characteristics of PBRNs used for MSK research and MSK research conducted through PBRNs. PBRNs were identified from 1) MSK-studies identified In OVID Medline, CINAHL, and Embase databases from inception to 05 February 2023 and in ClinicalTrials.gov; and 2) from PBRN registries and websites. Among active MSK-focused PBRNs (i.e., currently recruiting and conducting research), an assessment of PBRN research good practices was performed. After screening 3025 records, 85 studies from 46 unique PBRNs met our eligibility criteria. Common conditions studied were low back pain (28%), MSK conditions not otherwise specified (25%), and osteoarthritis (19%). 32 PBRNs (70%) were deemed to be active. Among active MSK-focused PBRNs, best practice data management information was retrievable for most (53%). Due to the scarcity of publicly available information, a large proportion of PBRN research good practice items was not assessable. PBRNs have provided an avenue to assess clinical practice and patient outcomes related to MSK conditions. Further work to increase the transparency of MSK PBRN research practices is warranted.

How primary care research can be improved in clinical practice? An Italian case study.

Primary care is considered essential for the sustainability of the Health System. Practice-Based Research Networks (PBRN) play a strategic role in translation of primary care research into practice. Research Capacity Building in primary care requires a improvement and development strategy and well-developed research infrastructures to support physicians. We used the system development methodology referring to the Lean Thinking to create and support a research team in primary and pediatric care. In particular a "cascade" deployment model and the X-Matrix, a framework used in management studies to support strategy definition and management process. A research unit in primary and pediatric care has been created, by sharing vision, mission, core values, long-term strategies. The definition of a annual planning led to monitoring actions to guarantee the expected goals. Lean methodology is useful to adapt to various managerial and operational contexts, including healthcare. In our case it allowed team members to spread the culture of research, its importance and role to improve the health of patients, thank to the organizational support of a hospital IR, the Research and Innovation Department.

Perceptions of mental health screening and referral to treatment in National Dental-Practice Based Research Network practices: A qualitative study.

Dental practices can have additional positive impacts on public health by implementing mental health screening and referral to treatment in dental care workflows. In this study, we examined how dental practices identify and address adult patient mental health concerns, attitudes about implementing mental health screening and referral, and potential barriers and facilitators to treatment. We conducted semi-structured focus groups with 17 dentists, 10 dental hygienists, and 5 dental assistants/office staff in the South-Central region of the National Dental Practice-Based Research Network. Transcribed interviews were analyzed using thematic analysis. We identified five main themes from dental practitioners and office staff responses. Practitioners and office staff: (1) discover patient mental health concerns through record review, patient/caregiver disclosure, and patient observation; (2) respond to patients' mental health concerns by making the patient more comfortable, documenting the concern in the patient's chart, and directly addressing the mental health concern; (3) want a systematic process for mental health screening and referral to treatment in their dental office; (4) recognize potential barriers in implementing health screening and referral to treatment processes; (5) desire training on mental health matters. An overarching theme emerged: developing a trusting relationship with patients. Participants noted the importance of implementing systematic procedures for mental health screening and referral to services into dental practices, while also recognizing the potential barriers for integrating such processes. They also expressed a desire for quality training and resources that can support better care for patients with mental health concerns.

Opioid Use Disorder Treatment Prescribers’ Views of Implementing an Electronic System to Collect Patient-Reported Outcomes Measures

Use of patient-reported outcomes measures (PROMs) may improve addiction treatment outcomes. This qualitative study investigated barriers and facilitators for PROMs implementation among prescribers of medications for opioid use disorder (MOUD) participating in AMNet, an addiction medicine practice-based research network. Semi-structured interviews were conducted with seven qualitative research participants of 57 AMNet providers. Interview data were analyzed thematically and coded using ATLAS.ti. Barriers included lack of electronic health record (EHR) integration; user interface issues; insufficient administrative support; challenges with patient engagement; and lack of fit with clinical practice. Facilitators included perceptions that PROMs use would improve outcomes and increase accountability while advancing addiction medicine. Patient-reported outcomes measures implementation is feasible in small outpatient MOUD practices, although resource constraints and technological barriers may reduce potential reach.

How do Australian osteopaths manage migraines? Outcomes from a national practice-based research network

BackgroundIndividuals who experience migraines often seek out a variety of treatment options including manual or physical therapy. Evidence suggests that manual therapy, including osteopathy, can play a role in the management of migraines. Whilst there is some literature on the role osteopathy therapy plays in migraine management, none describes the treatment approaches used by practitioners. ObjectivesTo explore the demographic, practice and clinical management characteristics of Australian osteopaths who report treating migraine ‘often’ in clinical practice. MethodsSecondary analysis of a cross-sectional survey of 988 osteopaths from the Osteopathy Research and Innovation Network (ORION), an Australian practice-based research network. Regression analysis was used to identify demographic, practice and clinical management characteristics of Australian osteopaths who reported ‘often’ treating migraine patients. ResultsOver 40% of respondents (n = 400) indicated treating patients with migraines ‘often’. These osteopaths were less likely to be involved in research and be co-located with a dietician compared to osteopaths who do ‘not often’ treat migraine. Osteopaths who reported ‘often’ treating migraine were: five times as likely to treat non-English speaking ethnic groups; 2.5 times as likely to treat chronic pain, temporomandibular joint disorders and hand musculoskeletal complaints; compared to those that do not treat migraines ‘often’. ConclusionAustralian osteopaths who treat migraine are five times more likely to treat non-English speaking ethnic groups; twice as likely to treat chronic pain; temporomandibular joint disorders, and hand musculoskeletal complaints. More research is needed to identify the practices and patient outcomes associated with osteopathy care for those experiencing migraines.

Use of Practice-Based Research Networks in Massage Therapy Research.

Massage therapy is a profession, not simply an intervention, and pathways are needed to connect all key massage therapy profession components-clinicians, patient/clients, and the work-to the scholarship and research that describes, investigates, and shapes practice. While the volume of massage-related research has grown over the past few decades, much of the growing massage evidence base is not reflective of real-world massage therapy, nor is research typically conducted through the clinical lens of the massage therapy discipline. This situation reflects the unfortunate disconnect between massage therapy research and massage therapy practice, while magnifying a key research infrastructure deficiency within the massage therapy discipline: the who and where research is conducted is disconnected from the who and where massage therapy is practiced. Practice-based research networks (PBRNs) are a staple of primary care and other health professions research reflecting real life, discipline-focused practice that seeks to address the needs of the discipline's practitioners and patients. The PBRN model fits well with the directional need of massage therapy research. This paper presents a commentary on the use of PBRNs in massage therapy research, and the current state of PBRN research within the field of massage therapy, namely the recently launched MassageNet PBRN.

Swiss chiropractic cohort (Swiss ChiCo) pilot study: feasibility for a musculoskeletal cohort study conducted within a nationwide practice-based research network.

Practice-based research networks are collaborations between clinicians and researchers to advance primary care research. This study aims to assess the feasibility for longitudinal data collection within a newly established chiropractic PBRN in Switzerland. A prospective observational cohort feasibility study was performed. PBRN participating chiropractors were asked to recruit patients seeking new conservative health care for musculoskeletal pain from March 28, 2022, to September 28, 2022. Participants completed clinically oriented survey questions and patient-reported outcome measures before the initial chiropractic assessment as well as 1 h, 2 weeks, 6 weeks, and 12 weeks thereafter. Feasibility was assessed through a variety of process, resource, and management metrics. Patient clinical outcomes were also assessed. A total of 76 clinicians from 35 unique primary care chiropractic clinics across Switzerland participated. A total of 1431 patients were invited to participate, of which 573 (mean age 47years, 51% female) were enrolled. Patient survey response proportions were 76%, 64%, 61%, and 56%, at the 1-h, 2-, 6-, and 12-week survey follow-ups, respectively. Evidence of an association was found between increased patient age (OR = 1.03, 95%CI 1.01-1.04), patient from a German-speaking region (OR = 1.81, 95%CI 1.17-2.86), non-smokers (OR = 1.89, 95%CI 1.13-3.17), and increased pain impact score at baseline (OR = 1.18, 95%CI 1.01-1.38) and response to all surveys. The Swiss ChiCo pilot study exceeded its prespecified feasibility objectives. Nationwide longitudinal data capture was highly feasible. Similar to other practice-based cohorts, participant retention remains achallenge. Trial registration Swiss chiropractic cohort (Swiss ChiCo) pilot study (ClinicalTrials.gov identifier: NCT05116020).

Evaluation of a human papillomavirus vaccination training implementation in clinical and community settings across different clinical roles.

Improving human papillomavirus (HPV) vaccination is a national priority but uptake declined following the coronavirus pandemic. A strong predictor of HPV vaccination in the USA is a strong provider recommendation. Therefore, we developed a brief, asynchronous training on HPV vaccine recommendations in clinical and community settings as part of a multisite quality improvement initiative. This paper aims to describe the implementation and initial outcomes of the training provided. A 20-minute training on HPV vaccine bundled recommendations, motivational interviewing, and brief responses to patient concerns (Communicating about HPV vaccination to Adults and Teens; HPV CHAT) was implemented at seven safety-net clinics, two practice-based research network clinics, and nine county immunization clinics. We integrated training with clinical care teams; thus, we assessed immediate training outcomes across their different clinical roles compared to pre-training. In April-May 2022, HPV CHAT training was launched. One hundred eighty-seven people participated in the training and completed the pre-/postevaluation surveys. Knowledge about the HPV vaccine guidelines improved with notable changes in correctly reporting vaccine eligibility (P < .05). A significant change in participants' confidence when addressing safety concerns and answering questions about the HPV vaccine (clinicians, 26.8% and 17.1%; nurses, 29.0% and 23.2%, and clinical staff, 18.2% and 37.7%) was observed. At post-test, more than 85% of clinicians and nurses reported their plan to routinely recommend the HPV vaccine. This quality improvement initiative demonstrated implementation feasibility of a brief HPV vaccine training that improved provider and clinical staff knowledge, confidence, and intention to routinely recommend HPV vaccination.

Dipsticks and point-of-care Microscopy to reduce antibiotic use in women with an uncomplicated Urinary Tract Infection (MicUTI): protocol of a randomised controlled pilot trial in primary care

IntroductionUncomplicated urinary tract infections (uUTIs) in women are common infections encountered in primary care. Evidence suggests that rapid point-of-care tests (POCTs) to detect bacteria and erythrocytes in urine at presentation...

Prescription Trends of Thiazide Diuretics in a Canadian Primary Care Population From 2015 to 2021

BackgroundHypertension Canada 2017 guidelines favoured the use of TZ-like diuretics, such as CLTD (chlorthalidone) and indapamide (IND) over hydrochlorothiazide (HCTZ). Health Canada warned in 2019 that HCTZ may be associated with increased risk of skin cancer. Our study looked at the changes in TZ prescriptions from 2015 to 2021 in Ontario, Canada. MethodsA retrospective cohort study was conducted of adults with hypertension, using electronic medical record data from the University of Toronto Practice-Based Research Network database covering mostly the Greater Toronto area. Outcomes included the proportion of patients who received a prescription of HCTZ, CLTD, or IND each month. Interrupted time-series analysis was used to evaluate the change in outcomes after publication of the 2017 guidelines and 2019 safety warning. Prescription trends were stratified by prescribing physicians’ sex and year of medical school graduation. ResultsA total of 100,428 patients with hypertension were included in the cohort, with 31,700 patients who received at least one TZ prescription from 343 family physicians. We found a declining trend in HCTZ prescriptions over time, accompanied by an increase in IND and CLTD prescriptions, with statistically significant but transient changes in prescription rates after publication of the 2017 guidelines and the 2019 safety warning for all 3 medications. Female physician and early-career physician prescription rates changed faster than that of their counterparts immediately after the Health Canada safety warning was issued. ConclusionsTZ diuretic prescription patterns have changed in recent years, but Hypertension Canada’s 2017 guidelines and the 2019 Health Canada safety warning did not have a sustained significant impact on the change in prescription rates of HCTZ, IND, and CLTD.

Pragmatic Return to Effective Dental Infection Control through Triage and Testing (PREDICT): an observational, feasibility study to improve dental office safety

BackgroundDuring the COVID-19 pandemic, there was a substantial interruption of care, with patients and workers fearful to return to the dental office. As dental practice creates a highly aerosolized environment, the potential for spread of airborne illness is magnified. As a means to increase safety and mitigate risk, pre-visit testing for SARS-CoV-2 has the potential to minimize disease transmission in dental offices. The Pragmatic Return to Effective Dental Infection Control through Testing (PREDICT) Feasibility Study examined the logistics and impact of two different testing mechanisms (laboratory-based PCR viral testing and point-of-care antigen testing) in dental offices.MethodsDental healthcare workers (DHCWs) and patients in four dental offices within the National Dental Practice-based Research Network participated in this prospective study. In addition to electronic surveys, participants in two offices completed POC testing, while participants in two offices used lab-based PCR methods to detect SARS-CoV-2 infection. Analysis was limited to descriptive measures, with median and interquartile ranges reported for Likert scale responses and mean and standard deviation for continuous variables.ResultsOf the total 72 enrolled, 28 DHCWs and 41 patients completed the protocol. Two patients (4.9%) tested positive prior to their visit, while 2 DHCWs (12.5%) tested positive for SARS-CoV-2 infection at the start of the study. DHCWs and patients shared similar degree of concern (69% and 63%, respectively) for contracting COVID-19 from patients, while patients feared contracting COVID-19 from DHCWs less (49%). Descriptive statistics calculations revealed that saliva, tongue epithelial cells, and nasal swabs were the most desirable specimen collection method; both testing (LAB and POC) protocols took similar amounts of total time to complete; and DHCWs and patients reported feeling more comfortable when both groups were tested.ConclusionsWhile a larger-scale, network study is necessary for generalizability of results, this feasibility study suggests that SARS-CoV-2 testing can be effectively implemented into dental practice workflows and positively impact perception of safety for DHCWs and patients. As new virulent infectious diseases emerge, preparing dental personnel to employ an entire toolbox of risk mitigation strategies, including testing, may have the potential to decrease dental practice closure time, maintaining continuity of dental care services for patients.Trial registrationClinicalTrials.gov: NCT05123742.

Getting Started With Multi-site Research: Lessons From the Eliminating Monitor Overuse (EMO) Study.

Research in Pediatric Hospital Medicine is growing and expanding rapidly, and with this comes the need to expand single-site research projects into multisite research studies within practice-based research networks. This expansion is crucial to ensure generalizable findings in diverse populations; however, expanding Pediatric Hospital Medicine research projects from single to multisite can be daunting. We provide an overview of major logistical steps and challenges in project management, regulatory approvals, data use agreements, training, communication, and financial management that are germane to hospitalist researchers launching their first multisite project by sharing processes and lessons learned from running multisite research projects in the Pediatric Research in Inpatient Settings Network within the Eliminating Monitor Overuse study portfolio. This description is relevant to hospitalist researchers transitioning from single-site to multisite research or those considering serving as site lead for a multisite project.

Wearable activity tracker study exploring rheumatoid arthritis patients’ disease activity using patient-reported outcome measures, clinical measures, and biometric sensor data (the wear study)

BackgroundDigital health studies using electronic patient reported outcomes (ePROs), wearables, and clinical data to provide a more comprehensive picture of patient health. MethodsNewly initiated patients on upadacitinib or adalimumab for RA will be recruited from community settings in the Excellence NEtwork in RheumatoloGY (ENRGY) practice-based research network. Over the period of three to six months, three streams of data will be collected (1) linkable physician-derived data; (2) self-reported daily and weekly ePROs through the ArthritisPower registry app; and (3) biometric sensor data passively collected via wearable. These data will be analyzed to evaluate correlations among the three types of data and patient improvement on the newly initiated medication. ConclusionsResults from this study will provide valuable information regarding the relationships between physician data, wearable data, and ePROs in patients newly initiating an RA treatment, and demonstrate the feasibility of digital data capture for Remote Patient Monitoring of patients with rheumatic disease.

Characteristics of bowen therapy practitioners and practice in Australia: An exploratorysecondary analysis of the practitioner research and collaboration initiative (PRACI) practice-based research network

IntroductionBowen Therapy (BT) is a non-invasive manual therapy used to treat muscle pain and discomfort, poor flexibility and imbalances in the body's tissues. Globally, the BT profession comprises a small, but widely dispersed, network of practitioners. While a small pool of preliminary clinical research has begun to investigate the effectiveness of BT for a range of conditions, the investigation of the practice of BT remains extremely limited. MethodsThis study employs secondary analysis of a national cross-sectional workforce survey of complementary medicine practitioners, to describe the characteristics of BT professionals and their practices in Australia. The study sampled data collected from individuals with qualifications in Bowen Therapy involved in the Practitioner Research and Collaboration Initiative (PRACI). Data were analysed using descriptive statistics. ResultsStudy participants (n = 80), primarily female (71.3%) and with a mean age of 52.9 years, reported commonly using a range of assessment tools, discussing a range of health topics with their clients, and using diverse manual therapy techniques in their practice. Participants most commonly reported consulting with clients reporting stress (84.9%), neck pain (75.0%) and sciatica (66.0%). Participants reported treating middle aged (93.4%) and older people (63.3%) most frequently. Discussion and conclusionBTs provide care to a range of clients experiencing a number of conditions and symptoms. Further research should explore the rich details and establish the outcomes of BTs’ care with a view to helping inform safe, effective, coordinated patient care across the wider primary care team.

The associations between different types of infection and sleep duration, sleep debt, circadian preference, shift work and insomnia: results from the Norwegian practice-based research network in General Practice – PraksisNett

The associations between different types of infection and sleep duration, sleep debt, circadian preference, shift work and insomnia: results from the Norwegian practice-based research network in General Practice – PraksisNett

A pilot study of the quality of care of atrial fibrillation in Irish general practice.

Worldwide, atrial fibrillation (AF) is the most common sustained cardiac arrhythmia in adults and poses a significant burden to patients, physicians, and healthcare systems. We developed a quality of care score based on the Atrial Fibrillation Better Care pathway recommended by the European Society of Cardiology and the European Heart Rhythm Association guidelines. This is a 14-point score that we have termed the MAGIC score(Management of Atrial Fibrillation in Integrated Care and General Practice). The objective of this pilot study was to develop and test a quality of care score for patients with permanent AF in general practice. An observational cross-sectional pilot study was undertaken. Proportionate sampling was used across 11 practices from the Ireland East practice-based research network. The GPs completed a report form on each patient by undertaking a retrospective chart review. Eleven practices participated with a total of 1855 patients with AF. We received data on 153 patients. The main findings were that no patient met all 14 guideline based recommendations. The mean MAGIC score was 11.3. Points were most commonly deducted because the creatinine clearance and HAS-BLED score were not recorded, and the patient was not on the correct dose of oral anti-coagulation. This study demonstrates the feasibility of using a quality of care score to measure the quality of AF management in general practice. This scoring system, which is based on internationally recognized quality of care markers, highlights key areas that can be targeted with quality improvement intervention.

A comparison between different patient groups for diabetes management during phases of the COVID-19 pandemic: a retrospective cohort study in Ontario, Canada

BackgroundWith the onset of the COVID-19 pandemic and the large uptake in virtual care in primary care in Canada, the care of patients with type 2 diabetes has been greatly affected. This includes decreased in-person visits, laboratory testing and in-person assessments such as blood pressure (BP). No studies have investigated if these changes persisted with pandemic progression, and it is unclear if shifts impacted patient groups uniformly. The purpose of this paper was to examine changes in diabetes care pre, early, and later pandemic across different patient groups.MethodsA repeated cross-sectional design with an open cohort was used to investigate diabetes care in adults with type 2 diabetes for a 6-month interval from March 14 to September 13 over three consecutive years: 2019 (pre-pandemic period), 2020 (early pandemic period), and 2021 (later pandemic period). Data for this study were abstracted from the University of Toronto Practice-Based Research Network (UTOPIAN) Data Safe Haven, a primary care electronic medical records database in Ontario, Canada. Changes in diabetes care, which included primary care total visits, in-person visits, hemoglobin A1c (HbA1c) testing, and BP measurements were evaluated across the phases of the pandemic. Difference in diabetes care across patient groups, including age, sex, income quintile, prior HbA1c levels, and prior BP levels, were assessed.ResultsA total of 39,401 adults with type 2 diabetes were included in the study. Compared to the 6-month pre-pandemic period, having any in-person visits decreased significantly early pandemic (OR = 0.079 (0.076–0.082)), with a partial recovery later pandemic (OR = 0.162 (95% CI: 0.157–0.169). Compared to the pre-pandemic period, there was a significant decrease early pandemic for total visits (OR = 0.486 (95% CI: 0.470–0.503)), HbA1c testing (OR = 0.401 (95% CI: 0.389–0.413)), and BP measurement (OR = 0.121 (95% CI: 0.116–0.125)), with partial recovery later pandemic.ConclusionsAll measures of diabetes care were substantially decreased early pandemic, with a partial recovery later pandemic across all patient groups. With the increase in virtual care due to the COVID-19 pandemic, diabetes care has been negatively impacted over 1-year after pandemic onset.

The associations between different types of infections and circadian preference and shift work

ABSTRACT Disturbed sleep and circadian disruption are reported to increase the risk of infections. People with an evening circadian preference and night workers typically report insufficient sleep, and the aims of the present study were to investigate possible associations between various types of infections and circadian preference and shift work status. Data were collected from an online cross-sectional survey of 1023 participants recruited from the Norwegian practice-based research network in general practice – PraksisNett. The participants completed questions about circadian preference (morning type, intermediate type, evening type), work schedule (day work, shift work without nights, shift work with night shifts), and whether they had experienced infections during the last three months (common cold, throat infection, ear infection, sinusitis, pneumonia/bronchitis, COVID-19, influenza-like illness, skin infection, gastrointestinal infection, urinary infection, venereal disease, eye infection). Data were analyzed with chi-square tests and logistic regression analyses with adjustment for relevant confounders (gender, age, marital status, country of birth, children living at home, and educational level). Results showed that evening types more often reported venereal disease compared to morning types (OR = 4.01, confidence interval (CI) = 1.08–14.84). None of the other infections were significantly associated with circadian preference. Shift work including nights was associated with higher odds of influenza-like illness (OR = 1.97, CI = 1.10–3.55), but none of the other infections. In conclusion, neither circadian preference nor shift work seemed to be strongly associated with risk of infections, except for venereal disease (more common in evening types) and influenza-like illness (more common in night workers). Longitudinal studies are needed for causal inferences.

Addressing adverse social determinants of health in pediatric primary care: Study protocol for a hybrid type 2 effectiveness-implementation randomized controlled trial in two national pediatric practice-based research networks

BackgroundGrowing evidence linking social determinants of health (SDOH) to child health outcomes has prompted widespread recommendations for pediatricians to screen and refer for adverse SDOH at primary care visits. Yet there is little evidence to date demonstrating the effectiveness of practice-based SDOH screening and referral interventions on increasing family engagement with resources. This hybrid type 2 effectiveness-implementation trial aims to demonstrate the non-inferiority of a low-touch implementation strategy in order to facilitate dissemination of an existing SDOH screening and referral system (WE CARE) and demonstrate its effectiveness and sustainability in various pediatric practices. MethodsWe recruited eighteen pediatric practices in fourteen US states through two pediatric practice-based research networks. For this stepped wedge cluster RCT, practices serve as their own controls during the Usual Care phase and implement WE CARE during the intervention phase via one of two randomized implementation strategies: self-directed, pre-recorded webinar vs. study team-facilitated, live webinar. We collect data at practice, clinician/staff, and parent levels to assess outcomes grounded in the Proctor Conceptual Model of Implementation Research. We use generalized mixed effects models and differences in proportions to compare rates of resource referrals by implementation strategy, and intention-to-treat analysis to compare odds of engagement with new resources among families enrolled in the Usual Care vs. WE CARE phases. DiscussionFindings from this trial may inform decisions about broader dissemination of SDOH screening systems into a diverse spectrum of pediatric practices across the US and potentially minimize the impact of adverse SDOH on children and families.

Survival analysis of posterior composite restorations in National Dental PBRN general dentistry practices

ObjectiveQuantify the survival of posterior composite restorations (PCR) placed during the study period in permanent teeth in United States (US) general dental community practices and factors predictive of that survival. MethodsA retrospective cohort study was conducted utilizing de-identified electronic dental record (EDR) data of patients who received a PCR in 99 general dentistry practices in the National Dental Practice-Based Research Network (Network). The final analyzed data set included 700,885 PCRs from 200,988 patients. Descriptive statistics and Kaplan Meier (product limit) estimator were performed to estimate the survival rate (defined as the PCR not receiving any subsequent treatment) after the first PCR was observed in the EDR during the study time. The Cox proportional hazards model was done to account for patient- and tooth-specific covariates. ResultsThe overall median survival time was 13.3 years. The annual failure rates were 4.5–5.8 % for years 1–5; 5.3–5.7 %, 4.9–5.5 %, and 3.3–5.2 % for years 6–10, 11–15, and 16–20, respectively. The failure descriptions recorded for < 7 % failures were mostly caries (54 %) and broken or fractured tooth/restorations (23 %). The following variables significantly predicted PCR survival: number of surfaces that comprised the PCR; having at least one interproximal surface; tooth type; type of prior treatment received on the tooth; Network region; patient age and sex. Based on the magnitude of the multivariable estimates, no single factor predominated. ConclusionsThis study of Network practices geographically distributed across the US observed PCR survival rates and predictive factors comparable to studies done in academic settings and outside the US. Clinical significanceSpecific baseline factors significantly predict the survival of PCRs done in US community dental practices.