Observational studyBMC medical informatics and decision making2018
On the effect of electronic patient portal on primary care utilization and appointment adherence.
Observational study in BMC medical informatics and decision making, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
31 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- The Impact of Digital Patient Portals on Health Outcomes, System Efficiency, and Patient Attitudes: Updated Systematic Literature Review.Journal of medical Internet research · 2021Pooled it
- Quantifying Patient Portal Use: Systematic Review of Utilization Metrics.Journal of medical Internet research · 2021Pooled it
- Impacts of epic MyChart and healthy planet on clinical care measures: a scoping review protocol.BMJ open · 2026Article
- Patient Portal Access and Missed Medical Appointments: A Case-Control Study.Journal of patient experience · 2026Article
- Predictors of No-Show in a Safety-Net Otolaryngology Clinic: A Repeated Measures Approach.The Laryngoscope · 2025Article
- Uptake and user characteristics of MyChart within a Canadian community hospital with a diverse patient population: A comparative study.PLOS digital health · 2025Article
- Protocol for a randomized controlled trial of patient-portal-based screening for substance use among people with HIV.Frontiers in public health · 2025Article
- Patient Perspectives on Portal-Based Anxiety and Depression Screening in HIV Care: A Qualitative Study Using the Consolidated Framework for Implementation Research.International journal of environmental research and public health · 2024Article
- Electronic Patient Portal Use Among People Living With HIV.Journal of medical Internet research · 2023Article
- Development of an Electronic Health Record-Based Clinical Decision Support Tool for Patients With Lynch Syndrome.JCO clinical cancer informatics · 2023Article
- Adult Patients' Experiences of Using a Patient Portal With a Focus on Perceived Benefits and Difficulties, and Perceptions on Privacy and Security: Qualitative Descriptive Study.JMIR human factors · 2023Article
- The Impact of an Electronic Portal on Patient Encounters in Primary Care: Interrupted Time-Series Analysis.JMIR medical informatics · 2023Article
- MediLinker: a blockchain-based decentralized health information management platform for patient-centric healthcare.Frontiers in big data · 2023Article
- Tablet distribution to veterans: an opportunity to increase patient portal adoption and use.Journal of the American Medical Informatics Association : JAMIA · 2022Article
- Characteristics of Adult Primary Care Patients Who Use the Patient Portal: A Cross-Sectional Analysis.Applied clinical informatics · 2022Article
- Prevalence, Factors, and Association of Electronic Communication Use With Patient-Perceived Quality of Care From the 2019 Health Information National Trends Survey 5-Cycle 3: Exploratory Study.Journal of medical Internet research · 2022Article
- Digital Health Interventions to Enhance Prevention in Primary Care: Scoping Review.JMIR medical informatics · 2022Article
- Patient portals for the adolescent and young adult population: Benefits, risks and guidance for use.Current problems in pediatric and adolescent health care · 2021Article
- Implementation Strategies to Improve Engagement With a Multi-Institutional Patient Portal: Multimethod Study.Journal of medical Internet research · 2021Article
- Patient portal engagement and diabetes management among new portal users in the Veterans Health Administration.Journal of the American Medical Informatics Association : JAMIA · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe objective of this study was to investigate the impact of patient portal adoption on patients' primary care utilization and appointment adherence.
methodsWe conducted a retrospective observational study using a panel difference-in-differences (DID) framework to investigate the use of primary care services by patients, adjusting for their disease burden and allowing for time-dependent portal effect. A large dataset with 46,544 patients of University of Florida (UF) Health during the study period July 2013 - June 2016 was used. The main outcome measures are disease burden adjusted rates of office visits arrived, no-show, and cancellation to primary care physicians (PCPs) per quarter between patient portal adopters (denoted as users) and non-users.
resultsAt the time of adoption, the quarterly PCP office visit rate ratio (RR) of patient portal users to non-users was 1.33 (95% CI, 1.27-1.39; p < 0.001). The RRs were between 0.94 to 0.99 up to four quarters after portal adoption (p = 0.749, 0.100, 0.131, and 0.091, respectively), and were significantly less than one at the seventh (RR =0.82; 95% CI, 0.73-0.91; p < 0.001) and the eighth (RR = 0.80; 95% CI, 0.70-0.90; p < 0.001) quarters post adoption. The quarterly no-show rates of the users were significantly smaller (RRs were between 0.60 and 0.83) except for the seventh, eighth and tenth quarters post adoption. In these three quarters, the no-show rates were not significantly changed (p = 0.645, 0.295, and 0.436, respectively). Quarterly cancellation rates were not significantly affected by portal adoption (p > 0.05 for all cases).
conclusionsPatient portal users' disease burden adjusted PCP office visit rate was significantly reduced in one and a half year and thereafter post portal adoption. PCP appointment no-show rate was also significantly reduced and cancellation rate was not affected, implying improved care engagement of patients.
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