ArticleJAMIA open2026
Timely nudges promote patient portal enrollment and sustained engagement: a randomized controlled trial.
Article in JAMIA open, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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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.
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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.
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Objective: Patient portals support health management, yet enrollment remains low. This study evaluated whether timely email nudges increase patient portal enrollment compared with usual system portal invitations, whether message framing influences enrollment, and whether patients nudged to enroll go on to engage with the portal at similar rates as those who enroll organically. Materials and Methods: In this pre-registered randomized controlled trial at a large health system, 5009 patients aged ≥ 18 with recently released laboratory results were randomized over 15 days to: (1) an "Ease" email suggesting immediate access to laboratory results, upon enrollment, (2) a "Transparent" email outlining registration steps needed to access their results, or (3) no email. The primary outcome was portal enrollment within one week. Secondary outcomes included enrollment rates over four years and post-enrollment portal engagement. Post hoc analysis examined the impact of time-sensitive test results. Results: Compared with control, receiving either nudge increased one-week portal enrollment (10.8% vs 3.9%; OR 2.99, Discussion and Conclusion: Beyond standard marketing efforts, timely nudges highlighting the immediate benefit of accessing laboratory test results can meaningfully increase patient portal enrollment-especially when results are time-sensitive. These low-cost, one-time interventions can drive adoption without sacrificing long-term engagement.
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