Cardiovascular

A Nudge Theory-Based Mobile Health Intervention for Self-Management in Young and Middle-Aged Patients With Hypertension: Mixed Methods Pilot Study.

TL;DR

A nudge theory-based mobile health app (LeYi) showed significant pre-to-post improvements in self-management scores and eHealth literacy over 24 weeks in young and middle-aged hypertension patients, with favorable usability ratings, though a larger randomized controlled trial is needed to determine efficacy.

Key Findings

Self-management scores showed significant improvement from pre- to post-intervention in young and middle-aged patients with hypertension using the LeYi app.

  • Median self-management score changed from 68.0 to 108.5 over the 24-week intervention period
  • The improvement was statistically significant (z=4.788; P<.001)
  • The study used a single-group pre-post design with 30 participants who completed the intervention
  • Outcomes were assessed using validated scales

eHealth literacy showed significant improvement following the 24-week LeYi app intervention.

  • Median eHealth literacy score changed from 15.5 to 34.0
  • The improvement was statistically significant (z=4.544; P<.001)
  • eHealth literacy was measured using validated scales alongside self-management outcomes
  • The intervention duration was 24 weeks

The LeYi app demonstrated favorable usability among young and middle-aged hypertension patients.

  • Median user version of the Mobile App Rating Scale (uMARS) score was 4.5
  • Interquartile range for usability scores was 4.0–5.0
  • Thirty participants completed the 24-week intervention and contributed usability data
  • The uMARS is a validated instrument for assessing mobile app usability

Qualitative thematic analysis identified six themes that complemented quantitative findings and highlighted technology adaptation challenges.

  • Thematic analysis was conducted using interview data from participants
  • Six themes were identified in total
  • The qualitative findings both complemented the quantitative results and revealed technology adaptation challenges faced by participants
  • This formed part of the mixed-methods study design

Young and middle-aged patients with hypertension were identified as a target population with poor self-management attributed to limited cognitive bandwidth.

  • The study rationale noted that young and middle-aged hypertension patients 'often show poor self-management due to limited cognitive bandwidth'
  • Mobile health apps using behavioral economics were proposed as potentially helpful for these patients
  • The LeYi app was designed using nudge theory, a branch of behavioral economics, to address this gap
  • The study used a mixed-methods pilot design to evaluate preliminary effectiveness and usability

The authors concluded that the LeYi app may be feasible and acceptable for enhancing self-management but that a larger randomized controlled trial is needed.

  • The authors stated 'The LeYi app may be feasible and acceptable for enhancing self-management in young and middle-aged patients with hypertension'
  • A larger randomized controlled trial was identified as necessary 'to determine its efficacy'
  • The study was a single-group pre-post pilot with 30 participants, limiting causal inference
  • Embedding behavioral economics into mobile health was described as 'a promising approach to support patient engagement'

What This Means

This research suggests that a smartphone app called LeYi, designed using 'nudge theory' — a behavioral economics concept that gently steers people toward healthier choices without restricting their freedom — may help younger and middle-aged adults with high blood pressure better manage their condition. Over a 24-week period, 30 participants used the app and showed meaningful improvements in both their self-management skills and their ability to find and use health information online (eHealth literacy). Users also rated the app highly for usability, suggesting it was easy and acceptable to use in daily life. The study combined numerical measurements with in-depth interviews, revealing six themes about how participants experienced the app. While most findings were positive, the interviews also highlighted that some users faced challenges adapting to the technology, an important consideration for app design going forward. The study was a small pilot without a comparison group, meaning it cannot prove that the app itself caused the improvements rather than other factors. This research suggests that embedding behavioral economics principles into health apps could be a promising strategy for helping people with hypertension — particularly younger and working-age adults who may be busy or have limited mental bandwidth for managing a chronic condition. However, the authors emphasize that a larger, properly controlled clinical trial is needed before strong conclusions about the app's effectiveness can be drawn.

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Citation

Yang Y, Xu W, Zhang Y, Yang X, Li L, Yang J. (2026). A Nudge Theory-Based Mobile Health Intervention for Self-Management in Young and Middle-Aged Patients With Hypertension: Mixed Methods Pilot Study.. JMIR formative research. https://doi.org/10.2196/95444