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Effects of a Theory- and Evidence-Based, Motivational Interviewing–Oriented Artificial Intelligence Digital Assistant on Vaccine Attitudes: A Randomized Controlled Trial

Effects of a Theory- and Evidence-Based, Motivational Interviewing–Oriented Artificial Intelligence Digital Assistant on Vaccine Attitudes: A Randomized Controlled Trial

Participant characteristics and outcomes at baseline. at test. b Chi-square value. c$ represents Hong Kong dollars (HK $). A currency exchange rate of HK $10,000=US $1273 is applicable. dz score. Table 1 describes participants’ characteristics at baseline. Among 177 participants, the mean age was 43.38 (SD 16.42) years, 65% (115/177) were female, 64.4% (114/177) had college or above education, 54.8% (97/177) were employed, and 68.4% (121/177) had a monthly household income above HK $20,000 (US $2548).

Yan Li, Mengqi Li, Janelle Yorke, Daniel Bressington, Joyce Chung, Yao-Jie Xie, Lin Yang, Mengting He, Tsz-Ching Sun, Angela Y M Leung

J Med Internet Res 2025;27:e72637

What Matters Most to Veterans When Deciding to Use Technology for Health: Cross-Sectional Analysis of a National Survey

What Matters Most to Veterans When Deciding to Use Technology for Health: Cross-Sectional Analysis of a National Survey

In partnership with researchers from the VHA’s Quality Enhancement Research Initiative Program, the VHA Office of Connected Care, responsible for the VHA’s digital health strategy, launched the Veterans Engagement with Technology Collaborative (VET-C) cohort in 2017. A longitudinal data collection effort, the VET-C cohort combines veteran survey data collected over 3 timepoints with VHA administrative records [26].

Bella Etingen, Bridget M Smith, Stephanie L Shimada, Stephanie A Robinson, Robin T Higashi, Ndindam Ndiwane, Kathleen L Frisbee, Jessica M Lipschitz, Eric Richardson, Dawn Irvin, Timothy P Hogan

JMIR Form Res 2025;9:e77113

Effectiveness of an mHealth Program on Reducing Blood Pressure Among Young Adults With Prehypertension: Protocol of a Pragmatic Cluster Randomized Controlled Trial

Effectiveness of an mHealth Program on Reducing Blood Pressure Among Young Adults With Prehypertension: Protocol of a Pragmatic Cluster Randomized Controlled Trial

In the equation, n is the sample size required, Z1-α/2 is the desired confidence level (ie, for a 95% confidence level, Z1-α/2=1.96), Z1-β is the power of the test (ie, for a power of 80%, Z1-β=0.84), σ² is the population variance (ie, square of the SD), m is the number of groups being compared, ρ is the correlation coefficient between groups, and d is the minimum detectable difference. Accounting for a 20% dropout rate, the final sample size was 43 participants per group.

Melita Sheilini, H Manjunatha Hande, Nagaraja Ravishankar, Akshay M J, Jyothi Nayak, Ramesh Chandrababu

JMIR Res Protoc 2025;14:e67216