Research
Adherence
Males, smokers, and individuals with higher estimated medical costs (RxRisk) are less likely to enroll in internet-based weight loss programs than females, nonsmokers, and lower-risk individuals.
To reach high-risk populations (smokers, males, those with chronic illness), use targeted, personalized outreach from trusted sources. General marketing may not reach these groups effectively.
GoodRefutesHIGH confidence
males, those over age 60, smokers, and those estimated to have higher medical expenses were less likely to enroll (all P < .001).
Why this rating
RCT with large sample size, clear statistical significance.
Source
Reach, Engagement, and Retention in an Internet-Based Weight Loss Program in a Multi-Site Randomized Controlled Trial
Russell E. Glasgow et al. · Journal of Medical Internet Research · 2007
DOI 10.2196/jmir.9.2.e11
rct · n=2311Cited 223×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
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