BACKGROUND: Initial trials of web-based smoking-cessation programs have generally been
promising. The active components of these programs, however, are not well understood. …

Background: The Internet provides us with tools (user metrics or paradata) to evaluate how
users interact with online interventions. Analysis of these paradata can lead to design …

OBJECTIVE: To experimentally test whether using pictographs (image matrices),
incremental risk formats, and varied risk denominators would influence perceptions and …

The growing incidence of HIV infection among low-income and minority women makes it
important to investigate how these women adjust to living with HIV and AIDS. Psychological …

Objectives. We assessed change in fruit and vegetable intake in a population-based sample,
comparing an online untailored program (arm 1) with a tailored behavioral intervention (…

Background. This study examined the characteristics, tobacco use patterns over time, and
predictors of tobacco cessation among concomitant users of cigarettes and smokeless tobacco…

Background Despite having many advantages, online eHealth trials are not without
challenges—notably, participant recruitment, and outcome data retention. Moreover, publications …

Introduction: Patient adherence to smoking cessation medications can impact their effectiveness.
It is important to understand the extent to which prescribed medications are actually …

Introduction: Older adults, who already have higher levels of social isolation, loneliness, and
sedentary behavior, are particularly susceptible to negative impacts from social distancing …

Background: There has been an increase in consumer-facing mobile health (mHealth) apps
in recent years. Prior reviews have characterized the availability, usability, or quality of …