Cardiovascular Health Research in the Workplace: A Workshop Report

Network spillover effects associated with the ChooseWell 365 workplace randomized controlled trial to promote healthy food choices

Food choices are closely linked to culture, social relationships, and health. Because many adults spend up to half their time at work, the workplace provides a venue for changing population health-related behaviors and norms. It is unknown whether the effects of a workplace intervention to improve health behaviors might spread beyond participating employees due to social influence. ChooseWell 365 was a randomized controlled trial testing a 12-month healthy eating intervention grounded in principles of behavioral economics. This intervention leveraged an existing cafeteria traffic-light labeling system (green = healthy; red = unhealthy) in a large hospital workplace and demonstrated significant improvements in healthy food choices by employees in the intervention vs. control group. The current study used data from over 29 million dyadic purchasing events during the trial to test whether social ties to a trial participant co-worker (n = 299 intervention, n = 302 control) influenced the workplace food choices of non-participants (n = 7900). There was robust evidence that non-participants who were socially tied to more intervention group participants made healthier workplace food purchases overall, and purchased a greater proportion of healthy (i.e., green) food and beverages, and fewer unhealthy (i.e., red) beverages and modest evidence that the benefit of being tied to intervention participants was greater than being tied to control participants. Although individual-level effect sizes were small, a range of consistent findings indicated that this light-touch intervention yielded spillover effects of healthy eating behaviors on non-participants. Results suggest that workplace healthy eating interventions could have population benefits extending beyond participants.

Factors Influencing Long-Term Care Workers' Self-Efficacy for Encouraging Residents to Engage in Physical Activity

We aimed to assess work-related factors and their association with long-term care workers' self-efficacy for encouraging and engaging residents in physical activity. Baseline data from a worksite wellness study with 98 workers were used. We used a linear regression model, to assess if job satisfaction, work ability, and social support for staff health behaviors from coworkers and supervisors were associated with staffs' self-efficacy for Function-Focused Care (FFC) and Staffs' Outcome Expectations for FFC. Staffs' social support for healthy behaviors from coworkers was the only factor that was significantly associated with Staffs' Outcome Expectations for FFC and staffs' self-efficacy-FFC, respectively explaining 19% and 14% of the variance. Our findings show that staffs' social support from coworkers is associated with higher self-efficacy for encouraging and engaging residents in physical activity suggests future worksite wellness studies with long-term care workers may wish to consider assessing program impacts on residents' physical activity levels.