Weight Loss Disparities Among Hispanic and Underserved Participants, Colorado, 2015-2018.

INTRODUCTION: The National Diabetes Prevention Program (DPP) is an evidence-based strategy to prevent the development of type 2 diabetes in adults at high risk through education and behavior modifications that promote weight loss. This evaluation aimed to determine if National DPP participants' weight-related outcomes varied across demographic subgroups, including sex, age, race/ethnicity, and insurance status, after controlling for program attendance and physical activity. METHODS: Our cross-site evaluation used participant-level data from 11 organizations during July 2015 through June 2018. A modified Poisson regression model was used to examine the relationship between demographic subgroups, controlling for physical activity (minutes per week) and program attendance. RESULTS: A total of 1,007 National DPP participants were included in the analyzed sample. Participants lost an average of 4% of their initial body weight, approximately 8 pounds. About one-third of participants achieved greater than 5% weight loss. In the unadjusted estimates, participants who were Hispanic, non-Hispanic Black, young, and uninsured were significantly less likely to achieve 5% or greater weight loss. Demographic differences in achieving 5% or greater weight loss, however, were not significant after adjusting for program attendance and physical activity level. CONCLUSIONS: Disparities in National DPP weight-related outcomes were not observed across demographic groups after adjusting for program attendance and physical activity levels. However, non-Hispanic Black participants had lower attendance and Hispanic participants reported less physical activity than participants of other races/ethnicities. Strategies to improve National DPP participation and increase physical activity, therefore, should be prioritized among Hispanic and non-Hispanic Black participants.

Barriers and Facilitators of National Diabetes Prevention Program Engagement Among Women of Childbearing Age: A Qualitative Study.

PURPOSE: The purpose of this study was to understand barriers and facilitators to engagement in a diabetes prevention program for young women at an urban safety-net health care system. METHODS: Individual semistructured interviews (N = 29) explored motivations, challenges, and successes regarding participation and suggestions for improvement among women aged 18 to 39 years who enrolled in the National Diabetes Prevention Program in the past 2 years. Participants were classified as nonattendees (n = 10), early-withdrawers (n = 9), or completers (n = 10). Interview transcriptions were analyzed using a grounded hermeneutic editing approach. RESULTS: Qualitative analysis revealed 4 main themes (enrollment, attendance, experience, and suggestions) with multiple subthemes. Most women were motivated to enroll for health and family concerns. Early-withdrawers and nonattendees reported confusion about the program's aim and relevancy, logistical barriers, and lack of connection with fellow participants/coaches. Highly engaged women noted persistent motivation, perceived weight loss, and supportive program relationships. CONCLUSIONS: Multiple barriers/facilitators for young women appear addressable in future adaptations. Additional research is needed to confirm these findings in other settings and explore implementation and effectiveness of adaptations, with a goal of reducing risks prior to conception.