Personal and delivery site characteristics associated with intervention dosage in an evidence-based fall risk reduction program for older adults.

The objective of this study is to identify sociodemographics of older adults enrolled in a nationally disseminated evidence-based fall risk reduction program, describe different delivery sites, and examine personal and site characteristics associated with intervention adherence. Data were analyzed from 6,922 older adults enrolled in A Matter of Balance/Volunteer Lay Leader (AMOB/VLL) model between 2006 and 2009. Intervention dosage was measured by workshop attendance. Logistic regression analyses examined factors associated with attendance levels. Intervention dosage differed by sociodemographic and delivery site characteristics. Patterns of intervention dose significantly differed between Hispanic and non-Hispanic White participants. Those with less education and living in rural areas were more likely to receive adequate program doses. Although senior services agencies offered the most programs, intervention adherence was more likely in nonaging service sites. Findings may help program administrators better understand and minimize attrition issues within their AMOB/VLL workshops.