Impact of Intervention Dose on Cancer-related Health Behaviors Among Working-class, Multiethnic, Community Health Center Patients
2007
Abstract Purpose To examine the relationship between intervention dose and health behavior change in Healthy Directions–Health Centers, an intervention designed to reduce cancer risk factors. Design Analysis of intervention condition participant data from a randomized controlled trial. Setting Community health centers in Massachusetts. Subjects Patients residing in low-income, working-class, multiethnic neighborhoods. Intervention Components were clinician endorsement, in-person counseling session and four telephone counseling sessions with a trained health advisor, and social-contextual tailored materials. Measures Intervention dose was number of six possible intervention components completed by each participant. Changes in fruit and vegetable consumption, red meat consumption, physical activity, and multivitamin intake between baseline (n = 1088) and 8-month follow-up (n = 967; 89% of baseline sample) were determined. Analysis Bivariate and multivariate associations between intervention dose and cha...
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