title: The influence of social context on changes in fruit and vegetable consumption: results of the healthy directions studies.
abstract: As part of the Harvard Cancer Prevention Program Project, we used a social contextual model of health behavior change to test an intervention targeting multiple risk-related behaviors in working-class, multiethnic populations. We examined the relationships between the social contextual factors in our conceptual model and changes in fruit and vegetable consumption from baseline to completion of intervention in health centers and small business studies. We analyzed change in fruit and vegetable consumption, measured at baseline and final assessments by self-report, in 2 randomized controlled prevention trials: 1 in small businesses (n = 974) and 1 in health centers (n = 1954). Stronger social networks, social norms that were more supportive, food sufficiency, and less household crowding were associated with greater change in fruit and vegetable intake. We also observed differences between our intervention sites. Social context can play an important role in promoting changes in fruit and vegetable consumption.
authors.affiliation: Center for Community-Based Research, Dana-Farber Cancer Institute, Boston, Mass 02115, USA. glorian_sorensen@dfci.harvard.edu
authors.forename: Glorian
authors.initials: G
authors.lastname: Sorensen
authors.forename: Anne M
authors.initials: AM
authors.lastname: Stoddard
authors.forename: Tamara
authors.initials: T
authors.lastname: Dubowitz
authors.forename: Elizabeth M
authors.initials: EM
authors.lastname: Barbeau
authors.forename: JudyAnn
authors.initials: J
authors.lastname: Bigby
authors.forename: Karen M
authors.initials: KM
authors.lastname: Emmons
authors.forename: Lisa F
authors.initials: LF
authors.lastname: Berkman
authors.forename: Karen E
authors.initials: KE
authors.lastname: Peterson
mesh_terms: D000328:Adult; D004032:Diet; D005006:Ethnicity; D005260:Female; D005638:Fruit; D015438:Health Behavior / Q000208:ethnology; D006801:Humans; D016014:Linear Models; D008297:Male; D008404:Massachusetts / Q000453:epidemiology; D008875:Middle Aged; D009369:Neoplasms / Q000453:epidemiology / Q000208:ethnology / Q000517:prevention & control*; D009752:Nutritional Status; D018570:Risk Assessment; D012923:Social Class; D014675:Vegetables; D017132:Workplace