title: Development of a theory-based, peer support intervention to promote weight loss among Latina immigrants.
abstract: BACKGROUND
  Obesity rates are disproportionately high among Latinas living in the United States. Few community-based weight management studies have focused on Latina immigrants living in emerging Latino communities. The purpose of this study was to develop and pilot test a theory-based, promotora-delivered, peer support weight loss intervention for Latina immigrants to be administered in a community setting. We employed participatory methods to develop an 8-week program grounded in self-determination theory. Overweight Latina immigrants were recruited to participate in a quasi-experimental pilot study. Data collected pre and post-intervention included height, weight, fasting lipids, glucose, dietary practices, physical activity and depressive symptoms.
  
  
  RESULTS
  Twenty-two women completed the intervention. Mean age was 36, mean time in the U.S. was 12 years; the majority was from Mexico. Mean BMI was 33; 68% had a family history of diabetes. The intervention resulted in statistically significant weight loss (mean 2.1 kg, SD 2.6, p < 0.001); mean change in weight remained significant when compared with that of a historical control group (-2.1 kg vs 1.10 kg, p < 0.01) but was attenuated at 6 months. Levels of moderate physical activity increased significantly (p < 0.05) and dietary practices improved (p < 0.01) and remained significant at 6 months. Notably, depressive symptoms also improved (p = <0.001).
  
  
  CONCLUSIONS
  This theory-based, promotora-delivered intervention resulted in significant weight loss among a sample of Latina immigrants at 8 weeks. Future studies are needed to test the impact of an extended peer support intervention on long-term weight management.
  
  
  BACKGROUND
  National Clinical Trials: NCT02344212. Registered 21 January 2015.
authors.affiliation: Division of Preventive Medicine, School of Medicine, University of Alabama at Birmingham, MT 612, 1720 2nd Avenue South, Birmingham, Alabama 35294 USA.
authors.forename: Andrea L
authors.initials: AL
authors.lastname: Cherrington
authors.affiliation: Division of Infectious Diseases, School of Medicine, University of Alabama at Birmingham, BBRD 207, 1720 2nd Avenue South, Birmingham, Alabama 35294 USA.
authors.forename: Amanda L
authors.initials: AL
authors.lastname: Willig
authors.affiliation: Division of Preventive Medicine, School of Medicine, University of Alabama at Birmingham, MT 612, 1720 2nd Avenue South, Birmingham, Alabama 35294 USA.
authors.forename: April A
authors.initials: AA
authors.lastname: Agne
authors.affiliation: Division of Preventive Medicine, School of Medicine, University of Alabama at Birmingham, MT 612, 1720 2nd Avenue South, Birmingham, Alabama 35294 USA.
authors.forename: M Cecilia
authors.initials: MC
authors.lastname: Fowler
authors.affiliation: Division of Preventive Medicine, School of Medicine, University of Alabama at Birmingham, MT 612, 1720 2nd Avenue South, Birmingham, Alabama 35294 USA.
authors.forename: Gareth R
authors.initials: GR
authors.lastname: Dutton
authors.affiliation: Division of Preventive Medicine, School of Medicine, University of Alabama at Birmingham, MT 612, 1720 2nd Avenue South, Birmingham, Alabama 35294 USA.
authors.forename: Isabel C
authors.initials: IC
authors.lastname: Scarinci
keywords: Community Health Workers; Community-based participatory research; Diabetes prevention; Latino; Obesity; Peer support