title: The Effect of a Pro-Breastfeeding and Healthy Complementary Feeding Intervention Targeting Adolescent Mothers and Grandmothers on Growth and Prevalence of Overweight of Preschool Children.
abstract: BACKGROUND
  The pattern and duration of breastfeeding (BF) and the age at onset of complementary feeding, as well as its quality, have been associated with the prevalence of overweight in childhood.
  
  
  OBJECTIVE
  To assess the effect of a pro-BF and healthy complementary feeding intervention, targeted to adolescent mothers and maternal grandmothers, on growth and prevalence of overweight and obesity in children at preschool age. This intervention had a positive impact on duration of BF and timing of onset of complementary feeding.
  
  
  METHODS
  This randomized clinical trial involved 323 adolescent mothers, their infants, and the infants' maternal grandmothers, when they cohabited. Mothers and grandmothers in the intervention group received counseling sessions on BF and healthy complementary feeding at the maternity ward and at home (7, 15, 30, 60, and 120 days after delivery). When children were aged 4 to 7 years, they underwent anthropometric assessment and collection of data on dietary habits. Multivariable Poisson regression with robust estimation was used for analysis.
  
  
  RESULTS
  BMI-for-age and height-for-age were similar in the intervention and control groups, as was the prevalence of overweight (39% vs. 31% respectively; p=0.318). There were no significant between-group differences in dietary habits.
  
  
  CONCLUSIONS
  Although the intervention prolonged the duration of exclusive BF and delayed the onset of complementary feeding, it had no impact on growth or prevalence of overweight at age 4 to 7 years.
  
  
  BACKGROUND
  ClinicalTrials.gov NCT00910377.
authors.affiliation: Graduate Program in Child and Adolescent Health, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
authors.forename: Renata
authors.initials: R
authors.lastname: Schwartz
authors.affiliation: Department of Statistics, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
authors.forename: Álvaro
authors.initials: Á
authors.lastname: Vigo
authors.affiliation: Department of Nutrition, Universidade Federal do Rio Grande do Sul, Center for Food and Nutrition Studies (CESAN), Hospital de Clínicas de Porto Alegre, HCPA, Porto Alegre, Rio Grande do Sul, Brazil.
authors.forename: Luciana Dias
authors.initials: LD
authors.lastname: de Oliveira
authors.affiliation: Graduate Program in Child and Adolescent Health, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
authors.forename: Elsa Regina
authors.initials: ER
authors.lastname: Justo Giugliani
mesh_terms: D000293:Adolescent; D001942:Breast Feeding; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D003376:Counseling; D005260:Female; D000066502:Grandparents; D006293:Health Promotion; D006801:Humans; D007223:Infant; D007227:Infant Nutritional Physiological Phenomena; D008297:Male; D008423:Maternal Age; D009035:Mothers; D050177:Overweight / Q000453:epidemiology / Q000517:prevention & control*; D015995:Prevalence