title: Weight gain, adiposity, and eating behaviors among adolescent females on depot medroxyprogesterone acetate (DMPA).
abstract: OBJECTIVE
  To identify risk factors for weight gain and explore body composition and eating behaviors among adolescent females initiating depot medroxyprogesterone acetate (DMPA).
  
  
  METHODS
  A longitudinal study was conducted in 43 adolescent females beginning DMPA. Data collection at baseline, 3, and 6 months included structured interview; measurement of height, weight, and percent body fat; and assessment of dietary restraint, disinhibition, and appetite.
  
  
  RESULTS
  Black and white subjects did not differ in baseline weight or body composition. At 6 months, black subjects had a 4.2% increase in weight (mean weight gain=2.9 kg; P=0.003) and a 12.5% increase in body fat (mean fat gain =2.5 kg; P<0.001). In contrast, white subjects had a 1.2% increase in weight (mean weight gain=0.9 kg; P=0.32) and a 1.2% increase in body fat (mean fat gain of 0.5 kg; P=0.54). Baseline weight (P<0.001), study visit (P=0.005), age (P=0.006), eating restraint (P=0.005), eating disinhibition (P<0.001), and other medications (P<0.001) were predictive of weight gain in black subjects. Only baseline weight (P<0.001) was predictive in white subjects. Higher baseline weight (adjusted odds ratio (AOR)=1.2, 95% confidence interval (CI)=1.1,1.3) was a risk factor for gaining >2.2 kg the first 3 months. Black race (AOR=7.8, 95% CI=1.5, 66.2) and younger age at menarche (AOR=0.6, 95% CI=0.3, 0.9) were risk factors for gaining >2.2 kg the second 3 months. Appetite decreased in the study sample reaching statistical significance in black subjects.
  
  
  CONCLUSIONS
  Our data suggest that black and white adolescents differ in the quantity, timing, and predictors of weight gain on DMPA. DMPA-associated weight gain is paralleled by increases in total body fat, while appetite decreases on DMPA.
authors.affiliation: Division of Adolescent Medicine, Children's Hospital Medical Center, Cincinnati, Ohio 44109, USA. abonny@metrohealth.org
authors.forename: Andrea E
authors.initials: AE
authors.lastname: Bonny
authors.forename: Maria T
authors.initials: MT
authors.lastname: Britto
authors.forename: Bin
authors.initials: B
authors.lastname: Huang
authors.forename: Paul
authors.initials: P
authors.lastname: Succop
authors.forename: Gail B
authors.initials: GB
authors.lastname: Slap
mesh_terms: D000293:Adolescent; D000328:Adult; D044383:Black People; D001823:Body Composition / Q000187:drug effects; D015992:Body Mass Index; D003271:Contraceptive Agents, Female / Q000009:adverse effects*; D005247:Feeding Behavior / Q000187:drug effects* / Q000208:ethnology; D005260:Female; D006801:Humans; D007407:Interviews as Topic; D008137:Longitudinal Studies; D017258:Medroxyprogesterone Acetate / Q000009:adverse effects*; D009765:Obesity / Q000139:chemically induced* / Q000208:ethnology; D011446:Prospective Studies; D012307:Risk Factors; D015430:Weight Gain / Q000187:drug effects*; D044465:White People
chemical_list: D003271:Contraceptive Agents, Female; D017258:Medroxyprogesterone Acetate