title: Validity of perceived weight gain in women using long-acting reversible contraception and depot medroxyprogesterone acetate.
abstract: OBJECTIVE
  The objective of the study was to evaluate perceived weight gain in women using contraception and determine the validity of self-reported weight gain.
  
  
  METHODS
  We analyzed data from new contraceptive method users who self-reported a weight change at 3, 6, and 12 months after enrollment. We examined a subgroup of participants with objective weight measurements at baseline and 12 months to test the validity of self-reported weight gain.
  
  
  RESULTS
  Thirty-four percent of participants (1407 of 4133) perceived weight gain. Compared with copper intrauterine device users, implant users (relative risk, 1.29; 95% confidence interval, 1.10-1.51) and depot medroxyprogesterone acetate users (relative risk, 1.37; 95% confidence interval, 1.14-1.64) were more likely to report perceived weight gain. Women who perceived weight gain experienced a mean weight gain of 10.3 pounds. The sensitivity and specificity of perceived weight gain were 74.6% and 84.4%, respectively.
  
  
  CONCLUSIONS
  In most women, perceived weight gain represents true weight gain. Implant and depot medroxyprogesterone acetate users are more likely to perceive weight gain among contraception users.
authors.affiliation: Division of Clinical Research, Department of Obstetrics and Gynecology, Washington University in St. Louis School of Medicine, St. Louis, MO, USA.
authors.forename: Ashley M
authors.initials: AM
authors.lastname: Nault
authors.forename: Jeffrey F
authors.initials: JF
authors.lastname: Peipert
authors.forename: Qiuhong
authors.initials: Q
authors.lastname: Zhao
authors.forename: Tessa
authors.initials: T
authors.lastname: Madden
authors.forename: Gina M
authors.initials: GM
authors.lastname: Secura
mesh_terms: D000328:Adult; D001835:Body Weight / Q000187:drug effects*; D003271:Contraceptive Agents, Female / Q000009:adverse effects*; D005260:Female; D006801:Humans; D007434:Intrauterine Devices / Q000009:adverse effects*; D017258:Medroxyprogesterone Acetate / Q000009:adverse effects*; D012649:Self Concept; D015430:Weight Gain / Q000187:drug effects*
chemical_list: D003271:Contraceptive Agents, Female; D017258:Medroxyprogesterone Acetate