title: Women's reported weight: is there a discrepancy?
abstract: OBJECTIVE
  To compare self-reported pre-pregnancy weight & delivery weight with documented pre-pregnancy & delivery weight and determine whether there are differences compared with the Institute of Medicine's (IOM) guidelines.
  
  
  METHODS
  This is a retrospective analysis of 234 women. Inclusion criteria included documented height, self-reported pre-pregnancy weight, self-reported delivery weight, documented pre-pregnancy weight ± 12 weeks from last menstrual period, and documented delivery weight ± 2 weeks from delivery. We determined the difference between self-reported pre-pregnancy weight vs. documented pre-pregnancy weight and self-reported delivery weight vs. documented delivery weight. Using documented pre-pregnancy weight and documented delivery weight, we calculated gestational weight gain (GWG) relative to IOM criteria.
  
  
  RESULTS
  Self-reported pre-pregnancy weight was 2.94 kg less than documented pre-pregnancy weight (p < 0.0001). Self-reported BMI was 1.11 mg/kg(2) less than documented BMI (p < 0.0001). Self-reported GWG was 3.01 kg greater than documented GWG (p < 0.0001). Ninety-eight percent of normal weight correctly classified pregravid BMI in contrast to 86% of obese (p < 0.005) and 73% of overweight (p < 0.001).
  
  
  CONCLUSIONS
  Overweight and obese women underestimated self-reported pre-pregnancy weight & overestimated GWG, thereby mistakenly categorizing IOM guidelines.
authors: Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, MetroHealth Medical Center, Case Western Reserve University School of Medicine, Cleveland, OH, USA. amandujano@metrohealth.org
authors: Alicia
authors: A
authors: Mandujano
authors: Larraine
authors: L
authors: Huston-Presley
authors: Thaddeus P
authors: TP
authors: Waters
authors: Patrick M
authors: PM
authors: Catalano
mesh_terms: D000293:Adolescent; D000328:Adult; D015992:Body Mass Index; D001835:Body Weight / Q000502:physiology; D036861:Delivery, Obstetric / Q000706:statistics & numerical data; D005260:Female; D006801:Humans; D011247:Pregnancy / Q000523:psychology; D037841:Pregnant People / Q000208:ethnology / Q000523:psychology; D015203:Reproducibility of Results; D012189:Retrospective Studies; D012650:Self Disclosure; D057566:Self Report / Q000592:standards; D015430:Weight Gain / Q000208:ethnology / Q000502:physiology; D055815:Young Adult