title: Health Care Consumption during Pregnancy in relation to Maternal Body Mass Index: A Swedish Population Based Observational Study.
abstract: OBJECTIVE
  To assess whether antenatal health care consumption is associated with maternal body mass index (BMI).
  
  
  METHODS
  A register based observational study.
  
  
  METHODS
  The Swedish Medical Birth Register, the Maternal Health Care Register, and the Inpatient Register were used to determine antenatal health care consumption according to BMI categories for primiparous women with singleton pregnancies, from 2006 to 2008, n = 71,638. Pairwise comparisons among BMI groups are obtained post hoc by Tukey HSD test.
  
  
  RESULTS
  Obese women were more often admitted for in-patient care (p < 0.001), had longer antenatal hospital stays (p < 0.001), and were more often sick-listed by an obstetrician (p < 0.001) during their pregnancy, compared to women with normal weight women. Preeclampsia was more than four times as common, hypertension five times as common, and gestational diabetes 11 times as common when comparing in-patient care, obese to normal weight women (p < 0.001 for all comparisons). Underweight mothers had longer stay in hospitals (p < 0.05) and hydronephrosis and hyperemesis gravidarum were more than twice as common (both p < 0.001).
  
  
  CONCLUSIONS
  Obese and underweight mothers consumed significantly more health care resources and obese women were significantly more often sick-listed during their pregnancy when compared to pregnant women of normal weight.
authors.affiliation: Division of Obstetrics and Gynecology, Department of Clinical Science, Karolinska Institutet, 171 77 Stockholm, Sweden.
authors.forename: Elisabeth S
authors.initials: ES
authors.lastname: Lindholm
authors.affiliation: Division of Obstetrics and Gynecology, Department of Clinical Science, Karolinska Institutet, 171 77 Stockholm, Sweden.
authors.forename: Daniel
authors.initials: D
authors.lastname: Altman
authors.affiliation: Division of Obstetrics and Gynecology, Department of Clinical Science, Karolinska Institutet, 171 77 Stockholm, Sweden.
authors.forename: Margareta
authors.initials: M
authors.lastname: Norman
authors.affiliation: Department of Obstetrics and Gynecology and Department of Clinical and Experimental Medicine, Linköping University, 581 83 Linköping, Sweden.
authors.forename: Marie
authors.identifier: 0000-0003-4679-550X
authors.initials: M
authors.lastname: Blomberg
mesh_terms: D000328:Adult; D015992:Body Mass Index; D016640:Diabetes, Gestational / Q000453:epidemiology / Q000209:etiology / Q000628:therapy*; D005260:Female; D006801:Humans; D046110:Hypertension, Pregnancy-Induced / Q000453:epidemiology / Q000209:etiology / Q000628:therapy*; D007902:Length of Stay / Q000706:statistics & numerical data; D008427:Maternal Health Services / Q000191:economics / Q000706:statistics & numerical data*; D050177:Overweight / Q000150:complications* / Q000191:economics / Q000453:epidemiology; D011225:Pre-Eclampsia / Q000453:epidemiology / Q000209:etiology / Q000628:therapy*; D011247:Pregnancy; D037841:Pregnant People; D013548:Sweden / Q000453:epidemiology; D013851:Thinness / Q000150:complications* / Q000191:economics / Q000453:epidemiology