title: The effect of family physician timing of maternal admission on procedures in labour and maternal and infant morbidity.
abstract: OBJECTIVE
  To determine if a family physician practice pattern of early admission is associated with increased rates of intervention in labour and delivery, and/or adverse maternal and newborn outcomes.
  
  
  METHODS
  A retrospective cohort study compared women under the care of family physicians having 50% or more of their patients admitted to the labour and delivery unit "early" (defined as a cervical dilatation of < or =3 cm) to women under the care of family physicians having less than 50% of their patients admitted "early." Outcome measures included labour intervention rates and maternal and neonatal morbidity.
  
  
  RESULTS
  After adjusting for maternal characteristics, care by family physicians with a practice of early admission was associated with increased rates of electronic fetal monitoring (odds ratio [OR], 1.55; 95% confidence interval [CI], 1.27-1.89), epidural analgesia (OR, 1.34; 95% CI, 1.15-1.55), and Caesarean section (OR, 1.33; 95% CI, 1.00-1.65) compared to family physicians with a practice pattern of late admission. Malposition in labour was associated with more interventions in labour than was family physician practice pattern.
  
  
  CONCLUSIONS
  Women under the care of family physicians with a practice pattern of early admission were more likely to receive electronic fetal monitoring, epidural analgesia, and Caesarean section than women under the care of family physicians with a practice pattern of late admission. Malposition in labour had a greater effect on procedure use than any other variable in our model.
authors.affiliation: Department of Family Practice, University of British Columbia, Vancouver, BC.
authors.forename: Michael C
authors.initials: MC
authors.lastname: Klein
authors.forename: Ann
authors.initials: A
authors.lastname: Kelly
authors.forename: Janusz
authors.initials: J
authors.lastname: Kaczorowski
authors.forename: Stefan
authors.initials: S
authors.lastname: Grzybowski
mesh_terms: D000328:Adult; D001955:British Columbia / Q000453:epidemiology; D015331:Cohort Studies; D036861:Delivery, Obstetric / Q000706:statistics & numerical data*; D005194:Family Practice / Q000379:methods* / Q000592:standards; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008499:Medical Records; D010343:Patient Admission / Q000706:statistics & numerical data*; D010818:Practice Patterns, Physicians' / Q000706:statistics & numerical data*; D011247:Pregnancy; D011256:Pregnancy Outcome; D011295:Prenatal Care / Q000706:statistics & numerical data*; D012189:Retrospective Studies; D013997:Time Factors