title: Roll-over test in primigravidae attending a public primary care service.
abstract: OBJECTIVE
  To determine the roll-over test (ROT) performance in predicting pregnancy-induced hypertension (PIH) in primigravidae aged 15-29 years in a public primary care service.
  
  
  METHODS
  Prospective cohort study enrolling 369 consecutive and initially normotensive primigravidae. The ROT was applied within 28-32 weeks of pregnancy. PIH was defined as diastolic blood pressure (DBP) 90 mm Hg or systolic blood pressure (SBP) 140 mm Hg, or a rise in DBP 15 mm Hg or a rise in SBP 30 mm Hg. The ROT prognostic properties were calculated, and a receiver operating characteristic (ROC) curve was constructed.
  
  
  RESULTS
  For the 20 mm Hg cutoff point, sensitivity was 20% and specificity was 93%. Positive and negative predictive values were, respectively, 23% and 92%, for a PIH cumulative incidence of 9.5%. With other cutoff points, the ROC curve showed a poor discriminatory value of the test.
  
  
  CONCLUSIONS
  The ROT was not useful for predicting PIH in a primary prenatal care setting.
authors.affiliation: Division of Epidemiology, Federal University of São Paulo, Brazil.
authors.forename: L F
authors.initials: LF
authors.lastname: Marcopito
mesh_terms: D000293:Adolescent; D000328:Adult; D001795:Blood Pressure Determination / Q000379:methods; D005260:Female; D006801:Humans; D006973:Hypertension / Q000175:diagnosis / Q000517:prevention & control*; D010298:Parity; D011237:Predictive Value of Tests; D011247:Pregnancy; D011249:Pregnancy Complications, Cardiovascular / Q000175:diagnosis / Q000517:prevention & control*; D011295:Prenatal Care; D011446:Prospective Studies; D012680:Sensitivity and Specificity