title: Physical activity and hypertensive disorders of pregnancy among Hispanic women.
abstract: OBJECTIVE
  Prior studies of the association between physical activity and risk of hypertensive disorders of pregnancy have been conflicting, failed to assess total physical activity, and included few Hispanic women, the largest minority group in the United States with the highest birth rates.
  
  
  METHODS
  We examined this association among 1043 participants in the Latina Gestational Diabetes Mellitus Study, a prospective cohort of predominantly Puerto Rican prenatal care patients conducted from 2000 to 2004 in western Massachusetts. Physical activity before and in early pregnancy was assessed by bilingual interviewers using a modified version of the Kaiser Physical Activity Survey.
  
  
  RESULTS
  Fifty women (4.8%) were diagnosed with hypertensive disorders of pregnancy and 30 (2.9%) with preeclampsia. In multivariable analyses, there was a statistically significant trend of decreasing risk of hypertensive disorders with increasing sports/exercise in early pregnancy (P(trend) = 0.04). High levels of early pregnancy active living activity (odds ratio (OR) = 0.4, 95% confidence interval (CI) = 0.1-1.1, P(trend) = 0.07) and household/care giving activity (OR = 0.4, 95% CI = 0.1-1.3, P(trend) = 0.07) were associated with a 60% reduction in risk of hypertensive disorders relative to low levels; however, these associations were of marginal statistical significance. High levels of total physical activity (OR = 0.3, 95% CI = 0.1-1.0, P(trend) = 0.06) in early pregnancy were associated with a 70% reduction in the risk of hypertensive disorders relative to low levels; however, this association was also of marginal statistical significance. Prepregnancy physical activity was not associated with hypertensive disorders.
  
  
  CONCLUSIONS
  These results in a Hispanic population, although based on small numbers of cases, corroborate previous studies suggesting that recreational activity in early pregnancy reduces the risk of hypertensive disorders of pregnancy.
authors.affiliation: Division of Biostatistics and Epidemiology, Department of Public Health, University of Massachusetts Amherst, Amherst, MA, USA.
authors.forename: Renée Turzanski
authors.initials: RT
authors.lastname: Fortner
authors.forename: Penelope S
authors.initials: PS
authors.lastname: Pekow
authors.forename: Brian W
authors.initials: BW
authors.lastname: Whitcomb
authors.forename: Lynnette Leidy
authors.initials: LL
authors.lastname: Sievert
authors.forename: Glenn
authors.initials: G
authors.lastname: Markenson
authors.forename: Lisa
authors.initials: L
authors.lastname: Chasan-Taber
mesh_terms: D000293:Adolescent; D000328:Adult; D015331:Cohort Studies; D015444:Exercise / Q000502:physiology*; D005260:Female; D006630:Hispanic or Latino; D006801:Humans; D046110:Hypertension, Pregnancy-Induced / Q000208:ethnology / Q000517:prevention & control*; D008404:Massachusetts; D011225:Pre-Eclampsia; D011247:Pregnancy; D011248:Pregnancy Complications / Q000208:ethnology*; D011446:Prospective Studies; D011647:Puerto Rico / Q000208:ethnology; D040242:Risk Reduction Behavior; D055815:Young Adult