title: Association between Parity and Blood Pressure in Korean Women: Korean National Health and Nutrition Examination Survey, 2010-2012.
abstract: BACKGROUND
  Pregnancy considerably alters cardiovascular dynamics, and thereby affects the transition of blood pressure after delivery in women. We aimed to analyze the association between parity and blood pressure in Korean adult women.
  
  
  METHODS
  We included 8,890 women who participated in Korean National Health and Nutrition Examination Survey between 2010 and 2012. We divided the population according to the menopause status and analyzed the association between parity and blood pressure by using multiple regression analysis, and on hypertension, by using logistic regression analysis.
  
  
  RESULTS
  Systolic and diastolic blood pressures were significantly associated with parity in premenopausal women (β=-0.091 [P<0.001] and β=-0.069 [P<0.001], respectively). In the analysis that excluded women receiving antihypertensive medication, the systolic and diastolic blood pressure of postmenopausal women were significantly associated with parity (β=-0.059 [P=0.022] and β=-0.054 [P=0.044], respectively). Parity was found to prevent hypertension after adjustment for confounders in postmenopausal women (odds ratio, 0.55; 95% confidence interval, 0.310-0.985).
  
  
  CONCLUSIONS
  We found that parity prevented hypertension in Korean women.
authors.affiliation: Department of Family Medicine, Inha University School of Medicine, Incheon, Korea.
authors.forename: Miae
authors.initials: M
authors.lastname: Jang
authors.affiliation: Department of Family Medicine, Inha University School of Medicine, Incheon, Korea.
authors.forename: Yeonji
authors.initials: Y
authors.lastname: Lee
authors.affiliation: Department of Family Medicine, Inha University School of Medicine, Incheon, Korea.
authors.forename: Jiho
authors.initials: J
authors.lastname: Choi
authors.affiliation: Department of Family Medicine, Inha University School of Medicine, Incheon, Korea.
authors.forename: Beomseok
authors.initials: B
authors.lastname: Kim
authors.affiliation: Department of Family Medicine, Inha University School of Medicine, Incheon, Korea.
authors.forename: Jayeon
authors.initials: J
authors.lastname: Kang
authors.affiliation: Department of Family Medicine, Inha University School of Medicine, Incheon, Korea.
authors.forename: Yongchae
authors.initials: Y
authors.lastname: Kim
authors.affiliation: Department of Family Medicine, Inha University School of Medicine, Incheon, Korea.
authors.forename: Sewook
authors.initials: S
authors.lastname: Cho
keywords: Blood Pressure; Hypertension; Menopause; Parity