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. 2010 Aug 20;13(1):35–41. doi: 10.1111/j.1751-7176.2010.00366.x

Table III.

 Comparison Between Prepregnancy BMI Groups

Variable BMI <18.5 (n=188) BMI 18.5–25 (n=1916) BMI >25–30 (n=600) BMI >30 (n=320)
Systolic BP z score 0.219 (−0.45, 1.15)a 0.352 (−0.36, 1.12) 0.645 (−0.09, 1.44) 0.563 (−0.24, 1.44)
Diastolic BP z score 0.238 (−0.30, 0.92) 0.302 (−0.31, 0.89) 0.436 (−0.10, 0.10) 0.408 (−0.17, 1.02)

Abbreviation: BMI, body mass index. a(25%, 75%). Analysis of variance (ANOVA) Kruskal–Wallis P value for systolic blood pressure (BP) z score <.0001 and for diastolic BP z score=.0005.