. Author manuscript; available in PMC: 2018 Oct 1.

Published in final edited form as: Pregnancy Hypertens. 2017 Jul 24;10:177–181. doi: 10.1016/j.preghy.2017.07.142

Table 1.

Single variable comparison for the clinical characteristics of the PPPE cases and controls

	PPPE cases (n=43)	Controls (n=86)	Odds Ratio (95% CI)	p-value
Mean ± SD
Age at delivery (year)	32±6	31±6	1.096 (0.765, 1.570)	0.62
Parity	2.3±1.3	1.7±0.9	1.72 (1.16–2.55)	0.007
Pre-pregnancy/first trimester BMI (kg/m²)	30.0±6.1	24.4±6.2	1.17 (1.07–1.27)	0.0004
Gestational weight gain (lbs)	23±18	28±12	0.98 (0.95–1.00)	0.085
Gestational age at delivery (weeks)	39.2±1	39.5±1	0.77 (0.53–1.14)	0.195
N (%)
Black Race	16 (37)	11 (13)	4.22 (1.62–11)	0.003
Active smoking status	5 (12)	2 (2)	8.58 (0.98–74.91)	0.052
Gender of the baby (male)	23 (53)	43 (50)	1.2 (0.58–2.48)	0.623

CI: Confidence Interval