Skip to main content
. Author manuscript; available in PMC: 2019 May 1.
Published in final edited form as: Hypertension. 2018 Apr 2;71(5):904–910. doi: 10.1161/HYPERTENSIONAHA.117.10705

Table 4.

Preconception blood pressure and pregnancy loss and live birth; Competing risks analysis

Variable Cause specific hazards Subdistribution hazards
Pregnancy Loss Live birth Pregnancy Loss Live birth
HR (95% CI) HR (95% CI) HR (95% CI) HR (95% CI)
Systolic blood pressure (10 mmHg)
 Unadjusted 1.08 (0.96–1.21) 0.98 (0.92–1.05) 1.07 (0.95–1.20) 0.91 (0.86–0.98)
 Adjusted* 1.09 (0.95–1.24) 0.99 (0.92–1.07) 1.08 (0.95–1.24) 0.95 (0.88–1.02)
Diastolic blood pressure (10 mmHg)
 Unadjusted 1.17 (1.00–1.36) 0.96 (0.88–1.04) 1.15 (0.99–1.34) 0.86 (0.79–0.94)
 Adjusted* 1.16 (0.98–1.37) 0.96 (0.88–1.06) 1.14 (0.97–1.35) 0.93 (0.84–1.02)
Mean arterial pressure (10 mmHg)
 Unadjusted 1.15 (0.99–1.34) 0.96 (0.89–1.05) 1.13 (0.97–1.32) 0.87 (0.80–0.94)
 Adjusted* 1.15 (0.98–1.36) 0.97 (0.88–1.07) 1.14 (0.96–1.35) 0.92 (0.84–1.01)
*

Adjusted for treatment assignment, age, BMI, race (white vs. non-white), marital status (married, living as married, other), cigarette smoking, parity and time from last pregnancy loss to enrollment (≤4 months, 5–8 months, 9–12 months, >12 months)