Table 1.
Demographics
| Demographics | Normotensive at 1 year postpartuma | Hypertensive at 1 year postpartumb | p-Valuec |
|---|---|---|---|
| n = 84 | n = 70 | - | |
| Age at deliveryd | 30.0 ± 5.5 | 31.8 ± 4.7 | 0.04 |
| Self-reported race | |||
| White | 76 (90%) | 51 (73%) | – |
| Black | 8 (10%) | 17 (24%) | 0.01 |
| None of the above | 0 (0%) | 2 (3%) | – |
| Median BMI prepregnancy (kg/m2)e | 29.2 [IQR 25.7–33.1] | 31.7 [IQR 28.2–36.5] | <0.01 |
| Median BMI 1 year postpartum (kg/m2)e | 29.8 [IQR 26.0–35.3] | 33.0 [IQR 29.1–40.2] | <0.01 |
| Multiparous | 28 (34%) | 35 (51%) | 0.03 |
| Median gestational age at delivery (weeks)e | 38.0 [IQR 37.0–39.4] | 37.3 [IQR 36.6–38.4] | 0.04 |
| Preterm | 19 (23%) | 20 (29%) | 0.37 |
| Type of HDP | |||
| Gestational hypertension | 28 (33%) | 21 (30%) | 0.68 |
| Preeclampsia without severe features | 27 (32%) | 20 (29%) | |
| Preeclampsia with severe features | 29 (35%) | 29 (41%) | |
| Mean systolic BP at 1 year postpartumd | 112.8 ± 7.3 | 127.2 ± 9.9 | <0.01 |
| Mean diastolic BP at 1 year postpartumd | 72.5 ± 5.6 | 85.7 ± 6.3 | <0.01 |
| Antihypertensive medications at 1 year postpartum | 0 (0%) | 10 (14%) | <0.01 |
| Median birthweight (g)e | 3,080 [IQR 2,625–3,408] | 3,145 [IQR 2,590–3,490] | 0.59 |
| Small for gestational age | 12 (14%) | 7 (10%) | 0.42 |
| Infant sex | |||
| Female | 41 (49%) | 28 (41%) | 0.31 |
| Male | 43 (51%) | 41 (59%) | |
| Ever breastfed | 71 (86%) | 55 (82%) | 0.57 |
| History of smoking | 11 (13%) | 11 (16%) | 0.61 |
Abbreviations: BMI, body mass index; BP, blood pressure; HDP, hypertensive disorder of pregnancy.
a
Data are reported as n (%), unless otherwise indicated.
b
Mean systolic BP ≥ 130 mm Hg or mean diastolic BP ≥ 80 mm Hg over three measurements at rest, or requiring antihypertensive medication.
c
p-Values indicate the statistical testing result from two-sample t-tests for normally distributed continuous variables, Mann–Whitney U tests for non-normally distributed continuous variables, or Pearson’s chi-square for categorical variables.
d
Data are reported as mean ± standard deviation.
e
Data are reported as median [interquartile range].