Table 1.
Baseline characteristics and pregnancy outcomes among preeclamptic cases and normotensive controls
| Variable | Controls N=432 |
All Cases N=216 |
a Effect estimates, 95% confidence intervals and p-values |
|---|---|---|---|
|
| |||
| %(n) | %(n) | ||
|
| |||
| Maternal Age | |||
| Median (IQR) | 20.0 (5.0) | 19.0 (5.0) | β = −0.07, p=0.0009 |
|
| |||
| Marital Status | |||
| Married | 335 (77.5) | 143 (66.2) | Reference |
| Single | 97 (22.5) | 73 (33.8) | 1.8 (1.2 – 2.5) |
|
| |||
| Socio - economic status | |||
| Low | 115 (26.9) | 91 (42.5) | 3.7 (2.2 – 6.4) |
| Mid | 213 (49.9) | 102 (47.7) | 2.3 (1.3 – 3.8) |
| High | 99 (23.2) | 21 (9.8) | Reference |
|
| |||
| Maternal race | |||
| White | 274 (63.6) | 125 (57.9) | Reference |
| Non-white | 157 (36.4) | 91 (42.1) | 1.3 (0.9 – 1.8) |
|
| |||
| Smoking status | |||
| Non-smoker | 247 (57.2) | 147 (68.1) | Reference |
| Smoker | 185 (42.8) | 69 (31.9) | 0.6 (0.4 – 0.9) |
|
| |||
| Body mass index | |||
| Median (IQR) | 20.8 (3.2) | 21.3 (4.0) | β = 0.09, p=0.0035 |
|
| |||
| PTB <37 wks | |||
| No | 376 (87.7) | 178 (84.4) | Reference |
| Yes | 53 (12.3) | 33 (15.6) | 1.3 (0.8 – 2.1) |
|
| |||
| PTB <34 wks | |||
| No | 408 (95.1) | 198 (93.8) | Reference |
| Yes | 21 (4.9) | 13 (6.2) | 1.3 (0.6 – 2.6) |
|
| |||
| Fetal Sex | |||
| Male | 221 (51.2) | 102 (47.2) | 1.2 (0.8 – 1.6) |
| Female | 211 (48.8) | 114 (52.8) | Reference |
|
| |||
| SGA 5th percentile | |||
| No | 382 (91.4) | 171 (84.7) | Reference |
| Yes | 36 (8.6) | 31 (15.3) | 1.9 (1.2 – 3.2) |
|
| |||
| SGA 10th percentile | |||
| No | 339 (81.1) | 153 (75.7) | Reference |
| Yes | 79 (18.9) | 49 (24.3) | 1.4 (0.9 – 2.1) |
a
Determined by logistic regression. Continuous variables display β, and binary or categorical variables odds ratios.