Table 3.
Stepwise logistic regression model AUROC values and 95% confidence intervals for the association between baseline and admission characteristics and the three principle outcomes (eclampsia, kidney injury and perinatal death)*
| Predictors | Eclampsia |
Kidney injury |
Perinatal death |
|||
|---|---|---|---|---|---|---|
|
Total number of women |
1460 |
1459 |
1500 |
|||
|
AUROC |
95% CI |
AUROC |
95% CI |
AUROC |
95% CI |
|
| Prediction model |
0.79 |
0.75, 0.83 |
0.68 |
0.64, 0.72 |
0.81 |
0.79, 0.84 |
| Advanced maternal age |
0.76 ↓ |
0.71, 0.80 |
0.52 |
0.48, 0.56 |
0.46 |
0.43, 0.50 |
| High Body mass index |
0.64 ↓ |
0.59, 0.69 |
0.46 |
0.42, 0.50 |
0.50 |
0.46, 0.54 |
| Multiparity |
0.67 ↓ |
0.63, 0.71 |
0.53 |
0.50, 0.56 |
0.56 |
0.53, 0.58 |
| Low gestation at admission |
0.59 |
0.54, 0.64 |
0.58 |
0.54, 0.62 |
0.81 |
0.77, 0.84 |
| High admission systolic BP |
0.52 |
0.47, 0.58 |
0.55 |
0.51, 0.59 |
0.52 |
0.49, 0.56 |
| High admission diastolic BP |
0.53 |
0.47, 0.58 |
0.57 |
0.53, 0.62 |
0.51 |
0.47, 0.55 |
| High highest systolic BP |
0.54 |
0.49, 0.59 |
0.64 |
0.60, 0.68 |
0.46 |
0.42, 0.50 |
| High diastolic BP at highest systolic BP |
0.51 |
0.46, 0.57 |
0.59 |
0.55, 0.63 |
0.48 |
0.44, 0.52 |
| High admission dipstick proteinuria | 0.59 | 0.54, 0.64 | 0.59 | 0.56, 0.63 | 0.54 | 0.51, 0.58 |
CI – confidence interval, AUROC – area under the receiver operating characteristic curve
*Most important characteristic for each outcome shown in bold. Direction of association as stated in first column, unless an arrow present (↓), indicating association in opposite direction