Table 1.
Comparison of general information between the preeclampsia group and healthy group (x̅±sd, n (%))
| Factor | Preeclampsia group (n=565) | Healthy group (n=4435) | χ2/t | P | |
|---|---|---|---|---|---|
| Age (years old) | <35 | 396 (70.09) | 3902 (87.98) | 132.953 | <0.001 |
| ≥35 | 169 (29.91) | 533 (12.02) | |||
| Pregnancy times | 1 time | 186 (32.92) | 1,672 (37.70) | 5.909 | 0.052 |
| 2 times | 170 (30.09) | 1,313 (29.61) | |||
| ≥3 times | 209 (36.99) | 1,450 (32.69) | |||
| Labor times | 0 time | 315 (55.75) | 2,561 (57.75) | 0.901 | 0.637 |
| 1 time | 209 (36.99) | 1,553 (35.02) | |||
| ≥2 times | 41 (7.26) | 321 (7.24) | |||
| Gestational weeks | 14.3±0.7 | 14.2±0.6 | 0.718 | 0.473 | |
| BMI increase (kg/m2) | 6.03±1.55 | 5.34±1.53 | 10.081 | <0.001 | |
Note: BMI: body mass index.