Table 2.
Clinical characteristics based on the platelet count levels
| Normal (n = 189) |
Mild (n = 51) |
Severe (n = 24) |
P1 | P2 | P3 | |
|---|---|---|---|---|---|---|
| Maternal Age (y.o)a | 33.9 ± 5.2 | 34.5 ± 5.1 | 35.7 ± 4.8 | 1.000 | 0.333 | 1.000 |
| Primiparab | 115 (61.2) | 33 (64.7) | 15 (62.5) | 1.000 | 1.000 | 1.000 |
| Previous history of pre-eclampsiab | 19 (10.1) | 3 (5.9) | 1 (4.2) | 1.000 | 1.000 | 1.000 |
| Low-dose aspirin for preventionb | 2 (1.1) | 2 (3.9) | 1 (4.2) | 0.597 | 0.605 | 1.000 |
| Cesarean deliveryb | 146 (77.3) | 41 (82.0) | 22 (91.7) | 0.565 | 0.355 | 0.565 |
a: mean ± standard deviation, statistical significance was calculated with analysis of variance and multiple comparison was conducted with Bonferroni method
b: n (%), statistical significance was calculated with Fisher’s exact test and multiple comparison was conducted with Hochberg method
Normal, platelet count ≥ 150 × 109/L; Mild, platelet count < 150 × 109/L and ≥ 100 × 109/L; Severe, < 100 × 109/L
P1 normal versus mild; P2 normal versus severe, P3 mild versus severe