早发型(n = 124)

晚发型(n = 70)

Z/X²

P值

胎龄(w)

33.64

31.785

−3.257

0.001

体重(g)

1700

1460

−2.470

0.014

PLT恢复时间(d)

7

6

−0.754

0.451

PLT最低值(10⁹/L)

111

119.5

−1.571

0.129

胎龄小于34w

64 (51.6%)

52 (72.8%)

8.365

0.004

贫血

42 (33.9%)

46 (65.7%)

18.305

0.000

凝血异常

33 (26.6%)

12 (17.1%)

2.252

0.133

出血表现

49 (39.5%)

34 (48.6%)

1.499

0.221

轻度出血

37 (29.8%)

30 (42.9%)

3.354

0.067

重度出血

12 (9.7%)

4 (5.7%)

0.479

0.489

死亡或放弃

15 (12.1%)

6 (8.6%)

0.576

0.448