初次流产

二次流产

三次流产

χ²

p

生育否

未生育

197

(34.1%)

124

(29.7%)

42

(20.7%)

12.857

0.002

已生育

381

(65.9%)

293

(70.3%)

161

(79.3%)

年龄

≤20岁

23

(4.1%)

11

(2.6%)

3

(1.4%)

35.270

0.000

20~25

130

(23.1%)

72

(17.2%)

27

(12.4%)

26~30

171

(30.4%)

134

(32.1%)

56

(25.8%)

31~35岁

116

(20.6%)

108

(25.8%)

51

(23.5%)

36岁以上

123

(21.8%)

93

(22.2%)

80

(36.9%)