组别

例数

剖宫产

[n(%)]

阴道分娩

[n(%)]

会阴侧切

[n(%)]

器械助产

[n(%)]

产程中转剖宫产[n(%)]

正常体重组

306

73 (23.86)

233 (76.14)

33 (14.2)

10 (4.3)

2 (0.9)

超重组

637

217 (34.07)^a

420 (65.93)^a

75 (17.9)

15 (4.7)

26 (5.8)^a

肥胖组

474

229 (48.31)^ab

245 (51.69)^ab

49 (20.0)

25 (10.2)^ab

37 (13.1)^ab

χ²

51.184

51.184

2.897

9.373

31.775

P

<0.001

<0.001

0.235

0.009

<0.001