胎龄(周)^a

126

29.65 ± 1.52

29.91 ± 1.56

29.66 ± 1.31

0.458

0.634

<28周

19

11 (57.90)

7 (36.84)

1 (5.26)

4.600

0.320^*

28~29⁺⁶周

37

20 (54.06)

12 (32.43)

5 (13.51)

30~31⁺⁶周

70

38 (54.29)

29 (41.42)

3 (4.29)

出生体重^a

126

1140.58 ± 257.304

1315.19 ± 339.550

1343.33 ± 252.438

0.405

0.078

<1000 g

39

28 (71.79)

11 (28.21)

0

7.113

0.270^*

1000 g~1499 g

65

36 (55.39)

23 (35.38)

6 (9.23)

1500 g~1999 g

20

5 (25.00)

12 (60.00)

3 (15.00)

>2000 g

2

0

2 (100.00)

0

头围(cm)^a

126

26.44 ± 2.04

27.52 ± 2.35

27.56 ± 2.01

1.909

0.163

身长(cm)^a

126

36.12 ± 2.91

37.67 ± 3.11

37.78 ± 1.99

1.446

0.174

分娩方式

顺产

25

10 (40.00)

13 (52.00)

2 (8.00)

2.995

0.226^*

剖宫产

101

59 (58.42)

35 (34.65)

7 (6.93)