Timing of conception

Before the disaster

After the disaster

9 - 7 months

n = 2097

6 - 4 months

n = 2528

≤3 months

n = 2428

≤3 months

n = 1728

4 - 6 months

n = 1647

7 - 9 months

n = 1872

p

The number of delivery and abortion before the disaster

217

12

4

0

0

0

Delivery mode

Spontaneous cephalic

1421 (69.6)

1692 (68.3)

1628 (68.7)

1153 (68.5)

1052 (67.4)

1190 (66.9)

0.579

Instrumental

205 (10.0)

245 (9.9)

273 (11.5)

165 (9.8)

179 (11.5)

212 (11.9)

0.094

Cesarean

417 (20.4)

540 (21.8)

470 (19.8)

365 (21.7)

330 (21.1)

376 (21.1)

0.566

Unknown/missing

54

51

57

45

86

94

Preterm birth

<28 weeks

2 (0.10)

8 (0.32)

5 (0.21)

8 (0.47)

5 (0.31)

6 (0.32)

0.364

<34 weeks

13 (0.62)

30 (1.19)

23 (0.96)

26 (1.52)

23 (1.41)

17 (0.91)

0.078

<37 weeks

90 (4.30)

119 (4.73)

99 (4.13)

94 (5.48)

105 (6.42)*

86 (4.63)

0.013

Unknown/missing

0

0

0

0

0

0

Infants

n = 2108

n = 2539

n = 2417

n = 1731

n = 1650

n = 1877

p

The number of the birth before the disaster

214

0

0

0

0

0

Birthweight (g ± SD)

3008 ± 396

3012 ± 428

3028 ± 415

2978 ± 448*

2982 ± 438*

2997 ± 433

0.001

<1000 g

1 (0.05)

9 (0.36)

5 (0.21)

8 (0.47)

7 (0.43)

7 (0.38)

0.148

<1500 g

7 (0.34)

16 (0.64)

11 (0.46)

20 (1.16)**

15 (0.92)

11 (0.59)

0.02

<2500 g

185 (8.87)

229 (9.1)

187 (7.78)

185 (10.76)*

160 (9.82)

175 (9.42)

0.036

Unknown/missing

23

22

14

11

20

19

Congenital anomalies

52 (2.56)

60 (2.45)

73 (3.16)

46 (2.75)

42 (2.6)

45 (2.46)

0.693

Unknown/missing

74

95

105

57

33

45

Bodyweight at a month old (g ± SD)

4224 ± 574

4243 ± 598

4226 ± 572

4128 ± 602^†

4176 ± 594^‡

4225 ± 603

<0.001

Unknown/missing

24

24

24

122

22

22