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Table 1 Comparison of all births, pregnancy co-morbidity and complications, and fetal and neonatal deaths in different levels of hospitals in Huai’an in 2015

From: High risk pregnancy associated perinatal morbidity and mortality: a second birth population-based survey in Huai’an in 2015

Hospital level

I

II

III

Total

Number of hospitals

85

16

6

 

All births

17,991 (30.4)

23,758 (40.1)

17,441 (29.5)

59,190

Fetal deaths/stillbirths

9 (0.1)

78 (0.3)

80 (0.5)

167 (0.28)

Live births

17,982 (99.9)

23,680 (99.7)

17,361 (99.5)

59,023 (99.7)

Males*

9959 (55.4)

12,278 (51.7)

9259 (53.1)

31,496 (53.2)

Gestational age (weeks)*

39.3 ± 1.1

39.2 ± 1.3

38.7 ± 2.0

39.1 ± 1.5

Birthweight (grams)*

3480 ± 456

3465 ± 476

3392 ± 587

3448 ± 507

Preterm births*

111 (0.6)

639 (2.7)

1654 (9.5)

2404 (4.06)

Low birthweight*

179 (1.0)

437 (1.8)

1079 (6.2)

1695 (2.9)

Multiple-births*

101 (0.6)

426 (1.8)

723 (4.1)

1250 (2.1)

Congenital anomaliesa*

80 (0.4)

165 (0.7)

79 (0.5)

324 (0.55)

Cesarean delivery*

9265 (51.5)

13,778 (58.0)

9183 (52.7)

32,226 (54.4)

Pregnancy complications*

2322 (12.9)

2331 (9.8)

3675 (21.1)

8328 (14.1)

 HDP*

541 (3.0)

1155 (4.9)

1224 (7.0)

2920 (4.9)

 PROM*

773 (4.3)

2303 (9.7)

2191 (12.6)

5267 (8.9)

 GDM

62 (0.3)

112 (0.5)

730 (4.2)

904 (1.5)

 Anemia*

1116 (6.2)

1096 (4.6)

2272 (13.0)

4484 (7.6)

Antenatal steroids*f

17 (17.3)

189 (31.0)

638 (39.9)

844 (36.6)

Maternal age*, years

26.6 ± 5.0

26.8 ± 4.7

27.4 ± 4.8

26.9 ± 4.8

 Delayed childbearing*

1428 (7.9)

1842 (7.8)

1646 (9.4)

4916 (8.3)

 > 9 years’ education*

1967 (10.9)

8926 (37.6)

11,846 (67.9)

22,739 (38.4)

Amniotic fluid volume*

 Normal

15,125 (84.1)

20,697 (87.1)

14,539 (83.4)

50,361 (85.1)

 Polyhydramnios

1603 (8.9)

865 (3.6)

1720 (9.9)

4188 (7.1)

 Oligohydramnios

1263 (7.0)

2196 (9.2)

1182 (6.8)

4641 (7.8)

Amniotic contamination*

 Normal

15,847 (88.1)

19,808 (83.4)

15,416 (88.4)

51,071 (86.3)

 Grade I

1080 (6.0)

1464 (6.2)

380 (2.2)

2924 (4.9)

 Grade II

623 (3.5)

1214 (5.1)

385 (2.2)

2222 (3.8)

 Grade III

441 (2.5)

1272 (5.4)

1260 (7.2)

2973 (5.0)

Apgar score

 1-min ≤7*

181 (1.0)

533 (2.2)

857 (4.9)

1571 (2.7)

 1-min ≤3*

36 (0.2)

156 (0.7)

155 (0.9)

347 (0.6)

 5-min ≤7*

68 (0.4)

199 (0.8)

287 (1.6)

554 (0.9)

 5-min ≤3*

44 (0.2)

126 (0.5)

123 (0.7)

293 (0.5)

Deaths at deliveryb*

12 (0.1)

88 (0.4)

98 (0.6)

198 (0.3)

Hospitalized on day 1*

0

1162 (4.9)

2103 (12.1)

3265 (5.7)

Early neonatal deathsc*

21 (0.1)

40 (0.2)

78 (0.4)

139 (0.2)

Late neonatal deathsd*

6 (0.03)

10 (0.04)

25 (0.1)

41 (0.1)

All deathse*

37 (0.2)

131 (0.6)

190 (1.1)

358 (0.6)

Perinatal mortality*, n (‰)

30 (1.6)

118 (5.0)

158 (9.1)

306 (5.2)

Neonatal mortality*, n (‰)

27 (1.5)

50 (2.1)

103 (5.9)

180 (3.0)

  1. All values are given in numbers and percentage (% of all births in each hospital level category) or means ± SD
  2. Abbreviations: HDP Hypertensive disorders of pregnancy, including hypertension, eclampsia and preeclampsia, PROM Premature rupture of membrane, including 12.9% as preterm births, GDM Gestational diabetes mellitus, including pre-pregnancy DM
  3. *P < 0.01 for between-group differences
  4. aIncluding all birth defects and congenital disorders from total births within 7 postnatal days
  5. bIncluding fetal deaths/stillbirth and neonatal deaths immediately at delivery but counted as live births
  6. cIncluding live births died in the first 7 days
  7. dIncluding live births died in the 8 to 28 days after delivery
  8. eIncluding fetal deaths/stillbirth and live births deaths after birth. Perinatal mortality includes all fetal deaths/stillbirth from 22 complete gestational week and neonatal deaths in the first 7 postnatal days in reference to total births. Neonatal mortality includes all deaths of live birth in 0–28 postnatal days in reference to the total live births
  9. fData contained cases referenced to total preterm births (n = 2404)