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Table 6 Maternal age related perinatal status, pregnancy co-morbidities and complications, fetal deaths/stillbirths and neonatal mortality in all births

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

Maternal age, years old

< 20

20–34

≥35

Total

Maternal age (years)

18.2 ± 1.0

26.2 ± 3.4

37.6 ± 2.6

26.9 ± 4.8

 > 9 years’ education

310 (15.7)

20,955 (40.1)

1474 (30.0)

22,739 (38.4)

All births, n (%)

1970 (3.3)

52,304 (88.4)

4916 (8.3)

59,190

Live births, n (%)

1963 (99.6)

52,166 (99.7)

4894 (99.6)

59,023 (99.7)

Males

1020 (51.8)

27,847 (53.2)

2629 (53.5)

31,496 (53.2)

Gestational age (weeks)

39.1 ± 1.7

39.1 ± 1.5

38.8 ± 1.7

39.1 ± 1.5

Birthweight (grams)

3333 ± 507

3448 ± 500

3496 ± 565

3448 ± 507

Preterm birth rate*

94 (4.8)

2006 (3.8)

304 (6.2)

2404 (4.1)

LBW*

87 (4.4)

1435 (2.7)

173 (3.5)

1695 (2.9)

Multi-birth

39 (2.0)

1122 (2.1)

89 (1.8)

1250 (2.1)

Congenital anomaliesa

13 (0.7)

280 (0.5)

31 (0.6)

324 (0.5)

Cesarean delivery*

911 (46.2)

28,250 (54.0)

3065 (62.3)

32,226 (54.4)

Pregnancy complications*

275 (14.0)

7231 (13.8)

822 (16.7)

8328 (14.1)

 HDP*

20 (1.0)

750 (1.4)

120 (2.4)

890 (1.5)

 PROM

162 (8.2)

4637 (8.9)

463 (9.4)

0.245

 GDM*

14 (0.7)

748 (1.4)

142 (2.9)

904 (1.5)

 Anemia*

141 (7.2)

3894 (7.4)

449 (9.1)

4484 (7.6)

Antenatal steroidsf

27 (30.0)

706 (36.8)

111(37.6)

844 (36.6)

Amniotic fluid volume*

 Normal

1638 (83.1)

44,577 (85.2)

4146 (84.3)

50,361 (85.1)

 Polyhydramnios

141 (7.2)

3674 (7.0)

373 (7.6)

4188 (7.1)

 Oligohydramnios

191 (9.7)

4054 (7.8)

397 (8.1)

4642 (7.8)

Amniotic contamination

 Normal

1666 (84.6)

45,194 (86.4)

4211 (85.7)

51,071 (86.3)

 Grade I

111 (5.6)

2555 (4.9)

258 (5.2)

2924 (4.9)

 Grade II

89 (4.5)

1962 (3.8)

171 (3.5)

2222 (3.8)

 Grade III

104 (5.3)

2593 (5.0)

276 (5.6)

2973 (5.0)

Apgar score

 1-min ≤7*

76 (3.9)

1320 (2.5)

175 (3.6)

1571 (2.7)

 1-min ≤3*

15 (0.8)

284 (0.5)

48 (1.0)

347 (0.6)

 5-min ≤7**

25 (1.3)

463 (0.9)

66 (1.3)

554 (0.9)

 5-min ≤3**

10 (0.5)

248 (0.5)

35 (0.7)

293 (0.5)

Fetal deaths/stillbirths

7 (0.4)

138 (0.3)

22 (0.4)

167 (0.3)

Deaths at deliveryb

7 (0.4)

168 (0.3)

23 (0.5)

198 (0.3)

Hospitalized on day 1*

125 (6.3)

2785 (5.3)

354 (7.2)

3265 (5.5)

Early neonatal deathsc

4 (0.2)

123 (0.2)

12 (0.2)

139 (0.2)

Late neonatal deathsd

0

36 (0.1)

5(0.1)

41 (0.1)

All deathse

11 (0.6)

308 (0.6)

39 (0.8)

358 (0.6)

  1. Values are given in numbers and percentage (% of live births in each maternal age category) or mean ± SD
  2. Abbreviations: LBW Low birth weight (< 2500 g), HDP Hypertensive disorders of pregnancy, PROM Premature rupture of membrane, GDM Gestational diabetes mellitus
  3. *Percentage of the total number of all live birth (p < 0.001)
  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 all fetal deaths/stillbirth and all neonatal deaths
  9. fData contain all premature babies received antenatal corticosteroid therapy before delivery
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BMC Pregnancy and Childbirth

ISSN: 1471-2393

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