Table 1 Maternal, pregnancy, labour and delivery characteristics and neonatal outcomes in different types of labour analgesiaData are expressed as mean (standard deviation), median (IQR) or number (percent)

Maternal characteristics*

Age (years)

27.12(+/- 5.44)

26.99(+/- 5.23)

28.54(+/- 5.17)

<0.01 (0.0005)

Height (cm)

161.9(+/- 6.38)

162.5(+/- 6.23)

162.6(+/- 6.21)

<0.01(0.006)

Weight (Kg)

64.10(+/-13.37)

63.00(+/-12.58)

62.40(+/-11.93)

<0.01(0.008)

Pregnancy

characteristics*

Primiparas

9457(74.7%)

18882(55.9%)

7190(26.7%)

<0.01(0.0008)

Gestational age (weeks)

39.64(+/-1.87)

39.44(+/- 2.24)

38.85(+/-2.32)

<0.01(0.005)

Complications

5447(43.03%)

9481(28.03%)

4502(16.69%)

<0.01(0.0001)

   • Pre-eclampsia

750 (5.9%)

744 (2.2%)

355 (1.3%)

   • APH

1259(9.95%)

3219(9.52%)

2016(7.47%)

Labour and delivery

characteristics*

Induced labour

5404(42.69%)

9975(29.49%)

4549(16.86%)

<0.01(0.0005)

Duration of labour (hrs)

31.1(+/- 6.3)

20.6(+/- 5.2)

13.6(+/-4.4)

<0.01(0.0008)

Instrumental delivery

5461(43.15%)

4879(14.43%)

1746(6.48%)

<0.01(0.0001)

Caesarean section

3687(29.13%)

5384(15.92%)

1971(7.31%)

<0.01(0.0006)

Neonatal Outcomes*

Stillbirth rate

41(0.32%)

351(1.03%)

106(0.39%)

<0.01(0.005)

Neonatal death rate

27(0.56%)

103(1.35%)

137(0.50%)

<0.01(0.001)

Apgar (1 min) 7 or less

59(9.75%)

108(13.52%)

70(5.13%)

<0.01(0.005)

Apgar (5 min) 7 or less

148(1.14%)

807(2.37%)

350(1.29%)

<0.01(0.007)

Weight of baby (g)

3439.2(+/- 577.9)

3364.4 (+/- 584.1)

3360.5 (+/-607.2)

<0.01(0.008)