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Table 1 Background characteristics. Comparison of al included women for the in-depth analyses from the high- and low-volume months (250 vaginal births from each month and all caesarean sections). When comparing background characteristics between women with vaginal births and caesarean sections in each of the study months, no significant differences were found, and they are here presented together

From: Resilience to maintain quality of intrapartum care in war torn Yemen: a retrospective pre-post study evaluating effects of changing birth volumes in a congested frontline hospital

 

High-volume month

August 2017

Low-volume month November 2017

p-valuea

 

n (%)

n (%)

 

Of all women

(n = 358)

(n = 332)

 

Age

< 20 years old

25 (7.1)

29 (8.8)

I 0.801

20–29 years old

153 (43.2)

146 (44.2)

I

30–39 years old

158 (44.6)

138 (41.8)

I

≥ 40 years old

18 (5.1)

17 (5.2)

I

Information missing

4 (-)

2 (-)

 

Parity

0

140 (39.1)

106 (31.9)

I 0.064

1–4

161 (44.9)

178 (53.6)

I

≥ 5

57 (15.9)

48 (14.5)

I

Information missing

0 (-)

0 (-)

 

Singleton/multiple gestations

Singletons

351 (98.0)

324 (97.6)

I 0.683

Multiple gestations

7 (2.0)

8 (2.4)

I

Information missing

0 (-)

0 (-)

 

Gestational age

Extremely preterm (week 28–33)

19 (5.5)

18 (5.5)

I 0.182

Preterm (week 34–36)

27 (7.8)

42 (12.7)

I

Term (37–41 weeks)

291 (84.3)

265 (80.3)

I

Post term (≥ 42 weeks)

8 (2.3)

5 (1.5)

I

Information missing

13 (-)

2 (-)

 

Antenatal care

≥ 1 visit

137 (43.6)

152 (52.2)

I 0.034ψ

Not attended

177 (56.4)

139 (47.8)

I

Information missing

44 (-)

41 (-)

 

Obstetric risk factors in current pregnancy

Pre-eclampsia

34 (9.5)

30 (9.1)

I 0.478

Eclampsia

2 (0.6)

4 (1.2)

I

Premature rupture of membrane

38 (10.6)

52 (15.8)

I

Ante-partum haemorrhage

12 (3.4)

11 (3.3)

I

Fever

1 (0.3)

2 (0.6)

I

Otherb

27 (7.5)

23 (7.0)

I

None

244 (68.2)

208 (63.0)

I

Information missing

0 (-)

2 (-)

 

Of women with parity ≥ 1

(n = 218)

(n = 226)

 

Obstetric history

Previous death of child/childrenc

53 (26.5)

54 (24.5)

0.646

1 previous caesarean section

30 (13.8)

35 (15.5)

I 0.409

≥ 2 previous caesarean sections

22 (10.1)

15 (6.6)

I

Of all women

(n = 358)

(n = 332)

 

Progress on admission

Before active phase of labourd

60 (20.0)

55 (19.3)

I 0.683

First stage of active phase of labour

197 (65.7)

180 (63.6)

I

Second stage of labour

43 (14.3)

48 (17.0)

I

Information missing

58 (-)

49 (-)

Referrals after failed trial of labour at home

Referralse

24 (6.7)

25 (7.6)

I 0.665

  1. ψ p-value < 0.05
  2. aFisher exact test
  3. b Other obstetric risk factors: Polyhydramnios (23); Oligohydramnios (14); Suspected chorionamnitis (3); Foetal malformation (1); Bicorn uterus (1); Diabetes (3); Prolonged labour and haematuria prior to admission (1); Hypothyroidism (2); Anaemia (1); First twin delivered prior to admission second still intrauterine (1)
  4. cDocumentation was insufficient to differentiate perinatal deaths from deaths later in life
  5. dCervical dilation < 4 cm
  6. e30 of all 34 women with failed trial of labour at home (88.2%) had received unregulated oxytocin or misoprostol (15/49 missing information regarding prior augmentation)