Table 2 Logistic regression analysis of prolonged latent phase of labor at Hawassa referral hospital/Ethiopia, January 2010-December 2011

Maternal age (years):

  20–34

47(90.4)

399(83.1)

1

1

  15–19

3(5.8)

46(9.6)

0.4(0.08–1.54)

0.3(0.06–1.38)

  35+

2(3.8)

35(7.3)

0.5(0.11–2.01)

0.9(0.17–5.23)

Residence:

  Urban

43(82.7)

305(63.5)

2.7 (1.31–3.76)**

2.0(0.88–4.73)

  Rural

9(17.3)

175(3.5)

1

1

Parity:

  Multiparous

9(17.3)

140(29.2)

1

1

  Grandmultiparous

2(3.8)

33(6.9)

0.5(0.23–1.02)

0.4(0.17–0.89)*

  Primiparous

41(78.9)

307(63.9)

0.5(0.11–1.96)

0.7(0.13–4.27)

Gestational age(weeks):

  37–41

36(69.2)

403(84.0)

1

1

  28–36

1(1.9)

13(2.7)

0.9(0.13–6.77)

0.8(0.09–8.01)

  42+

15(28.9)

64(13.3)

2.6(1.36–5.06)**

2.3(1.07–4.96)**

Uterine contraction:

  Adequate

15(28.9)

243(50.6)

1

1

  Inadequate

37(71.1)

237(49.4)

2.5(1.35–4.73)**

2.3(1.15–4.68)*

Pelvic status:

  Adequate

44(84.6)

365(76.0)

1

1

  Contracted

3(5.8)

46(9.6)

0.5(0.16–1.81)

0.8(0.20–3.12)

  Unknown

5(9.6)

69(14.4)

0.6(0.23–1.65)

0.5(0.19–1.54)

Fetal membranes:

  Intact

34(65.4)

112(23.3)

7.8(3.96–5.27)^†

6.9(3.39–14.17)†

  PROM

5(9.6)

37(7.7)

5.6(1.21–10.67)*

4.5(1.42–14.19)*

  Ruptured during labor

13(25.0)

331(69.0)

1

1

Birth weight (gram):

  2500–3999

43(82.7)

406(84.6)

1

1

  <2500

2(3.8)

10(2.1)

1.9(0.40–8.90)

2.0(0.37–11.64)

  4000+

6(11.6)

55(11.4)

1.0(0.42–2.53)

1.0(0.39–3.02)

  Unknown

1(1.9)

9(1.9)

1.0(0.13–8.48)

4.9(0.51–46.72)