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Table 4 Logistic regression analysis of prolonged second stage of labor at Hawassa referral hospital/Ethiopia, January 2010-December 2011

From: Predictors of labor abnormalities in university hospital: unmatched case control study

Variables Cases no (%) Controls no (%) Crude OR (95% CI) Adjusted OR (95% CI)
Maternal age (yrs):     
  20–34 76(87.4) 399(83.1) 1 1
  15–19 5(5.7) 46(9.6) 0.6 (0.22–1.48) 0.6(0.31–1.78)
  35+ 6(6.9) 35(7.3) 0.9 (0.37–2.21) 1.1(0.39–2.99)
Residence:     
  Urban 54(62.1) 305(63.5) 0.9 (0.59–1.50) 1.1(0.64–1.82)
  Rural 33(37.9) 175(3.5) 1 1
Parity:     
  Multiparous 28(32.2) 140(29.2) 1 1
  Grandmultiparous 5(5.7) 33(6.9) 1.1(0.69–1.87) 1.1(0.61–1.84)
  Primiparous 54(62.1) 307(63.9) 0.9(0.32–2.30) 0.8(0.25–2.42)
Gestational age(wks):     
  37–41 71(81.6) 403(84.0) 1 1
  28-36 3(3.5) 13(2.7) 1.3(0.36–4.71) 1.8(0.41–7.56)
  42+ 13(14.9) 64(13.3) 1.2(0.60–2.20) 1.2(0.61–2.42)
Uterine contraction:     
  Adequate 57(65.5) 243(50.6) 1 1
  Inadequate 30(34.5) 237(49.4) 0.5(0.34–0.87)* 0.6(0.35–0.97)*
Pelvic status:     
  Adequate 72(82.8) 365(76.0) 1 1
  Contracted 4(4.6) 46(9.6) 0.4(0.15–1.26) 0.4(0.14–1.20)
  Unknown 11(12.6) 69(14.4) 0.8(0.41–1.60) 1.0(0.47–2.20)
Fetal membranes:     
  Intact 4(4.6) 112(23.3) 0.2(0.06–0.43) 0.2(0.07–0.54)**
  PROM 4(4.6) 37(7.7) 0.5(0.17–1.39) 0.5(0.17–1.53)
  Ruptured during labor 79(90.8) 331(69.0) 1 1
Fetal Position:     
  Occipitoanterior 18(20.7) 93(19.4) 1 1
  Occipito posterior 17(19.5) 62(12.9) 1.4(0.68–2.96) 1.1(0.51–2.48)
  Occipito transverse 26(29.9) 98(20.4) 1.4(0.71–2.66) 1.3(0.63–2.57)
  Other 26(29.9) 227(47.3) 0.6(0.31–1.13) 0.7(0.34–1.34)
Birth weight (gram):     
  2500–3999 69(79.3) 406(84.6) 1 1
  <2500 2(2.3) 10(2.1) 1.2(0.25–5.49) 1.1(0.19–6.08)
  4000+ 15(17.3) 55(11.4) 1.6(0.85–2.99) 1.6(0.80–3.12)
  Unknown 1(1.1) 9(1.9) 0.7(0.08–5.24) 0.6(0.07–5.27)
  1. Adjusted for all the variables in this Table. * P < 0.05; ** P < 0.01, P < 0.0001.