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Table 1 Logistic regression analysis of the overall labor abnormality 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):     
  20–34 366(85.5) 399(83.1) 1 1
  15–19 34(8.0) 46(9.6) 0.8(0.51–1.28) 0.7(0.46–1.22)
  35+ 28(6.5) 35(7.3) 0.9(0.52–1.46) 0.9(0.52–1.64)
Residence:     
  Urban 257(60.0) 305(63.5) 1.2(0.89-1.52) 1.1(0.83–1.50)
  Rural 171(40.0) 175(3.5) 1 1
Parity:     
  Multiparous 115(26.9) 140(29.2) 1 1
  Grandmultiparous 30(7.0) 33(6.9) 0.9(0.66-1.20) 0.9(0.65–1.22)
  Primiparous 283(66.1) 307(63.9) 1.0(0.59-1.66) 0.9(0.52–1.69)
Gestational age (wks):     
  37–41 350(81.8) 403(84.0) 1 1
  28–36 11(2.6) 13(2.7) 0.9(0.43–2.20) 1.1(0.45–2.61)
  42+ 67(15.6) 64(13.3) 1.2(0.83–1.75) 1.1(0.75–1.61)
Uterine contraction:     
  Adequate 204(47.7) 243(50.6) 1 1
  Inadequate 224(52.3) 237(49.4) 1.1(0.87–1.46) 1.1(0.86–1.49)
Pelvic status:     
  Adequate 352(82.3) 365(76.0) 1 1
  Contracted 45(10.5) 46(9.6) 1.0(0.66–1.57) 1.0(0.66–1.63)
  Unknown 31(7.2) 69(14.4) 0.5(0.30–1.73) 0.5(0.31–0.79)**
Fetal membranes:     
  Intact 95(22.2) 112(23.3) 0.9(0.68–1.28) 1.0(0.72–1.43)
  PROM 28(6.5) 37(7.7) 0.9(0.51–1.46) 0.9(0.54–1.54)
  Ruptured during labor 302(70.6) 331(69.0) 1 1
Fetal Position:     
  Occipitoanterior 88(20.6) 93(19.4) 1 1
  Occipito posterior 60(14.0) 62(12.9) 1.0(0.65–1.62) 1.0(0.62–1.62)
  Occipito transverse 100(23.4) 98(20.4) 1.1(0.72–1.61) 1.0(0.69–1.58)
  Other 180(42.0) 227(47.3) 0.8(0.59–1.19) 0.9(0.60–1.26)
Birth weight (gram):     
  2500–3999 352(82.2) 406(84.6) 1 1
  <2500 12(2.8) 10(2.1) 1.4(0.59–3.24) 1.4(0.58–3.38)
  4000+ 55(12.9) 55(11.4) 1.2(0.77–1.72) 1.1(0.72–1.65)
  Unknown 9(2.1) 9(1.9) 1.2(0.45–2.94) 1.3(0.48–3.31)
  1. *Adjusted for all the variables in this Table. **P < 0.01.