Table 1.
Logistic regression analysis of the overall labor abnormality at Hawassa referral hospital/Ethiopia, January 2010-December 2011
| 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) |
*Adjusted for all the variables in this Table. **P < 0.01.