Table 5.
Logistic regression analysis of obstructed labor 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 | 59(82.0) | 399(83.1) | 1 | 1 |
| 15–19 | 6(8.3) | 46(9.6) | 0.9 (0.36–2.16) | 0.8(0.29–2.31) |
| 35+ | 7(9.7) | 35(7.3) | 1.4 (0.57–3.18) | 0.7(0.24–2.13) |
| Residence: | ||||
| Urban | 25(34.7) | 305(63.5) | 1 | 1 |
| Rural | 47(65.3) | 175(3.5) | 3.3 (1.95–5.51) † | 2.0(1.10–3.76)* |
| Parity: | ||||
| Multiparous | 23(31.9) | 140(29.2) | 1 | 1 |
| Grandmultiparous | 9(12.5) | 33(6.9) | 1.3(0.73–2.19) | 1.4(0.69–2.63) |
| Primiparous | 40(55.6) | 307(63.9) | 2.1(0.93–4.69) | 1.8(0.65–4.98) |
| Gestational age(wks): | ||||
| 37–41 | 65(90.3) | 403(84.0) | 1 | 1 |
| 28–36 | 2(2.8) | 13(2.7) | 0.9(0.21–4.33) | 1.1(0.14–8.66) |
| 42+ | 5(6.9) | 64(13.3) | 0.5(0.19–1.25) | 0.6(0.21–1.61) |
| Antenatal are | ||||
| Yes | 47(65.3) | 378(78.7) | 1 | 1 |
| No | 20(27.8) | 58(12.1) | 2.8(1.54–5.01)** | 2.1(1.04–4.42)* |
| Unknown | 5(6.9) | 44(9.2) | 0.5(0.35–2.42) | 1.1(0.37–3.25) |
| Uterine contraction: | ||||
| Adequate | 46(63.9) | 243(50.6) | 1 | 1 |
| Inadequate | 26(36.1) | 237(49.4) | 0.6(0.35–0.97)* | 0.7(0.39–1.28) |
| Pelvic status: | ||||
| Adequate | 44(61.1) | 365(76.0) | 1 | 1 |
| Contracted | 25(34.7) | 46(9.6) | 4.5(2.53-8.04) † | 2.8(1.47–5.41)** |
| Unknown | 3(4.2) | 69(14.4) | 0.4(0.11-1.19) | 0.3(0.07–1.51) |
| Fetal membranes: | ||||
| Intact | 2(2.8) | 112(23.3) | 0.1(0.02–0.36)** | 0.1(0.03–0.59)** |
| PROM | 2(2.8) | 37(7.7) | 0.1(0.02–1.02) | 0.2(0.03–1.64) |
| Ruptured during labor | 68(94.4) | 331(69.0) | 1 | 1 |
| Fetal Position: | ||||
| Occipitoanterior | 2(2.8) | 93(19.4) | 1 | 1 |
| Occipito posterior | 19(26.4) | 62(12.9) | 14.3(3.21–63.36)† | 9.7(2.03–45.98)** |
| Occipito transverse | 16(22.2) | 98(20.4) | 7.6(1.70–33.92)** | 5.0(1.04–23.55)* |
| Other | 35(48.6) | 227(47.3) | 7.2(1.69–30.42)** | 7.6(1.70–34.27)** |
| Birth weight (gram): | ||||
| 2500–3999 | 56(77.8) | 406(84.6) | 1 | 1 |
| <2500 | 1(1.4) | 10(2.1) | 0.7(0.09–5.77) | 1.1(0.11–10.72) |
| 4000+ | 9(12.5) | 55(11.4) | 1.2(0.56–2.53) | 0.8(0.32–1.83) |
| Unknown | 6(8.3) | 9(1.9) | 4.8(1.66–14.09)** | 2.8(0.76–10.37) |
‡Adjusted for all the variables in this Table. * P < 0.05; ** P < 0.01, †P < 0.0001.