Table 3.
Bivariate and Multivariable Logistic Regression Analysis Showing Determinants of Successful Vaginal Birth After Caesarean Section at Public Hospitals in Ambo Town, Oromia Regional State, Central Ethiopia 2020
| Variable | Category | Success of VBAC | COR (95% CI) | AOR (95% CI) | |
|---|---|---|---|---|---|
| Cases, 74(%) | Controls, 221 (%) | ||||
| Age | <25 | 15(20.2) | 33(14.9) | 2.378(1.015–5.569) | 8.88(3.03–26.03) *** |
| 25–29 | 46(62.2) | 120(54.3) | 2.005(1.012–3.973) | 5.37(2.28–12.66) *** | |
| ≥30 | 13(17.6) | 68(30.8) | 1 | 1 | |
| Parity | III | 31(41.9) | 44(19.9) | 2.999(1.665–5.405) | 0.72(0.10–5.17) |
| ≥ IV | 8(10.8) | 28(12.7) | 1.216(0.511–2.897) | 0.18(0.007–4.63) | |
| II | 35(47.3) | 149(67.4) | 1 | 1 | |
| Previous successful VBAC | Yes | 21(28.4) | 36(16.3) | 2.036(1.097–3.780) | 3.01(1.47–6.13) ** |
| No | 53(71.6) | 185(83.7) | 1 | 1 | |
| SVD before CS | Yes | 24(32.4) | 45(20.4) | 1.877(1.044–3.375) | 3.85(1.84–8.05) *** |
| No | 50(67.6) | 176(79.6) | 1 | 1 | |
| Membrane status | Ruptured | 40(54.1) | 86(38.9) | 1.847(1.086–3.141) | 1.38(0.75–2.55) |
| Intact | 34(45.9) | 135(61.1) | 1 | 1 | |
| Cervical dilation | ≥ 4cm | 46(62.2) | 101(45.7) | 1.952(1.138–3.347) | 2.05(1.14–3.67) * |
| < 4cm | 28(37.8) | 120(54.3) | 1 | 1 | |
| Duration of labor | ≤4hrs | 18(24.3) | 30(13.6) | 2.046(1.062–3.943) | 1.27(0.56–2.89) |
| > 4hrs | 56(75.7) | 191(86.4) | 1 | 1 | |
Notes: 1=reference, *p<0.05 **p<0.01 ***p<0.001.
Abbreviations: COR, crude odds ratio; AOR, adjusted odds ratio.