Table 3 Bivariate and multivariable logistic regression analysis of factors associated with failed induction of labor among mothers who had induction of labor in Amhara regional state referral hospitals, North West Ethiopia, 2016(N = 484)
Variables | Failed IOL | COR(95%CI) | AOR(95%CI) | |
|---|---|---|---|---|
YES | NO | |||
Methods of induction | ||||
Oxytocin | 101 | 183 | 1.3 (0.8,2.0) | 4.2 (2.2,8.1) |
Either combination | 10 | 49 | 0.5 (0.2,1.0) | 0.4 (0.2,0.9) |
prostaglandins | 42 | 99 | 1.00 | 1.00 |
Parity | ||||
Nulliparous | 92 | 144 | 2.0 (1.4,2.9) | 1.9 (1.2,2.9) ** |
Multiparous | 61 | 187 | 1 | |
Gestational age | ||||
≤ 36 | 9 | 52 | 1.00 | * |
37–41 | 112 | 228 | 2.8 (1.4,6.0) | |
≥ 42 | 32 | 51 | 3.6 (1.6,8.4) | |
Indication | ||||
Post term | 30 | 49 | 2.8 (1.3,6.0) | 4.1 (1.8, 9.3) ** |
PROM | 44 | 123 | 1.6 (0.8,3.3) | 0.9 (0.4, 2.0) |
Hypertensive disorder | 67 | 105 | 2.9 (1.4,5.8) | 2.4 (1.5, 5.1) |
Other | 12 | 54 | 1.00 | |
Age | ||||
≤ 30 | 139 | 266 | 1.00 | * |
> 30 | 14 | 65 | 0.4 (0.2,0.8) | |
Duration of induction | ||||
> 18 h | 44 | 73 | 1.4 (0.9,2.2) | 2.0 (1.5,3.5) |
≤ 18 h | 109 | 258 | 1.00 | |
Previous obstetric complications | ||||
Yes | 131 | 257 | 0.6 (0.4,1.0) | |
No | 22 | 74 | 1.00 | * |
Bishop score | ||||
≤ 5 | 78 | 143 | 1.4 (0.9,2.0) | 2.1 (1.3,3.6) |
> 5 | 75 | 188 | 1.00 | |
Birth weight | ||||
< 4000 g | 12 | 30 | 1.00 | * |
≥ 4000 g | 141 | 301 | 0.9 (0.4,1.7) | |