Table 6 Univariate analysis and multivariable logistic regression of risk factors associated poor outcome (defined as massive blood transfusion, hysterectomy or death)
Variable | Poor outcome N = 46 | No poor outcome N = 73 | Missing data | Crude OR [95% CI] | Adjusted OR [95% CI] |
|---|---|---|---|---|---|
N (%) | N (%) | N (%) | |||
Antenatal | |||||
BMI ≥ 35 | 11 (23.9) | 9 (12.3) | 15 (12.6) | 2.09 [0.78, 5.60] | – |
Age at delivery ≥35 | 11 (23.9) | 8 (11.0) | 0 | 2.55 [0.94, 6.94] | – |
Previous c. section | 19 (41.3) | 18 (24.7) | 3 (2.5) | 2.15 [0.97, 4.78] | – |
Primigravida | 12 (26.1) | 21 (46.7) | 0 | 0.87 [0.38, 2.01] | – |
Relating to birth | |||||
Prolonged labour | 9 (19.6) | 4 (5.5) | 8 (6.7) | 4.43 [1.27, 15.47] | 3.72 [0.96, 14.37] |
Induction of labour | 11 (23.9) | 30 (41.1) | 6 (5.0) | 0.56 [0.20, 1.05] | 0.46 [0.18, 1.15] |
Oxytocin foraugmentation | 5 (10.9) | 21 (46.7) | 9 (7.6) | 0.33 [0.12, 0.97] | 0.32 [0.10, 1.05] |
Caesarean sectiona | 34 (73.9) | 24 (32.9) | 0 | 5.79 [2.55, 13.13]*** | 4.01 [1.58, 10.14] ** |