Logistic model regression results for the predictors of extended length of stay (n=1665)
| Variable | OR | 95% CI |
| Age | 1.06** | 1.02 to 1.10 |
| Number of admissions per day | 1.01 | 0.95 to 1.07 |
| Outside Addis Ababa | 1.14 | 0.69 to 1.89 |
| Multiple births | 5.14* | 1.44 to 18.39 |
| Pre-eclampsia | 4.47 | 1.42 to 14.03 |
| Weekend admission | 1.08 | 0.68 to 1.70 |
| Caesarean section | 1.52 | 0.90 to 2.58 |
| Readmission after childbirth | 1.19 | 0.35 to 3.98 |
P(x>χ2)=0.001.
*p<0.05, **p<0.01.