Underlying determinants of perinatal mortality using 2011–2015 Iganga-Mayuge HDSS event histories data
| Unadjusted | Adjusted 1 | Adjusted 2 | Fully adjusted | |||||
| OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | |
| Childbirth weight | ||||||||
| <2.5 kg | 1.00 | – | 1.00 | – | 1.00 | 1.00 | – | |
| 25 kg+ | 2.54 | (1.74 to 3.70)*** | 2.54 | (1.75 to 3.71)*** | 2.73 | (1.21 to 6.14)* | 2.55 | (1.15 to 5.67)* |
| Place of delivery | ||||||||
| Community | 1.00 | – | 1.00 | – | 1.00 | – | 1.00 | – |
| Health facility | 1.01 | (0.8 to 1.28) | 1.04 | (0.82 to 1.32) | 1.06 | (0.82 to 1.37) | 1.16 | (0.89 to 1.53) |
| Place of delivery and LBW interaction** | ||||||||
| <2.5 kg and health facility delivery interaction | – | – | – | – | 0.91 | (0.4 to 2.07) | 0.91 | (0.40 to 2.06) |
| Annual birth quarters | ||||||||
| 1 | 1.00 | – | – | – | – | – | 1.00 | – |
| 2 | 1.08 | (0.78 to 1.49) | – | – | – | – | 1.07 | (0.77 to 1.49) |
| 3 | 1.26 | (0.93 to 1.72) | – | – | – | – | 1.23 | (0.9 to 1.68) |
| 4 | 1.20 | (0.87 to 1.64) | – | – | – | – | 1.20 | (0.87 to 1.66) |
| Maternal education level | ||||||||
| Primary+ | 1.00 | – | – | – | – | – | 1.00 | – |
| None | 1.69 | (1.27 to 2.25)*** | – | – | – | – | 1.63 | (1.21 to 2.18)*** |
| Maternal age (year) | ||||||||
| <20 | 1.12 | (0.83 to 1.53) | – | – | – | – | 1.08 | (0.50 to 2.33) |
| 20—29 | 1.00 | – | – | – | – | – | 1.00 | – |
| 30+ | 1.48 | (1.18 to 1.85)*** | – | – | – | – | 1.68 | (1.21 to 2.33)*** |
| Childbirth order | ||||||||
| 1 | 0.79 | (0.62 to 1.01) | – | – | – | – | 1.05 | (0.69 to 1.60) |
| 2—4 | 1.00 | – | – | – | – | – | 1.00 | – |
| 5th+ | 0.51 | (0.23 to 1.14) | – | – | – | – | 0.38 | (0.17 to 0.87)* |
| Place of residence | ||||||||
| Urban | 1.00 | – | – | – | – | – | 1.00 | – |
| Rural | 1.40 | (1.1 to 1.78)** | – | – | – | – | 1.38 | (1.02 to 1.85)* |
| Marital status | ||||||||
| No partner | 1.00 | – | – | – | – | – | 1.00 | – |
| Has a partner | 0.74 | (0.54 to 1.02) | – | – | – | – | 0.75 | (0.52 to 1.07) |
| Experienced neonatal or pregnancy loss previously | ||||||||
| No | 1.00 | – | – | – | – | – | 1.00 | – |
| Yes | 4.18 | (3.1 to 5.63)*** | – | – | – | – | 3.95 | (2.86 to 5.46)*** |
| Household wealth | ||||||||
| Poor(er) (1–2) | 1.00 | – | – | – | – | 1.00 | – | |
| Less poor (3–5) | 1.10 | (0.88 to 1.38) | – | – | – | – | 0.85 | (0.65 to 1.12) |
| Child sex | ||||||||
| Male | 1.00 | – | – | – | – | – | 1.00 | – |
| Female | 1.07 | (0.82 to 1.40) | – | – | – | – | 1.05 | (0.8 to 1.37) |
| First birth order-adolescence age interaction† | ||||||||
| First order and <20 years | – | – | – | – | – | – | 1.18 | (0.49 to 2.87) |
| First birth order-advanced age interaction† | ||||||||
| First order and 30+ years | – | – | – | – | – | – | 0.74 | (0.36 to 1.50) |
| Birth category | ||||||||
| Singleton | 1.00 | – | – | – | – | – | – | – |
| Multiple | 1.02 | (0.5 to 2.08) | – | – | – | – | – | – |
*P<0.05; **p<0.01; ***p<0.001.
†Base – community delivery – birth weight 2.5 kg and above interaction.
‡Base – second and above birth order – 30 years of age and below interaction.
HDSS, Health Demographic and Surveillance Site; LBW, low birth weight.