Table 5.
Adjusted* ORs and 95% CI for the association between gravidity and stillbirth stratified by the asset index quintiles
| A. Missing indicator method | |||||
| Asset index quintiles | |||||
| 1 (most deprived) | 2 | 3 | 4 | 5 (least deprived) | |
| Gravidity | |||||
| 1 | 1.00 (Ref) | 1.00 (Ref) | 1.00 (Ref) | 1.00 (Ref) | 1.00 (Ref) |
| 4-Feb | 1.44 (1 15 to 1.81) | 1.47 (1.18 to 1.84) | 1.83 (1.48 to 2.26) | 2.55 (2.02 to 3.23) | 3.04 (2.37 to 3.90) |
| More than 5 | 1.89 (1.43 to 2.49) | 1.88 (1.43 to 2.48) | 3.04 (2.34 to 3.94) | 3.71 (2.75 to 5.02) | 4.62 (3.27 to 6.54) |
| Missing | 0.95 (0.74 to 1.22) | 1.18 (0.92 to 1.50) | 1.37 (1.09 to 1.72) | 1.88 (1.44 to 2.45) | 2.26 (1.67 to 3.05) |
| B. Complete case analysis | |||||
| Asset index quintiles | |||||
| 1 | 2 | 3 | 4 | 5 | |
| Gravidity | |||||
| 1 | 1.00 (Ref) | 1.00 (Ref) | 1.00 (Ref) | 1.00 (Ref) | 1.00 (Ref) |
| 4-Feb | 1.19 (0.92 to 1.54) | 1.22 (0.94 to 1.60) | 1.74 (1.35 to 2.24) | 2.05 (1.56 to 2.67) | 2.86 (2.11 to 3.88) |
| More than 5 | 1.59 (1.15 to 2.18) | 1.48 (1.05 to 2.08) | 2.70 (1.97 to 3.73) | 3.02 (2.12 to 4.31) | 5.02 (3.35 to 7.53) |
| C. Multiple imputations | |||||
| Asset index quintiles | |||||
| 1 | 2 | 3 | 4 | 5 | |
| Gravidity | |||||
| 1 | 1.00 (Ref) | 1.00 (Ref) | 1.00 (Ref) | 1.00 (Ref) | 1.00 (Ref) |
| 4-Feb | 1.48 (0.90 to 2.48) | 1.50 (0.90 to 2.55) | 1.77 (1.08 to 2.92) | 2.29 (1.39 to 3.84) | 2.73 (2.20 to 3.40) |
| More than 5 | 1.90 (1.00 to 3.52) | 1.98 (1.07 to 3.81) | 2.69 (1.40 to 5.04) | 3.31 (1.70 to 6.45) | 4.41 (3.33 to 5.86) |
Results are weighted for design effects and non-response.
*Multivariable logistic regression, adjusting for socioeconomic, health seeking behaviour, pre-existing medical conditions and biodemographic characteristics.