Table 6.
Predictors of anaemia among pregnant women
| Variables | COR | 95%CI | P-value | AOR | 95%CI | P-value |
|---|---|---|---|---|---|---|
| Maternal age | ||||||
| < 20y | 3.312 | 1.322-8.297 | 0.011* | 2.489 | 0.958-6.467 | 0.061 |
| 20-35 | 1 | 1 | ||||
| ≥ 35 | 1.382 | 1.113-1.717 | 0.003* | 1.386 | 1.103-1.742 | 0.005* |
| Educational status | ||||||
| College and above | 1 | – | ||||
| Junior or senior | 0.705 | 0.222-2.237 | 0.553 | – | ||
| Primary or illiteracy | 1.384 | 0.434-4.408 | 0.583 | – | ||
| Cities | ||||||
| Beijing | 1 | 1 | ||||
| Guangzhou | 7.104 | 5.826-8.663 | < 0.001* | 7.293 | 5.455-9.751 | < 0.001* |
| Chengdu | 2.540 | 2.144-3.008 | < 0.001* | 2.847 | 2.147-3.777 | < 0.001* |
| Family per capita monthly income (RMB, CYN) | ||||||
| < 1000 | 0.747 | 0.610-0.915 | 0.005* | 1.671 | 1.291-2.162 | < 0.001* |
| 1000-4999 | 0.995 | 0.842-1.176 | 0.956 | 1.157 | 0.968-1.382 | 0.109 |
| ≥ 5000 | 1 | 1 | ||||
| Residence | ||||||
| Urban | 1 | 1 | ||||
| Rural | 1.636 | 1.393-1.921 | < 0.001* | 1.308 | 1.095-1.563 | 0.003* |
| Pre-pregnancy BMI (kg/m2) | ||||||
| < 18.5 | 1.302 | 1.081-1.567 | 0.005 | 1.237 | 1.021-1.498 | 0.030* |
| 18.5-23.99 | 1 | 1 | ||||
| 24-27.99 | 0.599 | 0.458-0.782 | < 0.001* | 0.662 | 0.506-0.867 | 0.003* |
| ≥ 28 | 0.460 | 0.264-0.800 | 0.006* | 0.506 | 0.283-0.906 | 0.022* |
| Parity | ||||||
| 0 | 1 | 1 | ||||
| 1-3 | 2.427 | 2.075-2.839 | < 0.001* | 1.071 | 0.842-1.363 | 0.576 |
| ≥ 4 | 7.162 | 3.400-15.089 | < 0.001* | 2.130 | 0.920-4.932 | 0.078 |
COR Crude Odds Ratio, AOR Adjusted Odds Ratio, CI Confidence interval
*P-value< 0.05 was statistically significant