Table 3.
Factors associated with third-trimester anaemia (< 11 g/dl) in study women (ATP analysis)
| Unadjusted Risk Ratio | (95% CI)a | p-valueb | Adjusted Risk Ratio | (95% CI) | p-value | |
|---|---|---|---|---|---|---|
| Treatment group | ||||||
| ISTp-AL | 0.83 | 0.57–1.20 | 0.318 | 0.81 | 0.57–1.17 | 0.259 |
| IPTp-SP | 1 | 1 | ||||
| Age category | ||||||
| ≤ 25 | 1 | 1 | ||||
| 26–30 | 1.07 | 0.67–1.72 | 0.766 | 0.95 | 0.59–1.52 | 0.824 |
| ≥ 31 | 1.31 | 0.81–2.12 | 0.279 | 1.03 | 0.61–1.75 | 0.899 |
| Baseline parasitaemia | ||||||
| Yes | 1.49 | 0.90–2.45 | 0.119 | 1.46 | 0.89–2.41 | 0.138 |
| No | 1 | 1 | ||||
| Gravidity | ||||||
| Primigravidae | 0.57 | 0.38–0.87 | 0.008 | 0.59 | 0.37–0.93 | 0.024 |
| Secundigravidae | 0.67 | 0.42–1.08 | 0.104 | 0.66 | 0.41–1.06 | 0.087 |
| Multigravidae | 1 | 1 | ||||
CI confidence interval
ap ≤ 0.05 means observed differences between comparison groups is statistically significant or not significant if p > 0.05
bRisk ratios were modelled using binomial regression. Treatment group, age category, baseline parasitaemia and gravidity were included in the final model