Table 1.
Crude and adjusted odds ratios for the effect of gravidity as a multi-level variable, age, wealth index and relationship status on placental malaria, adjusted for confounders, estimated by logistic regression in Ghanaian women aged 14–49 (N = 1808)
| Variable | Category | Crude model | Fully adjusted modela | ||
|---|---|---|---|---|---|
| OR (95% CI) | P-value (LRT) | OR (95% CI) | P-value (LRT) | ||
| Gravidity | MG | (Ref.) | < 0.001 | (Ref.) | < 0.001 |
| SG | 2.24 (1.73–2.88) | 1.67 (1.24–2.25) | |||
| PG | 5.37 (4.08–7.07) | 3.36 (2.39–4.71) | |||
| Age | < 18 | (Ref.) | (Ref.) | ||
| 18–25 | 0.36 (0.26–0.51) | 0.66 (0.45–0.96) | |||
| 25–49 | 0.14 (0.10–0.21) | 0.43 (0.27–0.67) | |||
| Wealth index | Least poor | (Ref.) | (Ref.) | ||
| Less poor | 1.12 (0.82–1.53) | 1.10 (0.78–1.54) | |||
| Poor | 1.40 (1.02–1.90) | 1.48 (1.06–2.07) | |||
| More poor | 2.08 (1.53–2.84) | 2.14 (1.53–2.98) | |||
| Extremely poor | 1.59 (1.17–2.17) | 1.93 (1.38–2.69) | |||
| Relationship status | Married | (Ref.) | (Ref.) | ||
| Living together | 1.97 (1.60–2.42) | 1.25 (0.99–1.59) | |||
| Widowed/divorced/separated | 1.90 (0.98–3.71) | 0.91 (0.44–1.87) | |||
| Single | 3.40 (2.36–4.88) | 1.38 (0.91–2.09) | |||
LRT Likelihood ratio test, MG multigravidae; PG primigravidae
aModel adjusted for age group, wealth index and relationship status