Table 6. Risk factors for P. falciparum malaria infections at delivery.
| Delivery | ||||||||
|---|---|---|---|---|---|---|---|---|
| Peripheral Blood | Placental Blood | |||||||
| Risk factors | Crude OR | p value | *Adjusted OR (95% CI) | p value | Crude OR | p value | *Adjusted OR (95% CI) | p value |
| Parity | ||||||||
| Primiparae | [Reference] | - | [Reference] | - | [Reference] | - | [Reference] | - |
| Multiparae | 1.02 (0.67–1.57) | 0.921 | 1.14 (0.65–2.00) | 0.642 | 0.73 (0.45–1.18) | 0.2 | 0.94 (0.49–1.81) | 0.849 |
| Term at delivery | ||||||||
| Premature (<37 weeks) | [Reference] | - | [Reference] | - | [Reference] | - | [Reference] | - |
| Early term (37–38 weeks) | 0.75 (0.41–1.38) | 0.361 | 0.72 (0.39–1.33) | 0.290 | 1.60 (0.74–3.48) | 0.234 | 1.67 (0.75–3.70) | 0.208 |
| Full term (39–40 weeks) | 0.53 (0.31–0.92) | 0.023 | 0.54 (0.31–0.94) | 0.030 | 0.73 (0.35–1.52) | 0.405 | 0.83 (0.39–1.76) | 0.633 |
| Late term (41 weeks) | 0.76 (0.39–1.48) | 0.42 | 0.79 (0.40–1.55) | 0.488 | 0.68 (0.28–1.65) | 0.388 | 0.74 (0.30–1.85 | 0.52 |
| Post term (> = 42 weeks) | 0.76(0.33–1.74) | 0.519 | 0.81 (0.35–1.88) | 0.620 | 1.30 (0.48–3.57) | 0.607 | 1.34 (0.47–3.81) | 0.589 |
| Age | ||||||||
| < 18 years | [Reference] | - | [Reference] | - | [Reference] | - | [Reference] | - |
| 18–20 years | 0.98 (0.42–2.28) | 0.962 | 0.92 (0.37–2.29) | 0.852 | 0.52 (0.20–1.31) | 0.163 | 0.62 (0.22–1.73) | 0.362 |
| 21–24 years | 0.60 (0.25–1.43) | 0.25 | 0.57 (0.22–1.49) | 0.252 | 0.27 (0.10–0.70) | 0.008 | 0.31 (0.10–0.93) | 0.037 |
| 25 years+ | 0.79 (0.36–1.74) | 0.558 | 0.72 (0.28–1.88) | 0.503 | 0.38 (0.16–0.90) | 0.028 | 0.44 (0.15–1.32) | 0.143 |
| Season of delivery | ||||||||
| Other months | [Reference] | - | [Reference] | - | [Reference] | - | [Reference] | - |
| April-July | 1.12 (0.78–1.58) | 0.543 | 1.14 (0.80–1.63) | 0.475 | 1.28 (0.86–1.91) | 0.217 | 1.37 (0.91–2.07) | 0.136 |
| Sep-Nov | 1.32 (0.82–2.12) | 0.259 | 1.35 (0.83–2.20) | 0.228 | 1.25 (0.72–2.16) | 0.422 | 1.45 (0.82–2.56) | 0.198 |
OR = Odd ratio
*Crude ORs for parity, gestational age, season of delivery are adjusted for all other Covariates (parity, gestational age, mother’s age, season of enrolment).