Table 3 Relationship between risk for maternal anaemia (Hb < 110 g/L) and gravidity throughout pregnancy in south Benin
From: Malaria and gravidity interact to modify maternal haemoglobin concentrations during pregnancy
Gravidity | % of anaemia | Crude Odds ratio* | Adjusted Odds ratio*§ | ||||
|---|---|---|---|---|---|---|---|
OR | CI95% | P value | OR | CI95% | P value | ||
ANV1 | |||||||
Primigravidae (n = 786) | 73.9 | 1.4 | [1.1, 1.6] | 0.001 | 1.1 | [0.9, 1.4] | 0.28 |
Multigravidae (n = 2733) | 68.0 | ||||||
ANV2 | |||||||
Primigravidae (n = 721) | 66.0 | 0.9 | [0.8, 1.1] | 0.44 | |||
Multigravidae (n = 2520) | 67.5 | ||||||
Delivery | |||||||
Primigravidae (n = 588) | 36.9 | 0.8 | [0.7, 0.9] | 0.02 | 0.7 | [0.6, 0.9] | 0.003 |
Multigravidae (n = 2241) | 42.4 | ||||||