Table 3. Factors associated with newborn haemoglobin concentration at birth in district of Allada, Benin 2010–2012, N = 392 (Univariate and multivariate linear regressions).
| Factors | Crude mean haemoglobin difference (g/L) | 95% CI | P value | Adjusted mean haemoglobin difference (g/L) | 95% CI | P value | |
|---|---|---|---|---|---|---|---|
| Maternal factors | |||||||
| Placental malaria infection † | - 1.1 | [-3.9, 6.1] | 0.68 | - | - | - | |
| Number of anaemia episode during pregnancy | 1 | 0.3 | [-7.1, 7.6] | - | - | - | |
| 2 | - 2.6 | [-9.6, 4.6] | 0.35 | - | - | - | |
| 3 | - 4.3 | [-11.5, 2.6] | - | - | - | ||
| Maternal vitamin B12 deficiency at delivery | - 8.2 | [-15.3, -1.1] | 0.02 | - | - | - | |
| Maternal folic acid deficiency at delivery | - 3.4 | [-7.6, 0.8] | 0.11 | - | - | - | |
| Primigravidae | 7.3 | [1.6, 12.9] | 0.01 | 8.5 | [2.7, 14.2] | < 0.01 | |
| Aïzo ethnic group | 5.1 | [0.6, 9.5] | 0.03 | 6.2 | [1.7, 10.7] | < 0.01 | |
| IPTp group (Mefloquine) | - 3.2 | [-7.6, 1.1] | 0.14 | - | - | - | |
| Child’s factors | |||||||
| Serum ferritin level of child at birth (μg/L) | - 2.6 | [-5.2, 0.1] | 0.05 | - 4.4 | [-7.2, -1.6] | < 0.01 | |
| Serum folic acid level of child at birth (ng/mL) | 3.1 | [0.2, 6.1] | 0.04 | 3.9 | [0.9, 6.9] | 0.01 | |
| Serum vitamin B12 level of child at birth (pg/mL) | 2.9 | [-0.2, 6.2] | 0.07 | 3.7 | [0.4, 7.0] | 0.03 | |
| Sex of child (male) | 3.5 | [-0.6, 7.7] | 0.09 | - | - | - |
(-) Association was not significant in multivariate analysis; 95% CI: Confidence Interval to 95%
IPTp: Intermittent Preventive Treatment in pregnancy
† Malaria infection detected in placenta by histology (included past, chronic and active infection).