Table 1 Bivariate and multivariate analysis of independent variables with the school performance in Portuguese language or mathematics in a cohort of 198 children followed from March to November 2008, in two schools from an endemic area for malaria (Careiro, Amazonas, Brazil).
From: Malaria is associated with poor school performance in an endemic area of the Brazilian Amazon
| Â | Â | Poor performance in language and/or mathematics | Â | Â | Â | Â | |
|---|---|---|---|---|---|---|---|
| Â | Â | Yes n (%) | No n (%) | Crude Odds Ratio (95% CI) | p | Adjusted Odds Ratio (95% CI)* | p |
Sex | Male | 49 (52.1) | 56 (53.8) | Â | Â | Â | - |
| Â | Female | 45 (47.9) | 48 (46.2) | Â | Â | Â | Â |
Age | 6-10 years | 54 (57.4) | 48 (46.2) | 0.64 (0.36-1.11) | 0.112 | 1.70 (0.94-3.04) | 0.077 |
| Â | 11-14 years | 40 (42.6) | 56 (53.8) | Â | Â | Â | Â |
At risk of or with malnutrition** | Â | 16 (17.0) | 11 (14.5) | 1.21 (0.53-2.79) | 0.651 | - | - |
Mother's education | < 5 years | 59 (62.8) | 80 (76.9) | 1.98 (1.02-3.85) | 0.030 | 0.56 (0.30-1.06) | 0.076 |
|  | ≥ 5 years | 35 (37.2) | 24 (23.1) |  |  |  |  |
Time living in the study area | < 5 years | 70 (74.5) | 78 (75.0) | 1.03 (0.54-1.95) | 0.931 | 0.96 (0.49-1.90) | 0.906 |
|  | ≥ 5 years | 24 (25.5) | 26 (25.0) |  |  |  |  |
Anaemia# at enrollment** | Â | 21 (25.0) | 23 (24.0) | 1.06 (0.54-2.09) | 0.871 | - | - |
School absenteeism throughout the follow-up interval | Until 1 week | 62 (66.0) | 64 (61.5) | 0.83 (0.46-1.48) | 0.519 | 1.20 (0.65-2.20) | 0.559 |
| Â | > 1 week | 32 (34.9) | 40 (38.5) | Â | Â | Â | Â |
≥ 1 malarial attacks during the follow-up |  | 41 (43.6) | 29 (27.9) | 2.00 (1.11-3.62) | 0.021 | 1.91 (1.04-3.54) | 0.039 |
Total | Â | 94 (100) | 104 (100) | - | - | - | - |