| Age | Southern Coastal plain (Yoto) | Central Plateaux (Ogou) | Northern Savannah (Tone) | ||||||
---|---|---|---|---|---|---|---|---|---|---|
mo | 2004 % | 2005 % | RR (95%CI) | 2004 % | 2005 % | RR (95%CI) | 2004 % | 2005 % | RR (95%CI) | |
Hb <8 g/dL | <18 | 23.9 | 24.3 | 1.01 (0.73-1.41) | 35.0 | 16.2 | 0.46 (0.33-0.64) | 38.8 | 31.7 | 0.82 (0.65-1.02) |
 | ≥18 | 15.2 | 9.4 | 0.62 (0.44-0.88) | 17.4 | 9.4 | 0.54 (0.37-0.79) | 14.5 | 15.7 | 1.08 (0.78-1.49) |
Malarial anaemia | <18 | 15.0 | 19.8 | 1.31 (0.86-2.01) | 23.2 | 8.6 | 0.37 (0.24-0.58) | 28.6 | 28.9 | 1.01 (0.75-1.37) |
 | ≥18 | 10.8 | 7.7 | 0.71 (0.48-1.05) | 13.6 | 7.4 | 0.54 (0.33-0.90) | 9.7 | 12.8 | 1.32 (0.89-1.95) |
Clinical malaria | <18 | 5.9 | 3.4 | 0.59 (0.27-1.27) | 10.0 | 3.9 | 0.38 (0.19-0.76) | 11.4 | 10.4 | 0.91 (0.62-1.34) |
 | ≥18 | 9.5 | 4.9 | 0.51 (0.35-0.75) | 8.9 | 7.3 | 0.83 (0.54-1.28) | 10.7 | 9.4 | 0.89 (0.59-1.33) |
Any parasitaemia | <18 | 39.6 | 50.4 | 1.27 (1.02-1.59) | 49.1 | 44.1 | 0.90 (0.75-1.07) | 39.4 | 49.0 | 1.24 (1.05-1.47) |
 | ≥18 | 64.1 | 71.3 | 1.11 (1.00-1.24) | 71.1 | 68.1 | 0.96 (0.83-1.11) | 70.7 | 74.5 | 1.05 (0.94-1.19) |
High parasitaemia | <18 | 32.2 | 24.8 | 0.77 (0.48-1.24) | 45.5 | 22.2 | 0.49 (0.33-0.71) | 43.2 | 40.1 | 0.93 (0.67-1.28) |
 | ≥18 | 30.4 | 26.4 | 0.87 (0.68-1.11) | 36.0 | 28.0 | 0.78 (0.58-1.05) | 31.5 | 36.2 | 1.15 (0.90-1.47) |