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Table 4 Malaria incidence and other demographic characteristics

From: Frequency of RANTES gene polymorphisms and their association with incidence of malaria: a longitudinal study on children in Iganga district, Uganda

Variable Malaria Number new episodes Crude incidence rate ratio P value 95 % CI
No Yes
Age
 0.5–1 years 31 37 65 Reference
 >1–5 years 121 123 272 0.85 0.397 0.590–1.233
 >5–9 years 64 46 77 0.57 0.013* 0.371–0.887
Blood group
 A+ 56 41 77 Reference
 B+ 73 57 109 1.06 0.768 0.713–1.581
 O+ 78 87 184 1.38 0.086 0.955–2.000
 AB+ 10 17 36 1.66 0.091 0.922–2.997
 O− 1 1 4 2.49 0.306 0.433–14.340
 B− 0 1 1 1.24 0.878 0.074–20.906
AB− 0 1 1 1.24 0.878 0.074–20.906
Sickle cell genotype
 Wild type 158 145 289 Reference   
 Heterozygous 64 46 110 0.78 0.394 0.755–1.427
Malaria history 201 199 412 7.33 0.008* 1.674–32.104
Reported anti-malarial drug use 206 197 386 1.68 0.247 0.698–4.043
Reported ITN use 184 189 377 2.69 0.001* 1.522–4.752