Table 3.
Associations between age and prevalence of any parasitaemia, stratified by study site
| Age group (years) | Walukuba | Kihihi | Nagongera | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Prevalence | RR (95 % CI) | p value | Prevalence | RR (95 % CI) | p value | Prevalence | RR (95 % CI) | p value | |
| 0.5– <2 | 31/247 (12.6 %) | 0.62 (0.44–0.88) | 0.008 | 52/294 (17.7 %) | 0.55 (0.40–0.76) | <0.001 | 129/263 (49.1 %) | 0.66 (0.58–0.75) | <0.001 |
| 2– <5 | 164/666 (24.6 %) | Reference group | – | 229/843 (27.2 %) | 0.82 (0.67–0.99) | 0.04 | 471/740 (63.7 %) | 0.85 (0.79–0.92) | <0.001 |
| 5– <11 | 198/936 (21.2 %) | 0.79 (0.62–1.02) 0.071 | 548/1470 (37.3 %) | Reference group | 1045/1380 (75.7 %) | Reference group | |||
| ≥18 | 151/803 (18.8 %) | 0.76 (0.57–1.01) | 0.06 | 185/765 (24.2 %) | 0.66 (0.51–0.85) | 0.001 | 456/853 (53.5 %) | 0.71 (0.64–0.78) | <0.001 |
Relative risk is adjusted for repeated measures in the same study participant
Reference group is defined as the group with highest prevalence, at all sites