Table 2.
Malaria cases incidence rate ratio (IRR) of P. falciparum among different age groups and gender in southwestern Ethiopia, July to December 2016.
| Variable | No. participants | Pf cases (n = 27) | Person years of contribution (n = 277.4) | Malaria incidence per person-year | IRR (95% CI) | P value | |
|---|---|---|---|---|---|---|---|
| Age groups | <5 years | 79 | 4 | 37.0 | 0.11 | 2.6 (0.7–9.1) | 0.15 |
| 5–14 years | 209 | 17 | 98.1 | 0.17 | 4.1 (1.6–10.4) | 0.003 | |
| ≥15 yearsa | 303 | 6 | 142.3 | 0.04 | 1 | ||
| Sex | Male | 292 | 17 | 137.0 | 0.12 | 1.7 (0.8–3.8) | 0.16 |
| Femalea | 299 | 10 | 140.4 | 0.07 | 1 | ||
a
Reference group, CI = Confidence interval, IRR = incidence rate ratio, Pf = Plasmodium falciparum.