Table 4 Random effects Poisson regression results
Parameter | Incidence rate ratio (IRR) | 95% Confidence Interval | P-value |
|---|---|---|---|
Province | |||
Eastern (ref.) | |||
Luapula | 1.72 | 1.49–1.98 | < 0.001 |
Muchinga | 1.27 | 1.11–1.45 | 0.001 |
Northern | 1.04 | 0.89–1.23 | 0.621 |
IRS | |||
None (ref.) | |||
IRS | 0.91 | 0.84–0.98 | 0.019 |
IRS w/ mSpray | 0.75 | 0.66–0.86 | < 0.001 |
Rainfall | 1.00 | 1.00–1.00 | 0.017 |
EVI | 1.50 | 0.88–2.56 | 0.136 |
Year | |||
2014 (ref.) | |||
2015 | 1.12 | 1.04–1.21 | 0.004 |
2016 | 1.16 | 1.06–1.24 | 0.001 |
2017 | 1.11 | 1.00–1.19 | 0.050 |
Total tested | 1.00 | 0.99–1.00 | 0.260 |
Total confirmed previous year | 0.99 | 0.99–1.00 | 0.551 |