Table 2 Incidence rate ratios (IRR) for population-adjusted confirmed malaria cases in Cross River and Ebonyi states
IRR | 95% CI | P | |
|---|---|---|---|
Cross River | |||
Slope prior to the ITN distribution | 0.99 | (0.99–1.00) | 0.08 |
Change in level following ITN distribution | 1.12 | (1.04–1.20) | < 0.001 |
Difference in slopes pre- and post-ITN distribution | 1.01 | (1.00–1.02) | 0.04 |
Ebonyi | |||
Slope prior to the ITN distribution | 1.02 | (1.01–1.02) | < 0.001 |
Change in level following ITN distribution | 0.94 | (0.88–1.01) | 0.11 |
Difference in slopes pre- and post-ITN distribution | 0.95 | (0.94–0.96) | < 0.001 |
Differences between Cross River and Ebonyi | |||
Difference in the level between Cross River and Ebonyi prior to ITN distribution | 1.81 | (1.55–2.12) | < 0.001 |
Difference in the slope between Cross River and Ebonyi prior to intervention | 1.02 | (1.02–1.03) | < 0.001 |
Difference in the level between Cross River and Ebonyi immediately following ITN distribution | 0.84 | (0.79–0.93) | 0.01 |
Difference between Cross River and Ebonyi in the slope after ITN distribution compared to pre-distribution | 0.94 | (0.92–0.95) | < 0.001 |
Rainfall (lagged 1 month) | 1.04 | (1.02–1.05) | < 0.001 |
EVI (lagged 1 month) | 1.04 | (1.02–1.06) | < 0.001 |
Daytime temperature (lagged 2 months) | 0.96 | (0.94–0.97) | < 0.001 |
Month | |||
January | Ref. | ||
February | 1.07 | (1.04–1.10) | < 0.001 |
March | 1.00 | (0.97–1.03) | 0.91 |
April | 1.05 | (1.01–1.09) | 0.01 |
May | 1.04 | (0.99–1.09) | 0.08 |
June | 1.20 | (1.14–1.27) | < 0.001 |
July | 1.09 | (1.04–1.15) | < 0.001 |
August | 1.09 | (1.05–1.14) | < 0.001 |
September | 0.98 | (0.94–1.02) | 0.32 |
October | 1.02 | (0.98–1.07) | 0.35 |
November | 0.95 | (0.91–0.99) | 0.03 |
December | 1.03 | (1.00–1.07) | 0.05 |