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Table 1 Results from the mixed effects negative binomial regression for predictors of reported dengue fever case incidence at the district level

From: Epidemiology of dengue virus infections in Nepal, 2006–2019

Covariate IRR (95% CIs)
Year
 2016 Comparator
 2017 3.1 (0.9–10.8)
 2018 4.8 (1.5–15.3)
 2019 141.6 (45.8–438.4)
 Mean elevation 0.1 (0.01–0.2)
 Population density (people per km2) 1.3 (0.9–1.8)
Year and elevation interaction
 2016 × mean elevation Comparator
 2017 × mean elevation 1.8 (0.4–7.6)
 2018 × mean elevation 22.7 (6.0–86.1)
 2019 × mean elevation 9.6 (2.6–36.1)
  1. IRR Incidence rate ratio, CI Confidence interval