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Table 3 Estimated effects of each round of LLIN distribution and ACT introduction on the number of malaria cases by sentinel health facility

From: Repeated mosquito net distributions, improved treatment, and trends in malaria cases in sentinel health facilities in Papua New Guinea

Health facility 2nd vs. 1st
LLIN distribution
3rd vs. 2nd
LLIN distribution
Introduction of ACT
IRR 95% CI IRR 95% CI IRR 95% CI
Balimo 1.32E−09 (0.00, –) 1.21 (0.47, 3.14)
East Cape 0.53 (0.20, 1.41) 0.34 (0.18, 0.64) 1.50 (0.79, 2.85)
Karimui 0.19 (0.06, 0.58) 0.12 (0.03, 0.43) 0.95 (0.32, 2.80)
Dreikikir 1.15 (0.54, 2.46) 3.95 (1.89, 8.25)
Sausi 0.43 (0.21, 0.89) 2.08 (1.16, 3.72) 1.28 (0.76, 2.16)
Arawa 0.15 (0.06, 0.36) 1.79 (0.57, 5.64)
Lemakot 0.26 (0.14, 0.50) 1.73 (1.09, 2.75)
  1. All estimates were adjusted for La Niña or El Niño year
  2. IRR incidence rate ratio, CI confidence interval