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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