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Table 3 Incidence rate ratio and 95% confidence interval for potential predictors of autochthonous dengue case in Guangdong, 2014

From: Species-specific climate Suitable Conditions Index and dengue transmission in Guangdong, China

Variable

Model Ia

Model IIb

Model IIIc

Model IVd

IRR (95% CI)

IRR (95% CI)

IRR (95% CI)

IRR (95% CI)

SCI-Ae. aegypti

1.03 (1.02, 1.05)

1.04 (1.02, 1.06)

–

1.06 (1.03, 1.09)

SCI-Ae. albopictus

0.99 (0.97, 1.01)

0.97 (0.95, 0.99)

–

–

Difference in SCI-Ae. aegypti and SCI-Ae. albopictus

1.05 (1.04, 1.07)

–

1.04 (1.02, 1.06)

–

NDVI

0.95 (0.94, 0.97)

0.98 (0.96, 0.99)

0.98 (0.96, 0.99)

0.97 (0.96, 0.99)

Imported case

1.59 (1.31, 1.93)

1.28 (1.02, 1.61)

1.28 (1.02, 1.60)

1.28 (1.01, 1.61)

SCI-Ae. aegypti × SCI-Ae. albopictuse

–

–

–

0.99 (0.99, 0.99)f

BIC

 

1165.30

1162.67

1165.91

  1. BIC Bayesian information criterion, CI confidence interval, IRR incidence rate ratio
  2. aUnivariable models
  3. bMultivariable models with predictors being SCI-Ae aegypti, NDVI, Imported case
  4. cMultivariable models with predictors being Difference in SCI-Ae. aegypti and SCI-Ae. albopictus, NDVI, Imported case
  5. dMultivariable model III with interaction term SCI-Ae. aegypti × SCI-Ae. albopictus
  6. eInteraction between the SCI for Ae. albopictus and the SCI for Ae. aegypti
  7. f0.9998 (0.9996, 0.9999), P = 0.001
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Parasites & Vectors

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