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Table 2 Effects of IRS, LLINs, unadjusted, and adjusted for each other on malaria infection in Príncipe for the year 2009

From: Pre-elimination of malaria on the island of Príncipe

Intervention

Malaria cases

Total cases

OR

95% CI

P value

Adjusted OR

95% CI

P value

IRS

No

12

501

1

     
 

Yes

40

5108

0.322

0.168-0.617

0.001

0.286*

0.120-0.679

0.005

LLINs

No

28

3084

1

     
 

Yes

24

2525

1.047

0.606-1.811

0.869

0.852**

0.267-2.722

0.787

IRS + LLINs

      

1.301

0.348-4.858

0.696

  1. RS: indoor residual spraying; LLINs: long lasting insecticide-treated nets; OR: odds ratio; IC: confidence interval.
  2. *Adjusted for effect of LLINs.
  3. **Adjusted for effect of IRS.