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Table 3 The estimated effect of mosquito age, Anopheles gambiae s.l. species and treatment on mortality in isofemale lines in response to either LLINs or IRS

From: Aging partially restores the efficacy of malaria vector control in insecticide-resistant populations of Anopheles gambiae s.l. from Burkina Faso

  

OR*

95% CI#

P value

  

OR

95% CI

P value

LLINaλ

    

IRSb

    

Age

    

Age

    
 

Young (3-5d)

1.00

   

Young (3-5d)

1.00

  
 

Old (17-19d)

5.28

2.81-9.92

< 0.0001

 

Old (17-19d)

3.39

2.35-4.90

< 0.0001

Species

    

Species

    
 

An. arabiensis

1.00

   

An. arabiensis

1.00

  
 

An. gambiae S-form

0.04

0.01-0.19

< 0.0001

 

An. gambiae S-form

1.56

0.97-2.51

0.065

 

An. gambiae M-form

0.13

0.04-0.43

0.0007

 

An. gambiae M-form

0.93

0.41-2.10

0.855

Treatment

         
 

LLIN#1

1.00

       
 

LLIN#2

5.58

2.97-10.5

0.001

     
 

LLIN#3

1.06

0.56-2.00

0.987

     
  1. IRS = indoor residual spraying; LLIN = long-lasting insecticide net
  2. *OR = odds ratio
  3. #CI = confidence interval
  4. λSmall weighted constant added to cells contributing to the zero cell count in the younger age-group for LLIN#1
  5. a = A total of 28 isofemale lines were tested against three LLINs
  6. b = A total of 30 isofemale lines were exposed to three walls sprayed with bendiocarb (0.1%)