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Table 3 Firth logistic regression results analysing the effect of intervention on mosquito net use in intervention groups in mid-point and end-point surveys

From: The effect of small solar powered ‘Bͻkͻͻ’ net fans on mosquito net use: results from a randomized controlled cross-over trial in southern Ghana

LLIN use night before the survey

Intention to treat analysis (n = 354)

Per protocol analysis (n = 328)

OR

95% CI

OR

95% CI

Group membership

 Group 1

0.29

0.06–1.32

1.06

0.13–8.34

 Group 2 (reference)

1.00

 

1.00

 

Survey

 End of 2nd period

0.16*

0.03–0.74

0.09*

0.01–0.73

 End of 1st period (reference)

1.00

 

1.00

 

Intervention

 Received fans

3.24

0.70–14.92

1.17

0.15–9.22

 Did not receive fans (reference)

1.00

 

1.00

 

Constant

52.82**

11.46–243.42

142.37**

18.11–1119.01

Wald chi2

5.68

 

5.29

 
  1. Group 1 received fans during the first time period; group 2 received the fan console during the second time period (crossover)
  2. * p < 0.05
  3. ** p < 0.01