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Table 3 Association between explanatory variables and the odds ratio of having any Vgsc-1014 mutation

From: Emergence of knock-down resistance in the Anopheles gambiae complex in the Upper River Region, The Gambia, and its relationship with malaria infection in children

Variable Proportion with any Vgsc-1014 mutation n/N (%) Univariable analysis (adjusted for clustering on village) Multivariable analysis
OR 95% CI p value OR 95% CI p value
Species
 An. arabiensis 1137/3997 (28.4%) 1      
 An. gambiae s.s. 751/835 (89.9%) 20.31 15.92–25.91 < 0.001 18.49 14.48–23.61 < 0.001
 An. coluzzii 178/691 (25.8%) 0.84 0.70–1.02 0.08 0.76 0.63–0.92 0.004
Study arm
 LLIN only 1065/3287 (32.4%) 1      
 DDT-IRS and LLIN 1037/2302 (45.0%) 1.50 1.04–2.17 0.03 1.27 1.03–1.55 0.02
Year
 2010 1388/4164 (33.3%) 1      
 2011 714/1425 (50.1%) 2.08 1.82–2.37 < 0.001 1.80 1.56–2.09 < 0.001
Distance from the river (km) 1.13 1.08–1.18 < 0.001    
Bank of River Gambia
 North 975/2863 (34.1%) 1      
 South 1127/2726 (41.3%) 1.60 1.10–2.33 0.02    
Parity in village (%) 1.19 0.07–21.47 0.91    
Mean female An. gambiae s.l. density trap/night/village 0.94 0.86–1.03 0.17    
LLIN use in village (%) 0.70 0.02–22.22 0.84    
  1. CI confidence interval, OR odds ratio