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Table 2 Summary of bioefficacy results from Equatorial Guinea and Ghana

From: Multicentre studies of insecticide-treated durable wall lining in Africa and South-East Asia: entomological efficacy and household acceptability during one year of field use

Study site Mosquito species Wall substrate Time post-intervention (Months) Intervention % Mosquito mortality (Total tested) Adjusted Odds Ratio* (95% CI) for DL mosquito mortality relative to IRS P Value
Equatorial Guinea An. gambiae s.l. Wood 3 IRS 96.7 (150) 1  
DL 97.3 (150) 1.28 (0.31 – 5.18) 0.733
6 IRS 82.7 (150) 1  
DL 93.3 (150) 3.0 (1.25 – 7.21) 0.014
12 IRS 11.3 (150) 1  
DL 93.3 (150) 119.5 (47.2 – 302. 9) <0.0001
Ghana An. gambiae s.s. lab strain Mud 3 IRS 98.2 (493) 1  
DL 99.9 (998) 18.6 (2.23 – 155.4) 0.007
6 IRS 69.4 (509) 1  
DL 99.9 (966) 430.8 (59.6 – 3114.6) <0.0001
Concrete 3 IRS 99.8 (486) 1  
DL 99.9 (1026) 2.11 (0.13 – 33.8) 0.60
6 IRS 94.2 (536) 1  
DL 98.7 (1017) 24.2 (2.30 – 254.8) 0.008
An. gambiae s.s. field strain Mud 3 IRS 90.6 (862) 1  
DL 97.9 (1845) 4.93 (3.32 – 7.32) <0.0001
6 IRS 59.5 (975) 1  
DL 93.3 (1916) 9.52 (7.60 – 11.92) <0.0001
Concrete 3 IRS 96.2 (867) 1  
DL 96.7 (1809) 1.16 (0.76 – 1.79) 0.50
6 IRS 85.9 (783) 1  
     DL 95.4 (1835) 3.38 (1.61 – 7.08) 0.001
  1. *Values are adjusted for variation between house and bioassay replicate.