Skip to main content

Table 1 Estimated impact of trap type, intervention status, and the interaction between trap type and intervention status on An. minimus catches, for Eto R and VPSR.

From: A semi-field evaluation in Thailand of the use of human landing catches (HLC) versus human-baited double net trap (HDN) for assessing the impact of a volatile pyrethroid spatial repellent and pyrethroid-treated clothing on Anopheles minimus landing

 

Eto R

VPSR

Factor

OR (95% CI)

p

% protective efficacy

Factor

OR (95% CI)

p

% Protective efficacy

Mosquito captures in control HLC compared to control HDN

HDN

1

  

HDN

1

  

HLC

0.42 (0.34–0.51)

<0.0001

 

HLC

2.18 (1.74 – 2.72)

 < 0.001

 

Effect of intervention on landing when using HLC

Control

1

  

Control

1

  

ITC

0.30 (0.23, 0.40)

 < 0.001

70% (60–77)

decrease in odds of landing

VPSR

0.007 (0.005, 0.01)

 < 0.001

99.3% (99.0–99.5)

decrease in odds of landing

Effect of intervention on landing when using HDN

Control

1

  

Control

1

  

ITC

1.04 (0.85, 1.27)

0.69

4% (15% decrease to 27% increase in odds of landing)

VPSR

8.72e-14 (0, Inf)

0 mosquitoes were collected via HDN across all 8 replicates when using VPSR

0.99

100% (100 -Inf) decrease in odds of landing

OR for intervention measured by HDN compared to OR for intervention measured by HLC

(ratio of ORs)

ITC

3.17 (2.27, 4.43)

 < 0.001

 

VPSR

3.21 (0, Inf)

0.99

Â