Skip to main content

Table 4 Odds ratio (OR) and relative bug abundance (RA) for house infestation and bug abundance of T. infestans at 1 year post-spraying according to several determinants in Avia Terai, 2016–2017

From: Improved vector control of Triatoma infestans limited by emerging pyrethroid resistance across an urban-to-rural gradient in the Argentine Chaco

Variable

Infestation

Bug abundance

OR

95% CI

RA

95% CI

Baseline infestation

 Not infested

1.00

–

1.00

–

 Infested

3.31

1.99–5.53*

3.80

1.16–12.46*

 Not inspecteda

0.61

0.27–1.40

4.00

0.95–16.84

Initial house spraying

 Not sprayed

1.00

–

1.00

–

 Sprayed

0.99

0.53–1.86

0.92

0.95–16.84

Baseline risk index

 Low-risk house

1.00

–

1.00

–

 High-risk house

2.95

1.42–6.11*

23.81

5.27–107.59*

 Non-participatinga

2.73

1.16–6.39*

2.16

0.79–5.96

Environment

 Rural

1.00

–

1.00

–

 Peri-urban

1.50

0.92–2.45

1.23

0.45–3.37

 Urban

0.40

0.23–0.70*

0.31

0.12–0.79*

  1. Number of houses, 1471
  2. aIncludes houses that were closed, refused access to premises, vacant or built after the baseline survey, in which the index could not be determined
  3. *Statistically significant, P < 0.05
Back to article page

Parasites & Vectors

ISSN: 1756-3305

Contact us