Skip to main content

Table 3 Multiple logistic regressions of domiciliary infestation with T. infestans and occurrence of T. cruzi infection, and negative binomial regressions of vector abundance and infected-vector abundance in domiciles in relation to household socio-economic and demographic characteristics in Area III of Pampa del Indio, Chaco, Argentina. (n = 77) at baseline

From: Inequalities in the social determinants of health and Chagas disease transmission risk in indigenous and creole households in the Argentine Chaco

Model Response variable Domiciliary infestation At least one infected vectora Vector abundancea Infected-vector abundancea
OR (95% CI) P OR (95% CI) P IRR (95% CI) P IRR (95% CI) P
A Social vulnerability index (2008) 1.9 (1.4–2.4) < 0.001** 1.3 (0.7–2.4) 0.4 3.6 (1.6–3.3) < 0.001** 2.0 (1.2–3.4) < 0.01*
Host availability index (2008) 1.5 (1.2–2.0) 0.001* 0.6 (0.4–1.2) 0.1 2.3 (1.6–3.3) < 0.001** 1.4 (0.9–2.1) 0.1
B Social vulnerability index (2008) 1.7 (1.3–2.4) 0.001* 1.7 (0.7–3.7) 0.2 3.0 (1.7–5.2) < 0.001** 4.4 (1.8–10.9) < 0.001*
Host availability index (2008) 1.7 (1.2–2.4) 0.004* 0.7 (0.3–1.6) 0.4 2.8 (1.8–4.1) < 0.001** 2.9 (1.3–6.4) 0.01*
Health access and sanitation index (2015) 0.7 (0.5–0.9) 0.04* 2.0 (0.9–4.3) 0.1 1.0 (0.6–1.5) 0.9 1.5 (0.7–3.6) 0.3
  1. aIn the domicile
  2. Notes: Model A included 386 households with infestation data and 77 households with vector infection data at baseline (2008). Model B included stable houses as of 2015 with infestation (n = 263) and vector infection data (n = 49)
  3. **P < 0.001, *0.001 ≤ P ≤ 0.05