Table 2. Estimation of protection of households by the VL intervention using longitudinal logistic regression model with and without adjustment for confounders, Bangaladesh, 2006–2010*.
Model; parameter | Odds ratio (95% CI) | Estimated protection by intervention at household level, % (95% CI) | p value |
---|---|---|---|
Simple, without adjustment for confounders; intervention |
0.13 (0.030–0.557) |
87 (44.3–97.0) |
0.006 |
Full model, with adjustments for confounders | |||
Intervention | 0.13 (0.03–0.56) | 87 (44.3–97.0) | 0.006 |
Family size >5 persons | 1.75 (0.99–3.11) | 0.054 | |
HH head occupation, labor | 2.38 (1.37–4.12) | 0.002 | |
Precarious (mud/thatched) house | 4.64 (0.56–38.69) | 0.156 | |
HH head without any knowledge of VL symptom | 0.25 (0.13–0.46) | <0.001 | |
HH head without any knowledge of VL transmission | 0.57 (0.33–0.98) | 0.042 | |
Having bed-net at home | 0.49 (0.12–1.98) | 0.319 | |
Use of bed-net for protection against mosquito bites | 2.57 (0.81–8.21) | 0.109 |
*The intervention effect and covariates are tested in 2 different panel logistic regression models; simple not controlling for any covariates, full model controlling for confounders. VL, visceral leishmaniasis; HH, household.