borderline significantP ≤0.20
Risk factors significant or borderline significant ( P ≤0.20) in the univariate analyses were included in a multivariate random effects logistic regression model adjusting for the effect of household clustering.
Risk factors significant or borderline significant ( P ≤0.20) in the univariate analyses were included in a multivariate random effects logistic regression model adjusting for the effect of household clustering.