TABLE 4.

Risk factors for MRSA colonization compared to MSSA colonization and no S. aureus colonization by multivariate analysis using polytomous logistic regression

Risk factor	MRSA vs No_Ca		MRSA vs MSSA		P value of overall model
	Odds ratio (95% confidence interval)	P value of coefficient	Odds ratio (95% confidence interval)	P value of coefficient
Presence of household members aged under 7	2.2387 (1.5255-3.2853)	<0.0001	2.9110 (1.9048-4.4488)	<0.0001	<0.0001
Smoking habits	0.4419 (0.2383-0.8195)	0.0096	0.9582 (0.4946-1.8563)	0.8994	<0.0001
Using antibiotics within the past year	2.0530 (1.3544-3.1118)	0.0007	2.0322 (1.2826-3.2198)	0.0025	0.0031

^aNo_C, no S. aureus colonization.