Predictors of Staphylococcus aureus Colonization and Results after Decolonization
Table 4
Estimated odds ratios for patient acquiring S. aureus colonization, according to final multivariate logistic regression models.
Model, independent variables
Estimated odds ratio
95% confidence interval
value
Methicillin-sensitive S. aureus
Age, per unit increase
0.988
(0.981, 0.995)
0.001
BMI, per unit increase
1.01
(1.00, 1.02)
0.578
CHF (versus no CHF)
0.662
(0.376, 1.10)
0.112
DM without complication (versus DM with complication)
0.707
(0.425, 1.12)
0.145
Female (versus male)
0.716
(0.610, 0.840)
<0.001
Hospital site #1 (versus hospital site #3)
0.720
(0.603, 0.858)
<0.001
Hospital site #2 (versus hospital site #3)
0.670
(0.526, 0.847)
<0.001
Methicillin-resistant S. aureus
Infection (versus no infection)
0.101
(0.00951, 2.20)
0.119
CHF (versus no CHF)
0.298
(0.168, 0.568)
<0.001
DM without complication (versus DM with complication)
0.583
(0.309, 1.22)
0.144
CKD (versus no CKD)
3.72
(1.12, 23.1)
0.0289
Hospital site #3 (versus hospital site #2)
0.653
(0.410, 1.02)
0.0593
Hospital site #1 (versus hospital site #2)
0.677
(0.428, 1.04)
0.0783
Previous Inpatient stay within 1 year (versus none)
0.619
(0.448, 0.858)
0.0032
Denotes statistical significance. Age and BMI were analyzed as continuous variables. All other factors were analyzed as categorical variables. Only those variables which met minimum Akaike information criterion are listed in this table. BMI: body mass index, CHF: congestive heart failure, CKD: chronic kidney disease, and DM: diabetes mellitus.
