Table 2.
Bivariate Analysis of Factors Associated with Carriage of Community Methicillin-Resistant Staphylococcus aureus (MRSA) Strains
| Variable | ORa | P |
|---|---|---|
| Nursing home characteristic | ||
| Median length of stay | 1.0 | .4 |
| Hotel-type costs per bed (in $1,000s) | 1.0 | .7 |
| Skilled nursing costs per bed (in $1,000s) | 0.9 | .7 |
| Total healthcare costs per bed (in $1,000s) | 1.0 | .9 |
| Demographics, % of all facility residents | ||
| Age under 65 years | 1.3 | <.001 |
| Hispanic ethnicity | 1.4 | <.001 |
| Less than high school education | 1.2 | .1 |
| Comorbidities, % of all facility residents | ||
| Diabetes | 1.2 | .2 |
| Congestive heart failure | 0.9 | .8 |
| Dementia | 0.8 | .1 |
| Chronic obstructive pulmonary disease | 1.1 | .8 |
| Renal failure | 0.9 | .7 |
| Cancer | 0.4 | .002 |
| Skin lesions | 0.9 | .05 |
| Fecal incontinence | 1.2 | .06 |
| Poor locomotion | 0.7 | .001 |
| Functional status, average score among all facility residents | ||
| High facility RUG score | 1.2 | .60 |
| Isolate characteristic | ||
| MRSA isolate obtained at admission | 0.8 | .19 |
a
Odds ratios (ORs) for all variables are expressed per 10% increase except facility resource utilization group (RUG) score (which was dichotomized around the median value) and cost variables (which are expressed per thousand dollars).