Table 4.
Multivariable Regression for Factors Associated with MDRO Colonization in NH Residents based on Nares and Skin Swabs
| Variable* | OR (95% CI) | P Value |
|---|---|---|
| Any MDRO† | ||
| Bed bound | 2.0 (1.4, 3.0) | <.001 |
| Urinary catheter | 2.5 (1.3, 4.9) | .007 |
| GI device | 1.8 (1.1, 3.0) | .03 |
| History of MRSA | 2.0 (1.1, 3.5) | .02 |
| NH mean ADL Index | 6.7 (1.0, 39.9) | .04 |
| NH % Medicaid‡ | 1.2 (1.0, 1.4) | .03 |
| NH total beds | 0.9 (0.9, 1.0) | .04 |
| Any MRSA§ | ||
| Bed bound | 1.7 (1.2, 2.2) | <.001 |
| Urinary catheter | 1.8 (1.1, 2.8) | .01 |
| Diabetes | 1.4 (1.1, 1.8) | .01 |
| Age per decade | 1.1 (1.0, 1.2) | .03 |
| History of MRSA | 1.6 (1.0, 2.4) | .03 |
| Any VRE∥ | ||
| Wounds | 2.2 (1.3, 3.8) | .01 |
| Central venous catheter | 3.0 (1.1, 8.3) | .03 |
| Urinary catheter | 2.1 (1.1, 4.1) | .03 |
| NH annual admissions | 1.1 (1.0, 1.1) | .01 |
| Any ESBL** | ||
| Incontinence of stool | 1.8 (1.4, 2.3) | <.001 |
| GI device | 1.7 (1.3, 2.4) | <.001 |
| Urinary catheter | 1.5 (1.0, 2.3) | .05 |
| History of ESBL | 4.8 (3.3, 6.9) | <.001 |
| Any CRE†† | ||
| Central venous catheter | 25.4 (3.3, 197.4) | .002 |
| GI device | 42.7 (8.7, 208.4) | <.001 |
Models accounted for clustering at the resident and NH level. Variables were entered into the model unless there was evidence of collinearity.
Only significantly associated variables are shown. Model also adjusts for resident characteristics including gender, age, length of stay, diabetes status, history of VRE, presence of wounds, and presence of a central venous catheter. Model also adjusts for NH characteristics including mean Elixhauser comorbidity score, occupancy ratio, CMS 5-star quality rating, mean ADL index, and proportion of residents whose primary insurance is Medicare (% Medicare).
% Medicaid refers to the proportion of residents whose primary insurance is Medicaid.
Only significantly associated variables are shown. Model also adjusts for gender, length of stay, history of MRSA, history of ESBL, presence of a GI device, presence of wounds, facility mean ADL index, facility percentage Medicare-insured, and facility percentage Medicaid-insured.
Only significantly associated variables are shown. Model also adjusts for diabetes status, history of VRE, history of MRSA, and history of ESBL.
Only significantly associated variables are shown. Model also adjusts for gender, age, length of stay, history of MRSA, presence of wounds, presence of a central venous catheter, NH facility total beds, facility percentage Medicare-insured, and facility percentage Medicaid-insured.
Only significantly associated variables are shown. Model also adjusts for age and history of VRE.