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Table 4 Multivariate Linear Regression Analysis of Factors Associated with Nursing Home MRSA Point Prevalence and MRSA Transmission Risk

From: Nursing home characteristics associated with methicillin-resistant Staphylococcus aureus (MRSA) Burden and Transmission

Outcome: Facility MRSA Point Prevalence
Variable Absolute Change in MRSA Point Prevalence per absolute increase of 10% in variable(95% CI) p-value
High MRSA Admission Prevalencea 13.0 (4.3, 21.7) 0.005
% Residents with Indwelling Deviceb 1.8 (0.1,3.5) 0.04
Outcome: Facility MRSA Transmission
Variable Absolute Change in MRSA Transmission per absolute increase of 10% in variable(95% CI) p-value
% Residents with High Social Engagementc −2.0 (−3.8,-0.2) 0.03
% Residents with Diabetesd 3.6 (1.1,6.0) 0.01
  1. a MRSA admission prevalence was dichotomized at the median value (15%).
  2. b The presence of an indwelling device was collinear with the proportion of residents with fecal incontinence.
  3. c High social engagement score was defined as greater than or equal to 3 out of 6.
  4. d In the transmission model, the percentage of residents with diabetes was collinear with the percent of residents with less than a high school education.