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Table 4 Logistic regression analysis for the estimated probability of detection of MRSA with the following risk factors in the LTCFs subgroup

From: Transmission of methicillin-resistant staphylococcus aureus in the long term care facilities in Hong Kong

  Estimate Standard error z value p value
(Intercept) −0.422 0.578 −0.729 0.46588
Presence of urinary catheter 2.125 0.660 3.219 0.00129
Chronic cerebral conditions 0.742 0.256 2.899 0.00374
Area (square feet) per person a −0.014 0.006 −2.648 0.0081
  1. LTCFs, long term care facilities; LTCFs subgroup, defined as LTCF residents who had not been hospitalized in the past 12 months; a area per person is defined as total area of the LTCFs over the number of resident occupying at the time of study.
  2. Note. The odds of a patient having MRSA decreased by exp (−0.14) ≈ 0.90 times with each 10 square feet increase in area (square feet) per person when the other risk factors of presence of urinary catheter and chronic cerebral conditions were held constant.