Table 2

Odds ratios (OR) from the logistic regression model with 95% confidence intervals (CI) used for the prediction of the probability of nasal carriage of Methicillin-resistant Staphylococcus aureus
Variable Crude OR (95% CI) Adjusted OR (95% CI) pW Score
Age 1.04 (1.02,1.05) 1.03 (1.01,1.05) < 0.001 Age - 10
Nursing home 5.94 (3.02,11.67) 3.00 (1.45,6.19) 0.003 37
Admission diagnosis: A or J 4.84 (2.24,10.45) 3.18 (1.39,7.28) 0.006 39
Emergency admission 2.58 (1.48,4.5) 1.93 (1.08,3.47) 0.028 22

Pw: p-value according to the Wald-Test. An initial score for a patient is calculated by subtracting 10 from age and adding values in column “Score”, if the corresponding variable is true. If prevalence differs from 2.3%, a correction score (Figure  5) has to be added.

Elias et al.

Elias et al. BMC Infectious Diseases 2013 13:111   doi:10.1186/1471-2334-13-111

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