Table 3.

Results of the Multivariate Logistic Regression Analysis Used to Determine the STAPH Score for Predicting a Staphylococcal Vertebral Infection^a

Variable	Adjusted OR	Beta Coefficient	95% CI	P Value	Points
Skin: atopic dermatitis	15.7	2.8	1.7–145	.015	3
Trauma	4.9	1.6	0.75–31.8	.096	2
Age < 67 years	3.1	1.1	1.1–8.6	.031	1
Abscess	3.0	1.1	0.78–11.2	.111	1
CV Port	5.1	1.6	0.98–26.7	.053	2
History of puncture	7.0	1.9	1.44–29.1	.019	2

Those with a P value <.05 are shown in bold text.

Abbreviations: CI, confidence interval; CV Port, central venous port catheter; OR, odds ratio.

^aThe STAPH score is based on the 6 items shown in the left column. One to 3 points are assigned to each item (shown in the right column), based on rounding of the beta-coefficient value, for a maximum possible score of 11.