Table 5.

Bivariate and Multivariate Linear Regression for Correlation With Procalcitonin

	Bivariate			Multivariate
Characteristics	Coefficienta	95% Confidence Interval	P value	Coefficienta	95% Confidence Interval	P value
Age	−0.01 ± 0.02	−0.05 to 0.03	0.678
Male	−0.80 ± 0.82	−2.45 to 0.86	0.337
BMI	0.00 ± 0.06	−0.11 to 0.12	0.948
Osteoarthritis	−0.36 ± 1.13	−2.62 to 1.91	0.753
Hyperlipidemia	−0.54 ± 0.83	−2.2 to 1.12	0.519
Septic arthritis	1.98 ± 0.72	0.55-3.42	0.008	2.18 ± 0.70	0.78-3.58	0.003
Other Infectionb	1.13 ± 0.75	−0.37 to 2.63	0.138
Bacteremiab	3.57 ± 0.84	1.89-5.26	<0.001	3.07 ± 0.87	1.32-4.83	0.001
Cellulitis	−0.47 ± 1.44	−3.37 to 2.42	0.744
Crystal Arthropathyb	1.04 ± 0.75	−0.47 to 2.54	0.174
Gout	0.01 ± 0.89	−1.77-1.79	0.991
Pseudogoutb	1.46 ± 0.89	−0.32 to 3.25	0.106	1.80 ± 0.83	0.14-3.46	0.034

^aReported as coefficient ± standard error.

^bVariables included in initial multiple linear regression. SA, bacteremia, and pseudogout were significant in the final model.