Table 3. Univariate and multivariate logistic regression analysis: predictive value of laboratory findings for positive FDG PET/CT findings in patients with sepsis of unknown origin (n = 53).

Variable (presence or not, n)	Univariate analysis		Multivariate analysis
	OR (95% CI)	P	OR (95% CI)	P
Leukocytosis (Yes, 21)	1.500 (0.458–4.915)	0.503
Leukopenia (Yes, 9)	0.583 (0.135–2.511)	0.469
Anemia (Yes, 40)	2.000 (0.554–7.216)	0.290
Increased red blood cell distribution width (Yes, 31)	1.200 (0.380–3.788)	0.756
Thrombocytopenia (Yes, 24)	0.376 (0.117–1.211)	0.101
Gram-positive bacteremia (Yes, 34)	1.220 (0.376–3.957)	0.741
Normal AST (Yes, 34)	3.611 (1.088–11.984)	0.036*	6.134 (1.443–26.076)	0.014*
Increased Alk-P (Yes, 31)	3.429 (1.047–11.228)	0.042*	5.813 (1.386–24.376)	0.016*

OR, odds ratio; CI, confidence interval; AST, aspartate aminotransferase; Alk-P, alkaline phosphatase.

*indicates statistically significant results.