Development of a prediction model for bacteremia in hospitalized adults with cellulitis to aid in the efficient use of blood cultures: a retrospective cohort study

Table 2 Clinical signs, laboratory findings, and outcomes of the 351 cellulitis cases

	All (n = 351)	Positive blood culture (n = 33)	Negative blood culture (n = 318)	Odds ratio (95 % CI)	p-value
Involvement of non-lower extremities	74 (21.1)	13 (39.4)	61 (19.2)	2.74 (1.29–5.82)	0.007
SIRS at admission	121 (34.5)	27 (81.8)	94 (29.6)	10.72 (4.29–26.82)	<0.001
WBC, 10⁹/L, mean (SD)	10.9 (5.1)	12.6 (6.5)	10.8 (4.9)	N/A	0.053
Lactic acid, mmol/L, mean (SD)	1.8 (1.2)	1.7 (0.9)	1.8 (1.2)	N/A	0.878
CRP, mg/dL, mean (SD)	7.3 (8.0)	9.8 (10.2)	7.0 (7.7)	N/A	0.149
GOT, IU/L, mean (SD)	33.2 (26.2)	36.3 (28.4)	32.9 (25.9)	N/A	0.544
GPT, IU/L, mean (SD)	31.6 (27.0)	33.8 (21.5)	31.4 (27.5)	N/A	0.616
Total bilirubin, mg/dL, mean (SD)	0.8 (1.0)	1.3 (1.8)	0.8 (0.7)	N/A	0.148
Prescription of antimicrobial agent prior to blood culture	7 (1.99)	1 (3.03)	6 (1.89)	1.63 (0.19–13.92)	0.655

The data are expressed as number (%) unless otherwise indicated
p-values were determined by chi-squared or Fisher’s exact tests, or by independent t-test
CI confidence interval, CRP C-reactive protein, GOT glutamate oxaloacetate transaminase, GPT glutamate pyruvate transaminase, SIRS systemic inflammatory response syndrome, SD standard deviation, WBC white blood cell count

ISSN: 1471-2334