Efficacy of stool multiplex polymerase chain reaction assay in adult patients with acute infectious diarrhea

Table 2 Comparison of patient characteristics according to stool polymerase chain reaction positivity

	Positive stool PCR	Negative stool PCR	P value
Age (yr)	50.4 ± 20.5	50.5 ± 20.3	0.97
Male [n (%)]	76 (38.6)	92 (45.3)	0.145
WBC count (103/μL)	9968.8 ± 5165.1	9098.1 ± 4394	0.145
CRP (mg/L)	109.8 ± 83.5	47.7 ± 68.9	0.0001
Fever > 38°C [n (%)]	101 (51.3)	47 (23.2)	0.0001
Hospital days	5.9 ± 4.1	6.2 ± 5.1	0.733
Fever duration (d)	0.7 ± 0.9	0.4 ± 0.9	0.0001
Diarrhea duration (d)	3.8 ± 4.3	4.3 ± 4.8	0.772
Calprotectin (mg/kg)	1124.5 ± 816.9	609 ± 713.2	0.001
Colitis on sigmoidoscopy [n (%)]	49/65 (75.4)	29/72 (39.7)	0.0001

Data are presented as mean ± SD. PCR: Polymerase chain reaction; WBC: White blood cell; CRP: C-reactive protein.