Table 2.

Demographic characteristics of patients with health care-associated and community-associated diarrhea with stool cultures that were positive for Klebsiella oxytoca^a

Parameter	Value for group		P value
	Community-associated diarrhea (n = 60)	Health care-associated diarrhea (n = 44)
Mean age (yr) ± SD	38.0 ± 31.7	50.2 ± 24.4	0.04
No. (%) of male patients	31 (51.7)	22 (50)	0.87
No. (%) of patients of Chinese ethnicity	54 (90)	43 (97.7)	0.12
No. (%) of patients residing in RCHE	2 (3.3)	0	0.22
No. (%) of patients with cytotoxin-producing strain	18 (30)	16 (36.4)	0.49
No. (%) of patients with underlying disease
Cerebrovascular accident	1 (1.7)	2 (4.5)	0.39
Chronic cardiopulmonary conditionsb	7 (11.7)	9 (20.5)	0.22
Chronic renal failure	4 (6.7)	3 (6.8)	0.98
Diabetes mellitus	5 (8.3)	2 (4.5)	0.45
Malignancy	10 (16.7)	17 (38.6)	0.39
Hematological parametersc
Mean white cell count (109 cells/liter) ± SD	11.3 ± 8.6	9.2 ± 6.6	0.19
Mean neutrophil count (109 cells/liter) ± SD	7.3 ± 6.0	7.0 ± 4.8	0.78
Mean lymphocyte count (109 cells/liter) ± SD	2.4 ± 2.7	1.2 ± 0.9	<0.01
Mean hemoglobin count (1012 cells/liter) ± SD	12.3 ± 2.2	10.9 ± 2.0	<0.01
Mean platelet count (109 cells/liter) ± SD	255 ± 127	224 ± 129	0.25
Biochemical parametersc
Mean urea level (mmol/liter) ± SD	6.9 ± 5.7	8.7 ± 8.7	0.22
Mean creatinine level (μmol/liter) ± SD	96 ± 142	144 ± 228	0.20
Mean albumin level (g/liter) ± SD	38 ± 9	32 ± 8	<0.01
Mean globulin level (g/liter) ± SD	30 ± 7	34 ± 8	0.04
Mean total bilirubin level (μmol/liter) ± SD	9.4 ± 9.2	21.0 ± 64.6	0.19
Mean alkaline phosphatase level (U/liter) ± SD	162 ± 129	153 ± 203	0.78
Mean alanine aminotransferase level (U/liter) ± SD	38 ± 43	35 ± 42	0.78
Mean aspartate aminotransferase level (U/liter) ± SD	54 ± 88	37 ± 29	0.24

^aRCHE, residential care homes for the elderly.

^bIncluding coronary artery disease, congestive heart failure, and chronic obstructive airway disease.

^cAt the time of K. oxytoca isolation.