Table 2.

Range of quantitative data specific to cytomegalic cell counts per area of colonic tissue biopsy(cell/mm²) and copies per milliliter from tissue, stool, and plasma CMV-PCR compared among patients with CMV colitis, patients with non-CMV colitis, and asymptomatic volunteers

Study group	Variables	Minimum (0th percentile)	25th percentile	Median (50th percentile)	75th percentile	Maximum (100th percentile)
CMV colitis	Cytomegalic cells, cells/mm2	1.46	4.57	6.26	7.97	11.82
	Tissue, copies/mL	0	3,040	56,199	979,107	29,463,461
	Stool, copies/mL	0	0	2,357	6,626	425,317
	Plasma, copies/mL	0	0	345	25,900	283,000
Non-CMV colitis	Cytomegalic cells, cells/mm2	0	0	0	0	0
	Tissue, copies/mL	0	0	0	0	1,992,358
	Stool, copies/mL	0	0	0	0	43,793
	Plasma, copies/mL	0	0	0	0	13,400
Asymptomatic volunteers	Cytomegalic cells, cells/mm2	0	0	0	0	0
	Tissue, copies/mL	0	0	0	0	0
	Stool, copies/mL	0	0	0	0	0
	Plasma, copies/mL	0	0	0	0	0

CMV, cytomegalovirus; PCR, polymerase chain reaction.