TABLE 2.

Sensitivities and specificities of different threshold levels of CMV DNA load in plasma^a

Group	Threshold CMV DNA level (copies/ml) in plasma as reference	Sensitivity (%)	Specificity (%)	Optimal CMV DNA levelb (% sensitivity, % specificity)
SCT recipients	102	98	48	1.00 × 104 (83, 82)
	103	98	56
	104	83	82
SOT recipients	102	99	72	5.37 × 103 (87, 90)
	103	98	78
	104	80	93
SCT and SOT recipients	102	99	66	1.00 × 104 (81, 90)
	103	98	72
	104	81	90

^aROC analysis was performed by using the outcome of more than three positive cells in the pp65 antigenemia test as the value indicating which category should be considered positive. SOT and SCT recipients were considered as one group as well as separately.

^bValues are numbers of copies per milliliter.