Table 3.

Distribution of NPC Patients (N = 152) by Mean of EBV DNA Load.

EBV-DNA titer (copies/mL)		EBV-DNA- negative patients, n = 4 (2.63%)	EBV-DNA- positive patients, n = 148 (97.3%)
>0	<300	n.a	35 (23.03%)
	≥300	n.a	113 (74.34%)
Min		0	13
Max		0	383,000
Mean		0	12,327
SEM		0	3087

Abbreviations: EBV, Epstein Barr virus; n.a, not applicable; NPC, nasopharyngeal carcinoma; SEM, standard error of the mean.

^a Three levels of EBV DNA (0, <300, and ≥300 copies/mL) were used to categorize diagnosed participants.