Table 4.

Application of less specific screening tools for incident NPC in high-risk multiplex Taiwanese family members (40+ years of age)

IgA marker5-year NPC riskSensitivitySpecificityNo. of screened/NPC caseNo. of screen-positive/NPC case
VCAp18762/100,00082%20%160128
VCAp18 + EBNA1762/100,00081%54%16275