CD79A and nasopharyngeal carcinoma: In the non-NPC participants who met the high-risk criteria at baseline, the cumulative probability of seroconversion within 5 years was also high, with 33.8% (95% CI 25.4%–42.3%) for the participants with a VCA-IgA ≥1:40, 42.0% (95% CI 31.2%–52.8%) for those with both VCA-IgA- and EA-IgA-positive, and 44.5% (95% CI 36.1%–52.9%) for those fulfilling one of the two high-risk criteria that indicated conversion within 5 years.