Baseline characteristics, crude and age-adjusted incidence rates (1/100,000 person-years) of nasopharyngeal carcinoma (NPC) among 18,411 participants in the Sihui NPC screening cohort, Sihui, Guangdong, China (1987–2007).
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*Standardized to the distribution of person-time experienced by the entire cohort (5-year age groups).†After subjects were tested positive for IgA antibodies against EBV capsid antigen (VCA/IgA), tests for IgA antibodies against EBV early antigen (EA/IgA) were also performed. Eleven subjects did not have enough sera for EA/IgA test.
创建时间:
2015-12-02



