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Incidence Rates of Appendiceal Adenocarcinoma Increasing

Physician's Weekly

The study included 4,858 persons aged 20 years or older when diagnosed with pathologically confirmed primary AA (nonmucinous, mucinous, goblet cell, or signet ring cell carcinoma) from 1975 to 2019. Twenty-one overlapping birth cohorts were created using five-year age groups and time periods (1891-1899 to 1991-1999).