Research Article

Increasing Incidence of Colorectal Cancer in Young Adults

Figure 3

Trends in colon tumor subsite-specific incidence and mortality rates among individuals age 20–49 and 50 and older, 1980–2016.Age-adjusted incidence and mortality rates per 100,000 from 1980–2016 were derived from SEER9 program data and subdivided into proximal and distal colon tumor subsites using ICD-O-3 codes, to examine rates over time. Proximal and distal colon cancer incidence and IBM rates are depicted for age 20–49 (a, c) and 50 and older (b, d). Asterisks () designate statistical significance calculated in the permutation model.
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