Figure 2.

Treatment of primary colon and rectal cancer by race. Colon cancer guideline concordant care (GCC) was defined as removal of at least 12 lymph nodes (LN) and all LN negative (American Joint Committee on Cancer stage I or low-risk stage II); or removal of fewer than 12 LN but the patient received adjuvant chemotherapy (high-risk stage II); or removal of at least 12 LN and 1 or more LN positive and the patient received adjuvant chemotherapy (stage III). Rectal cancer GCC was defined as receipt of neoadjuvant or adjuvant radiation in patients with either clinical stage II or III or pathologic stage II or III disease.