Characteristics Associated with Nonreceipt of Surveillance Testing and the Relationship with Survival in Stage II and III Colon Cancer.

Characteristics Associated with Nonreceipt of Surveillance Testing and the Relationship with Survival in Stage II and III Colon Cancer. Am J Epidemiol. 2020 Sep 09;: Authors: Hines RB, Jiban MJH, Lee E, Odahowski CL, Wallace AS, Adams SJE, Rahman SMM, Zhang S Abstract We investigated characteristics of colon cancer patients that predicted nonreceipt of post-treatment surveillance testing and the subsequent associations between surveillance status and survival outcomes. This was a retrospective cohort study of the Surveillance, Epidemiology, and End Results database combined with Medicare claims. Patients diagnosed between 2002-2009, with disease stages II-III, and between 66-84 years of age were eligible. A minimum of three years follow-up was required with patients categorized as having received any surveillance testing (Any Testing) vs. none (No Testing). Poisson regression was used to obtain risk ratios with 95% confidence intervals (CIs) for the relative likelihood of No Testing. Cox models were used to obtain subdistribution hazard ratios (sHR) with 95% CIs for 5- and 10-year cancer-specific and noncancer death. There were 16,009 colon cancer cases analyzed. Patient characteristics that predicted No Testing included older age, black race, stage III disease, and chemotherapy. No Testing patients experienced an increased rate of 10-year cancer death that was greater for stage III patients (sHR = 1.79, 95% CI: 1.48, 2.17) than stag...
Source: Am J Epidemiol - Category: Epidemiology Authors: Tags: Am J Epidemiol Source Type: research