PURPOSE: The objective of this study was to assess survival and prognostic factors for anal carcinoma in the population. METHODS: Patients with squamous-cell carcinoma of the anal canal were identified from the National Cancer Data Base (1985-2000). Univariate and multivariable methods were used to assess factors associated with survival. Concordance was calculated to assess agreement between American Joint Committee on Cancer stage and actual outcome. RESULTS: Nineteen thousand one hundred ninety-nine patients with anal carcinoma were identified (Stage I, 25.3 percent; Stage II, 51.8 percent; Stage III, 17.1 percent; Stage IV, 5.7 percent). Overall five-year survival was 58.0 percent. The American Joint Committee on Cancer (6th edition) staging system provided good survival discrimination by stage: I, 69.5 percent; II, 59.0 percent; III, 40.6 percent; and IV, 18.7 percent (concordance index, 0.663). On multivariable analysis, patients with anal carcinoma had a higher risk of death if they were male, >or=65 years old, black, living in lower median incomes areas, and had more advanced T stage tumors, nodal or distant metastases, or poorly differentiated cancers (P < 0.0001). There was not a significant difference in survival by hospital type or year of diagnosis. CONCLUSION: Although tumor characteristics and staging affect prognosis, patient factors, such as gender, race, and socioeconomic status, are also important prognostic factors for squamous-cell carcinoma of the anal canal.
PURPOSE: The objective of this study was to assess survival and prognostic factors for anal carcinoma in the population. METHODS:Patients with squamous-cell carcinoma of the anal canal were identified from the National Cancer Data Base (1985-2000). Univariate and multivariable methods were used to assess factors associated with survival. Concordance was calculated to assess agreement between American Joint Committee on Cancer stage and actual outcome. RESULTS: Nineteen thousand one hundred ninety-nine patients with anal carcinoma were identified (Stage I, 25.3 percent; Stage II, 51.8 percent; Stage III, 17.1 percent; Stage IV, 5.7 percent). Overall five-year survival was 58.0 percent. The American Joint Committee on Cancer (6th edition) staging system provided good survival discrimination by stage: I, 69.5 percent; II, 59.0 percent; III, 40.6 percent; and IV, 18.7 percent (concordance index, 0.663). On multivariable analysis, patients with anal carcinoma had a higher risk of death if they were male, >or=65 years old, black, living in lower median incomes areas, and had more advanced T stage tumors, nodal or distant metastases, or poorly differentiated cancers (P < 0.0001). There was not a significant difference in survival by hospital type or year of diagnosis. CONCLUSION: Although tumor characteristics and staging affect prognosis, patient factors, such as gender, race, and socioeconomic status, are also important prognostic factors for squamous-cell carcinoma of the anal canal.
Authors: Danielle S Bitterman; David Grew; Ping Gu; Richard F Cohen; Nicholas J Sanfilippo; Cynthia G Leichman; Lawrence P Leichman; Harvey G Moore; Heather T Gold; Kevin L Du Journal: J Gastrointest Oncol Date: 2015-10
Authors: Gwendolyn P Quinn; Julian A Sanchez; Steven K Sutton; Susan T Vadaparampil; Giang T Nguyen; B Lee Green; Peter A Kanetsky; Matthew B Schabath Journal: CA Cancer J Clin Date: 2015-07-17 Impact factor: 508.702
Authors: Kunal Suradkar; Emmanouil E Pappou; Steven A Lee-Kong; Daniel L Feingold; Ravi P Kiran Journal: Int J Colorectal Dis Date: 2017-12-21 Impact factor: 2.571