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contentuptodate· Content· item f26_31_27131

©2013 UpToDate ® Print Email Outcome of anal cancer stratified by AJCC stage group and tumor histology (squamous vs. nonsquamous types) Stage group 5-year survival rate Squamous Nonsquamous p value I 71.4 59.1 0.003 II 63.5 52.9 0.001 IIIA 48.1 37.7 0.085 IIIB 43.2 24.4 0.003 IV 20.9 7.4 0.002 Source: National Cancer Database: Cases diagnosed 1998-1999: n = 3598. Used with the permission of the American Joint Committee on Cancer (AJCC), Chicago, Illinois. The original source for this material is the AJCC Cancer Staging Manual, Seventh Edition (2010) published by Springer New York, Inc.