In contrast to most registries considered in this analysis, colorectal cancer incidence rates from 1983-87 to 1998-2002 decreased statistically significantly for US men and women, based on nine SEER registries, and for Canadian and New Zealand women. Rates were stable for Canadian and New Zealand men (Table 3, Fig. 3). Based on recent incidence data from the United States, colorectal cancer incidence rates continued to decrease through 2005 in both males and females (13, 14).