Table 2
Age-standardized incidence rates (ASIRs) and rate ratios of colorectal cancer, by age group and area of residence at diagnosis, Ontario, 1998 to 2009

Table 2.
Age-standardized incidence rates (ASIRs) and rate ratios of colorectal cancer, by age group and area of residence at diagnosis, Ontario, 1998 to 2009
Table summary
This table displays the results of Age-standardized incidence rates (ASIRs) and rate ratios of colorectal cancer. The information is grouped by Age group and area of residence at diagnosis (appearing as row headers), Number of cases, ASIR per 100,000 , 95% confidence interval and Rate ratio (appearing as column headers).
Age group and area of residence at diagnosis	Number of cases	ASIR per 100,000	95% confidence interval		Rate ratio	95% confidence interval
Age group and area of residence at diagnosis	Number of cases	ASIR per 100,000	from	to	Rate ratio	from	to
Younger than 50
Low-Aboriginal identity^Note †	6,285	5.3	5.2	5.5	1.00	Note ...: not applicable	Note ...: not applicable
High-Aboriginal identity	48	7.6^Note *	5.6	10.1	1.43^Note *	1.05	1.90
On reserve	22	6.5	4.0	9.8	1.21	0.76	1.83
50 to 74
Low-Aboriginal identity^Note †	46,350	144.3	143.0	145.7	1.00	Note ...: not applicable	Note ...: not applicable
High-Aboriginal identity	303	211.6^Note *	188.1	237.1	1.47^Note *	1.30	1.64
On reserve	133	174.3^Note *	145.6	207.0	1.21^Note *	1.01	1.43
75 or older
Low-Aboriginal identity^Note †	31,044	366.9	362.8	371.0	1.00	Note ...: not applicable	Note ...: not applicable
High-Aboriginal identity	127	500.4^Note *	416.9	595.7	1.36^Note *	1.14	1.62
On reserve	44	368.3	266.9	495.9	1.00	0.73	1.35
Total
Low-Aboriginal identity^Note †	83,679	50.1	49.7	50.4	1.00	Note ...: not applicable	Note ...: not applicable
High-Aboriginal identity	478	71.5^Note *	65.1	78.3	1.43^Note *	1.30	1.56
On reserve	199	57.0	49.2	65.7	1.14	0.98	1.31
... not applicable Note † reference group Return to note † referrer Note * significantly different from reference group (p < 0.05) Return to note * referrer Note: Rates are standardized to age distribution of 1991 Canadian population. Sources: Ontario Cancer Registry 2012 (Cancer Care Ontario); 2001 Census of Canada; 2006 Census of Canada.

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