Table 3. The annual percent change of colorectal cancer incidence rate by age in Beijing between 1998 and 2012.

Age	Trend
	Year	APC (%)	95% CI	P
0–45 years	1998–2012	2.8	[1.3, 4.4]	0.00
46–60 years	1998–2004	11.5	[7.6, 15.5]	0.00
	2004–2012	2.6	[0.3, 5.0]	0.03
61–75 years	1998–2006	5.8	[3.8, 7.8]	0.00
	2006–2012	0.7	[−2.2, 3.7]	0.61
75+ years	1998–2006	10.3	[9.0, 11.5]	0.00
	2006–2012	0.3	[−1.5, 2.1]	0.71