Table 5.

Biannual Percent Change in Age-Specific CRC Incidence Rates Among Males, by Anatomic Subsite, California Cancer Registry, 1988–2009

	Total CRC		Proximal colon cancer		Distal colon cancer		Rectal cancer
	BAPC	p-value	BAPC	p-value	BAPC	p-value	BAPC	p-value
Caucasian
20–29	+4.6	0.025	+6.0	0.219	−0.4	0.938	+9.4	0.006
30–39	+4.7	<0.001	+1.4	0.421	+4.4	0.002	+8.3	<0.001
40–49	+3.2	<0.001	+1.2	0.108	+2.6	0.026	+5.3	<0.001
50–59	−1.9	<0.001	−2.0	<0.001	−2.6	<0.001	−1.2	0.083
60–69	−5.3	<0.001	−2.9	<0.001	−7.4	<0.001	−5.8	<0.001
70–79	−5.6	<0.001	−3.3	<0.001	−8.2	<0.001	−6.3	<0.001
≥80	−7.5	<0.001	−5.7	<0.001	−9.2	<0.001	−9.3	<0.001
African American
20–29	−2.3	0.651	−7.0	0.157	−3.5	0.666	−0.6	0.860
30–39	+2.8	0.234	0.0	0.993	+3.5	0.406	+4.4	0.371
40–49	−0.2	0.902	−2.3	0.168	−2.2	0.501	+5.3	0.062
50–59	−0.7	0.486	−0.5	0.592	−0.8	0.546	−1.8	0.345
60–69	−2.3	0.004	+1.8	0.121	−5.6	<0.001	−5.9	0.002
70–79	−4.5	<0.001	−2.2	0.039	−6.4	<0.001	−6.5	0.006
≥80	−4.8	0.002	−4.1	0.031	−7.9	0.005	−2.9	0.111
Hispanic
20–29	+3.5	0.064	+3.0	0.390	+5.2	0.555	+5.0	0.217
30–39	+4.9	0.005	+4.0	0.116	+10.4	<0.001	+4.1	0.105
40–49	+4.0	<0.001	+2.4	0.095	+4.9	<0.001	+4.6	0.005
50–59	+2.2	0.015	+3.1	0.038	+3.2	0.070	+1.2	0.109
60–69	−0.8	0.079	+1.9	0.016	−0.8	0.299	−2.8	<0.001
70–79	−1.6	0.023	+0.2	0.777	−3.0	0.024	−2.4	0.007
≥80	−3.5	0.002	−2.2	0.108	−2.0	0.334	−6.8	0.002
Asian/Pacific Islander
20–29	−2.0	0.437	−3.0	0.617	+5.8	0.136	−11.9	0.015
30–39	+0.7	0.690	+5.1	0.126	+0.4	0.921	−0.4	0.901
40–49	+3.4	0.020	−0.6	0.791	+4.7	0.018	+5.9	0.009
50–59	+1.5	0.062	+3.3	0.037	−0.1	0.950	+2.3	0.007
60–69	−2.9	0.002	+1.2	0.501	−3.2	0.033	−4.5	<0.001
70–79	−2.9	0.004	−0.5	0.695	−3.4	0.014	−4.6	<0.001
≥80	−6.4	<0.001	−3.3	0.041	−8.4	<0.001	−6.7	<0.001

Note. BAPC is rounded to the nearest tenth; probabilities are rounded to three places, with a floor of 0.001.

Note. Probabilities given for the BAPC are from tests that the slope of the regression line is zero.

BAPC, biannual percent change; CRC, colorectal cancer.