Table 6.
Biannual Percent Change in Age-Specific CRC Incidence Rates Among Females, 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 | +3.1 | 0.093 | +5.4 | 0.144 | +5.7 | 0.372 | −0.2 | 0.924 |
| 30–39 | +5.9 | <0.001 | +4.7 | 0.089 | +5.2 | <0.001 | +7.0 | 0.007 |
| 40–49 | +4.1 | <0.001 | +1.1 | 0.060 | +5.0 | <0.001 | +5.8 | <0.001 |
| 50–59 | −2.0 | 0.007 | −2.3 | 0.005 | −2.3 | 0.005 | −1.5 | 0.185 |
| 60–69 | −4.3 | <0.001 | −2.6 | 0.003 | −6.1 | <0.001 | −5.4 | <0.001 |
| 70–79 | −4.1 | <0.001 | −1.7 | 0.003 | −7.3 | <0.001 | −6.0 | <0.001 |
| ≥80 | −5.5 | <0.001 | −3.3 | <0.001 | −8.7 | <0.001 | −7.5 | <0.001 |
| African American | ||||||||
| 20–29 | +7.0 | 0.297 | +3.4 | 0.690 | *** | *** | +3.2 | 0.480 |
| 30–39 | +1.2 | 0.642 | +1.9 | 0.470 | +2.4 | 0.395 | −1.3 | 0.807 |
| 40–49 | −1.2 | 0.265 | −2.6 | 0.139 | +1.6 | 0.412 | −2.3 | 0.531 |
| 50–59 | −1.2 | 0.333 | +0.4 | 0.764 | −1.3 | 0.439 | −3.6 | 0.027 |
| 60–69 | −2.0 | 0.020 | +1.0 | 0.229 | −5.8 | 0.002 | −4.2 | 0.005 |
| 70–79 | −3.0 | 0.009 | −0.6 | 0.643 | −5.7 | <0.001 | −7.4 | 0.003 |
| ≥80 | −4.3 | <0.001 | −2.8 | 0.003 | −6.3 | <0.001 | −6.7 | 0.002 |
| Hispanic | ||||||||
| 20–29 | +7.8 | <0.001 | −0.5 | 0.946 | +15.9 | 0.042 | +10.5 | 0.028 |
| 30–39 | +4.7 | <0.005 | +6.5 | 0.004 | +5.1 | 0.137 | +4.1 | 0.053 |
| 40–49 | +1.5 | 0.263 | +1.8 | 0.507 | +1.6 | 0.409 | +1.1 | 0.348 |
| 50–59 | +0.5 | 0.545 | +1.9 | 0.254 | −0.9 | 0.498 | +0.2 | 0.892 |
| 60–69 | −0.9 | 0.225 | +2.6 | 0.173 | −1.4 | 0.297 | −3.9 | <0.001 |
| 70–79 | −2.0 | 0.004 | +2.5 | 0.018 | −6.7 | <0.001 | −4.4 | 0.012 |
| ≥80 | −4.1 | 0.002 | −2.3 | 0.140 | −6.9 | 0.004 | −5.6 | <0.001 |
| Asian/Pacific Islander | ||||||||
| 20–29 | −2.4 | 0.670 | −3.9 | 0.444 | −1.6 | 0.817 | −8.0 | 0.221 |
| 30–39 | +2.8 | 0.219 | +3.5 | 0.312 | +13.6 | 0.058 | −1.0 | 0.752 |
| 40–49 | +2.8 | 0.007 | +2.5 | 0.237 | +6.2 | 0.017 | −0.2 | 0.838 |
| 50–59 | +0.7 | 0.439 | +5.1 | 0.005 | −0.1 | 0.941 | −1.1 | 0.151 |
| 60–69 | −0.8 | 0.337 | +1.4 | 0.202 | +0.8 | 0.552 | −4.8 | <0.001 |
| 70–79 | −1.2 | 0.155 | +0.7 | 0.570 | −2.1 | 0.042 | −2.8 | 0.060 |
| ≥80 | −3.7 | <0.001 | −0.3 | 0.790 | −5.8 | <0.001 | −5.7 | 0.005 |
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.
Note. “***”=insufficient cases to estimate BAPC.
BAPC, biannual percent change; CRC, colorectal cancer.