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* Incidence rates - per 100,000 population, age-adjusted to the 1970 U.S. standard population. Does not include in situ
colorectal cancer cases.
Incidence and Incidence Rates by Subsite and Race and Gender
For the years 1979 through 1997 combined, incidence rates were highest for cancers of the
proximal colon in all the race and gender groups except white males. Prior to 1984, however,
distal colon cancer incidence rates were higher than rates for the other two subsites in all four
groups. Over the nineteen year period, the incidence rates of proximal colon cancer increased
among all the race and gender groups and distal colon cancer declined among all the race and
gender groups. Rectal cancer decreased among white men and women, but increased among
black men and women. (See Figures 9 through 12 and Tables 29 through 32 in Appendix II.)
Figure 9
Colorectal Cancer Incidence Rates
By Subsite, White Males, New Jersey - 1979-1997*
*Age-adjusted to the 1970 U.S. standard population.
Figure 10
Colorectal Cancer Incidence Rates
By Subsite, White Females, New Jersey - 1979-1997*
*Age-adjusted to the 1970 U.S. standard population.
Figure 11
Colorectal Cancer Incidence Rates
By Subsite, Black Males, New Jersey - 1979-1997*
*Age-adjusted to the 1970 U.S. standard population.
Figure 12
Colorectal Cancer Incidence Rates
By Subsite, Black Females, New Jersey - 1979-1997*
*Age-adjusted to the 1970 U.S. standard population.
Age-Specific Incidence Rates by Subsite
For the years 1979 through 1997 combined, the incidence rates generally increased with
increasing age for all three subsites for all gender and race groups. Distal colon cancer had the
highest incidence rates in the younger age groups, but proximal colon cancer incidence rates
were greater than the other two subsites in the oldest age groups. (See Figures 13 though 16 and
Tables 33 through 36 in Appendix II.)
Figure 13
Age-Specific Colorectal Cancer Incidence Rates
By Subsite, White Males, New Jersey - 1979-1997
Figure 14
Age-Specific Colorectal Cancer Incidence Rates
By Subsite, White Females, New Jersey - 1979-1997*
Figure 15
Age-Specific Colorectal Cancer Incidence Rates
By Subsite, Black Males, New Jersey - 1979-1997
Figure 16
Age-Specific Colorectal Cancer Incidence Rates
By Subsite, Black Females, New Jersey - 1979-1997
Subsite Stage at Diagnosis - 1985-1997
Between the years of 1985 and 1997, the percent of proximal and distal colon cancers diagnosed
in the earlier stages (in situ and localized) generally increased for all gender and race groups.
For men of both races and white women, the percent of cases diagnosed at the in situ and
localized stages increased for colon cancer but decreased for rectal cancer. Black women were
diagnosed in the early stages at increasingly higher percentages for both colon and rectal cancer
between 1985 and 1997. Black men and white women showed the greatest increases in early
stage diagnoses for proximal and distal colon cancers. (See Figures 17 through 20 and Tables 37
through 48 in Appendix II).
Figure 17
Colorectal Cancer Percent Early Stage At Diagnosis
By Subsite, White Males, New Jersey - 1985-1997*
*in situ and localized stages
Figure 18
Colorectal Cancer Percent Early Stage At Diagnosis
By Subsite, White Females, New Jersey - 1985-1997*
*in situ and localized stages
Figure 19
Colorectal Cancer Percent Early Stage At Diagnosis
By Subsite, Black Males, New Jersey - 1985-1997*
*in situ and localized stages
Figure 20
Colorectal Cancer Percent Early Stage At Diagnosis
By Subsite, Black Females, New Jersey - 1985-1997*
*in situ and localized stages.
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