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BRAIN
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Incidence and Mortality Summary |
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| Male | Female | Total | |||
| Age-adjusted incidence rate per 100,000 # of new invasive cases # of new in-situ cases # of deaths |
7.5 47 - 40 |
5.7 38 1 25 |
6.6 |
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Total Cases by County |
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| Ada Adams Bannock Bear Lake Benewah Bingham Blaine Boise Bonner Bonneville Boundary Butte Camas Canyon Caribou |
23 0 6 0 0 6 1 1 3 6 0 0 0 5 0 |
Cassia Clark Clearwater Custer Elmore Franklin Fremont Gem Gooding Idaho Jefferson Jerome Kootenai Latah Lemhi |
1 0 0 2 1 0 2 0 1 0 3 0 11 4 0 |
Lewis Lincoln Madison Minidoka Nez Perce Oneida Owyhee Payette Power Shoshone Teton Twin Falls Valley Washington Unknown |
0 |
| Age | This is the second most common cancer among children, following leukemia. Adult malignant brain tumors are most common after age 60. |
| Gender | Males have higher rates than females. |
| Race & SES* | The incidence rate is higher in Caucasians and higher social classes. |
| Occupation | Many occupational and environmental exposures have shown suggestive associations with elevated rates of brain cancer, including radiation, vinyl chloride, and agricultural chemicals. Studies about these associations are still inconclusive. |
| Genetics | Certain genetic factors may cause an increased risk of some malignant brain tumors. |
| Other | Human Immunodeficiency Virus (HIV) infected individuals have a much increased risk of developing brain lymphoma. |
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Mean age-adjusted incidence rate across health districts: 95% confidence interval on the mean age-adjusted incidence rate: Median age-adjusted incidence rate of health districts: Range of age-adjusted incidence rate for health districts: SEER rate (1991-1995): |
6.5 4.9-8.2 7.0 3.1-9.0 5.7 |
The age-related incidence of brain cancer is typically bimodal, usually with a peak in infancy and childhood, a gradual rise in young adulthood, and a broader, sustained peak during the fifth to eighth decade of life. This trend is difficult to discern in Idaho’s population due to the relatively small number of cases observed annually, which increases the variability in age-specific rates. No health districts had significantly more cases than expected based upon rates for the remainder of Idaho.
