1998 Report Index

ORAL CAVITY AND PHARYNX
Incidence and Mortality Summary
Male Female Total
Age-adjusted incidence
rate per 100,000

# of new invasive cases
# of new in-situ cases
# of deaths
13.8

87
1
17
4.9

37
0
10


9.1

124
1
27

Total Cases by County
Ada
Adams
Bannock
Bear Lake
Benewah
Bingham
Blaine
Boise
Bonner
Bonneville
Boundary
Butte
Camas
Canyon
Caribou
 25
1
9
0
1
3
0
0
2
5
0
1
0
14
2
Cassia
Clark
Clearwater
Custer
Elmore
Franklin
Fremont
Gem
Gooding
Idaho
Jefferson
Jerome
Kootenai
Latah
Lemhi
 2
0
0
0
0
4
2
3
1
2
2
3
15
2
1
Lewis
Lincoln
Madison
Minidoka
Nez Perce
Oneida
Owyhee
Payette
Power
Shoshone
Teton
Twin Falls
Valley
Washington
Unknown
 1
0
0
5
2
0
0
2
1
1
0
6
5
2

Risk and Associated Factors
Age Most cases occur in people over age 60.
Gender Males have a higher incidence than females.
Race & SES* Rates are higher for African Americans than for Caucasians. Rates are also higher among lower income groups.
Diet Increased risk is associated with diets low in fresh fruit and vegetable consumption.
Occupation Increased risk with textile and leather manufacturing industries.
Other Smoking and spit tobacco are major risk factors for cancers of the oral cavity and pharynx. Over 90% of cases are associated with tobacco use. Alcohol use, especially excessive, is a major risk factor. Combined exposure to tobacco and alcohol results in substantially higher risk.
Special Notes
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): 		8.9
7.3-10.4
9.3
5.8-11.8
10.0

There were no cases among persons less than 40 years of age. The age-specific incidence rates generally increased with age after age 55, peaking in the age group 70-74 for males and 85+ for females. No health district had significantly more cases than expected based upon rates for the remainder of Idaho.

Stage at Diagnosis