1998 Report Index

ENDOMETRIUM
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






18.7

132
1
14







Total Cases by County
Ada
Adams
Bannock
Bear Lake
Benewah
Bingham
Blaine
Boise
Bonner
Bonneville
Boundary
Butte
Camas
Canyon
Caribou
 25
0
9
0
0
3
2
0
5
6
1
2
1
16
0
Cassia
Clark
Clearwater
Custer
Elmore
Franklin
Fremont
Gem
Gooding
Idaho
Jefferson
Jerome
Kootenai
Latah
Lemhi
 2
0
1
1
2
2
2
2
1
0
0
3
10
0
0
Lewis
Lincoln
Madison
Minidoka
Nez Perce
Oneida
Owyhee
Payette
Power
Shoshone
Teton
Twin Falls
Valley
Washington
Unknown
 0
1
1
0
5
1
0
2
0
0
0
23
1
1

Risk and Associated Factors
Age Rates increase with age; the vast majority of cases occur after age 50.
Race & SES Caucasian women have higher rates than African American women.
Genetics Familial tendency has been observed
Diet Dietary fat may play a role in increased risk. Obesity and hypertension are common associated conditions of endometrial cancer.
Hormonal Factors that elevate levels of estrogen or decrease progesterone levels enhance the risk. Women who have never carried a pregnancy to term are at a relatively high risk. The risk reduces as the number of pregnancies increases. An increased incidence of endometrial cancer has been found in association with prolonged, unopposed estrogen exposure as well as with tamoxifen treatment of breast cancer.
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):
18.1
12.4-23.7
17.2
9.1-33.2
22.4

No cases of endometrial cancer were diagnosed in persons less than 30 years of age. There was a sharp increase in age-specific rates, peaking in the age group 80-84. Health District 5 had statistically significantly more cases than expected based upon rates for the remainder of Idaho (p<0.01).

Stage at Diagnosis