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Gynecol Oncol. 1997 Apr;65(1):8-12.

Impact of ethnicity on the incidence of high-risk endometrial carcinoma.

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  • 1Department of Reproductive Medicine, University of California at San Diego, La Jolla 92103, USA.

Abstract

OBJECTIVE:

To evaluate the impact of race/ethnicity on histology in endometrial cancer.

METHODS:

California Cancer Registry data on 11,674 white and 423 black women with endometrial cancer registered from 1988 to 1992 were used to compare the average annual age-adjusted incidence rate/100,000 women of low-risk (grades 1 and 2 endometrioid adenocarcinoma) and high-risk (grade >2 endometrioid carcinomas, papillary serous, clear cell, and adenosquamous histologies) lesions in black and white women.

RESULTS:

Of the white patients, 9059 (78%) had low-risk and 2615 (22%) had high-risk lesions. Of the black patients, 236 (56%) had low-risk and 187 (44%) had high-risk lesions. The overall average annual age-adjusted incidence of endometrial cancer in white women is 20.1/100,000 and for black women is 9.4/100,000; however, the incidence of low-risk tumors is 15.9/100,000 in white women and only 5.3/100,000 in black women. The incidence of high-risk disease is identical in black and white women (4.2/100,000).

CONCLUSIONS:

Black women in the general population have the same likelihood as white women of developing high-risk endometrial cancer. Black women have a significantly lower incidence of low-risk tumors compared to white women. The increased incidence of low-grade lesions in white women may be due to differences in socioeconomic factors or other factors yet to be identified.

PMID:
9103384
[PubMed - indexed for MEDLINE]

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