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Trends in the incidence of invasive and in situ vulvar carcinoma.

Authors
Judson-PL; Habermann-EB; Baxter-NN; Durham-SB; Virnig-BA
Source
Obstet Gynecol 2006 May; 107(5):1018-1022
NIOSHTIC No.
20037548
Abstract
Objective: To characterize the incidence of vulvar carcinoma in situ and vulvar cancer over time. Methods: We used the Surveillance Epidemiology and End Results database to assess trends in the incidence of vulvar cancer over a 28-year period (1973 through 2000) and determined whether there had been a change in incidence over time. Information collected included patient characteristics, primary tumor site, tumor grade, and follow-up for vital status. We calculated the incidence rates by decade of age, used X2 tests to compare demographic characteristics, and tested for trends in incidence over time. Results: A total of 13,176 in situ and invasive vulvar carcinomas were identified; 57% of the women were diagnosed with in situ, 44% with invasive disease. Vulvar carcinoma in situ increased 411% from 1973 to 2000. Invasive vulvar cancer increased 20% during the same period. The incidence rates for in situ and invasive vulvar carcinomas are distributed differently across the age groups. In situ carcinoma incidence increases until the age of 40-49 years and then decreases, whereas invasive vulvar cancer risk increases as a woman ages, increasing more quickly after 50 years of age. Conclusion: The incidence of in situ vulvar carcinoma is increasing. The incidence of invasive vulvar cancer is also increasing but at a much lower rate.
Keywords
Age-factors; Age-groups; Biological-systems; Cancer-rates; Cell-biology; Cytology; Disease-incidence; Epidemiology; Health-surveys; In-vitro-study; Medical-monitoring; Medical-screening; Medical-services; Medical-treatment; Preventive-medicine; Prophylaxis; Quantitative-analysis; Reproductive-system; Reproductive-system-disorders; Risk-analysis; Statistical-analysis
Contact
Patricia L. Judson, MD, Division of Gynecologic Oncology, Department of Obstetrics, Gynecology, and Women's Health, University of Minnesota, 420 Delaware Street SE, MMC 395, Minneapolis, MN 55455
CODEN
OBGNAS
Publication Date
20060501
Document Type
Journal Article
Email Address
judso003@umn.edu
Funding Type
Grant
Fiscal Year
2006
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-T42-OH-008434
Issue of Publication
5
ISSN
0029-7844
Source Name
Obstetrics and Gynecology
State
MN
Performing Organization
University of Minnesota Twin Cities
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