Medicine and Health Sciences Commons^™

Cancer In American Indian And Alaska Native Young Adults (Ages 20–44 Years): Us, 1999–2004, Hannah K. Weir, Melissa Jim, Loraine D. Marrett, Temeika L. Fairley

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BACKGROUND. An examination of cancer incidence patterns in American Indians and Alaska Native (AI/AN) young adults may provide insight into their present and future cancer burden.

METHODS. To reduce racial misclassification, incidence data were linked with the Indian Health Service (IHS) patient services database. Age-adjusted cancer incidence rates per 100,000 (AAR) and corresponding rate ratios (RR) for young adults (ages 20-44 years) were compared across IHS regions and for selected cancers within Contract Health Service Delivery Area counties by race (AI/AN vs non-Hispanic whites [NHW]) and sex.

RESULTS. The all-sites cancer incidence rate was lower for AI/ANs …

Gastric Cancer Among American Indians And Alaska Natives In The United States, 1999–2004, Charles Wiggins, David G. Perdue, Jeffrey A. Henderson, Michael G. Bruce, Anne P. Lanier, Janet J. Kelly, Brenda F. Seals, David K. Espey

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BACKGROUND. Gastric cancer incidence rates for American Indians and Alaska Natives (AI/ANs) historically have exceeded those for non-Hispanic whites (NHWs). Previous reports may have underestimated the true burden of gastric cancer in AI/AN populations because of misclassification of AI/AN race in cancer registries.

METHODS. Population-based cancer registry data from 1999 through 2004 were used to describe gastric cancer incidence in AI/ANs and NHWs in the US. To address misclassification of race, registry data were linked with Indian Health Service administrative records, and analyses were restricted to residents of Contract Health Service Delivery Areas (CHSDA). Disease patterns were assessed …

Lung Cancer Incidence Among American Indians And Alaska Natives In The United States, 1999–2004, Anne Bliss, Nathaniel Cobb, Teshia Solomon, Kym Cravatt, Melissa A. Jim, Latisha Marshall, Janis Campbell

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BACKGROUND. Lung cancer incidence rates among American Indians and Alaska Natives (AI/ANs) in the United States have not been described well, primarily because of race misclassification and, until the 1990s, incomplete coverage of their population by cancer registries. Smoking, the predominant cause of lung cancer, is particularly prevalent among this population.

METHODS. Data from the National Program of Cancer Registries and the Surveillance, Epidemiology, and End Results Program were combined to estimate age adjusted incidence rates of lung cancer during 1999 through 2004. Cases were linked to Indian Health Service (IHS) registration databases to identify AI/ANs whose race …

Methods For Improving Cancer Surveillance Data In American Indian And Alaska Native Populations, David K. Espey, Charles Wiggins, Melissa A. Jim, Barry A. Miller, Christopher J. Johnson, Tom M. Becker

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BACKGROUND. The misclassification of race decreases the accuracy of cancer incidence data for American Indians and Alaska Natives (AI/ANs) in some central cancer registries. This article describes the data sources and methods that were used to address this misclassification and to produce the cancer statistics used by most of the articles in this supplement.

METHODS. Records from United States cancer registries were linked with Indian Health Service (IHS) records to identify AI/AN cases that were misclassified as non-AI/AN. Data were available from 47 registries that linked their data with IHS, met quality criteria, and agreed to participate. Analyses …

Prostate Cancer Incidence Among American Indian And Alaska Native Men, Us, 1999–2004, Jeffrey A. Henderson, David K. Espey, Melissa Jim, Robert R. German, Kate M. Shaw, Richard M. Hoffman

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BACKGROUND. American Indian and Alaska Native (AI/AN) men experience lower incidence of prostate cancer than other race/ethnic populations in the US, but racial misclassification of AI/AN men threatens the validity of these estimates. To the authors’ knowledge, little is known concerning prostate-specific antigen (PSA) testing in AI/AN men.

METHODS. The authors linked cancer registry data with Indian Health Service enrollment records to improve race classification. Analyses comparing cancer incidence rates and stage at diagnosis for AI/AN and non-Hispanic white (NHW) men for 6 geographic regions focused on counties known to have less race misclassification. The authors also used …

Regional Differences In Colorectal Cancer Incidence, Stage, And Subsite Among American Indians And Alaska Natives, 1999–2004, David G. Perdue, Carin Perkins, Jeannette Jackson-Thompson, Steven S. Coughlin, Faruque Ahmed, Donald S. Haverkamp, Melissa Jim

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BACKGROUND. Colorectal cancer (CRC) is a leading cause of cancer morbidity and mortality for American Indians and Alaska Natives (AI/ANs), but misclassification of race causes underestimates of disease burden.

METHODS. The authors compared regional differences in CRC incidence, stage at diagnosis, and anatomic distribution between AI/ANs and non-Hispanic whites (NHWs). To reduce misclassification, data from the National Program of Cancer Registries; the Surveillance, Epidemiology, and End Results Program; and the Indian Health Service (IHS) were linked. The analysis was limited to the 56% of AI/ AN who live in IHS Contract Health Service Delivery Areas.

RESULTS. From …

Cancer Among American Indians And Alaska Natives In The United States, 1999–2004, Charles Wiggins, David K. Espey, Phyllis A. Wingo, Judith S. Kaur, Robin Taylor Wilson, Judith Swan, Barry A. Miller, Melissa Jim, Janet J. Kelly, Anne P. Lanier

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BACKGROUND. Cancer incidence rates vary among American Indian and Alaska Native (AI/AN) populations and often differ from rates among non-Hispanic whites (NHWs). However, the misclassification of race for AI/AN cancer cases in central cancer registries may have led to underestimates of the AI/AN cancer burden in previous reports.

METHODS. Cases diagnosed during 1999 through 2004 were identified from population- based cancer registries in the United States. Age-adjusted rates were calculated for the 25 most common sites for AI/ANs and NHWs. To minimize the misclassification of race, cancer registry records were linked with patient registration files from the Indian …

Breast Cancer Incidence Among American Indian And Alaska Native Women: Us, 1999–2004, Phyllis A. Wingo, Jessica King, Judith Swan, Steven S. Coughlin, Judith S. Kaur, Julie A. Erb-Alvarez, Jeannette Jackson-Thompson, Teshia G. Arambula Solomon

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BACKGROUND. Breast cancer is a leading cause of cancer morbidity and mortality among American Indian and Alaska Native (AI/AN) women. Although published studies have suggested that breast cancer rates among AI/AN women are lower than those among other racial and ethnic populations, accurate determinations of the breast cancer burden have been hampered by misclassification of AI/AN race.

METHODS. Cancer incidence data from the National Program of Cancer Registries and the Surveillance, Epidemiology, and End Results Program were combined to estimate age-adjusted rates for the diagnosis years 1999 through 2004. Several steps were taken to reduce the misclassification of …