Effect of racial/ethnic misclassification of American Indians and Alaskan natives on Washington state death certificates, 1989-1997
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作者:
Stehr-Green, P
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NW Portland Area Indian Hlth Board, NW Tribal Epidemiol Ctr EpiCtr, Portland, OR 97201 USANW Portland Area Indian Hlth Board, NW Tribal Epidemiol Ctr EpiCtr, Portland, OR 97201 USA
Stehr-Green, P
[1
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Bettles, J
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NW Portland Area Indian Hlth Board, NW Tribal Epidemiol Ctr EpiCtr, Portland, OR 97201 USANW Portland Area Indian Hlth Board, NW Tribal Epidemiol Ctr EpiCtr, Portland, OR 97201 USA
Bettles, J
[1
]
Robertson, LD
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NW Portland Area Indian Hlth Board, NW Tribal Epidemiol Ctr EpiCtr, Portland, OR 97201 USANW Portland Area Indian Hlth Board, NW Tribal Epidemiol Ctr EpiCtr, Portland, OR 97201 USA
Robertson, LD
[1
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机构:
[1] NW Portland Area Indian Hlth Board, NW Tribal Epidemiol Ctr EpiCtr, Portland, OR 97201 USA
Objectives. This study examined effects of racial/ethnic misclassification of American Indians and Alaskan natives on Washington State death certificates, Methods. Probabilistic record linkage were used to match the 198-1997 state death files to the Northwest Tribal Registry. Results. We identified matches for 2819 decedents, including 414 (14.7%) who had been misclassified as non-American Indians and Alaskan natives on the death certificates. The likelihood of being correctly classified increased 3-fold for each higher level of American Indian and Alaskan native ancestry (odds ratio = 2.88; 95% confidence interval [Cl] = 2.51, 3.30) and decreased by 6.9% per calendar year (95% Cl = 2.0, 11.5). Conclusions. Systematic biases on death certificates in Washington State persist. Methods to reduce misclassification can improve data quality and enhance efforts to measure and reduce racial/ethnic health disparities.