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Friday, April 21, 2006

Heart Diseases and Stroke Statistics 2006

(Recomendado por Maria Inês Reinert Azambuja)
The American Heart Association works with the Centers for Disease Control and Prevention’s National Center for Health Statistics (CDC/NCHS), the National Heart, Lung, and Blood Institute (NHLBI), the National Institute of Neurological Disorders and Stroke (NINDS), and other government agencies to derive the annual statistics in this update. This section describes the most important sources we use. For more details and an alphabetical list of abbreviations, see the Glossary and Abbreviation Guide.

All statistics are for the most recent year available. Prevalence, mortality and hospitalizations are computed for 2003 unless otherwise noted. Mortality as an underlying or contributing cause of death is for 2002. Economic cost estimates are for 2006. Due to late release of data, some disease mortality are not updated to 2003. Mortality for 2003 are underlying preliminary data, obtained from the NCHS publication National Vital Statistics Report: Deaths: Preliminary Data for 2003 (NVSR, 2005;53:15) and from unpublished tabulations furnished by Robert Anderson of NCHS. US and state death rates and prevalence rates are age-adjusted per 100 000 population (unless otherwise specified) using the 2000 US standard for age standardization.

Morbidity (illness) and mortality (death) data in the United States use a standard classification system—the International Classification of Diseases (ICD). About every 10–20 years, the ICD codes are revised to reflect changes over time in medical technology, diagnosis or terminology. Effective with mortality data for 1999, we’re using the tenth revision (ICD/10). It will be a few more years before the tenth revision is used for hospital discharge data.

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