Asthma mortality based on death certificates: A demographic survey in Kagawa,Japan |
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| Affiliation: | 1. Kamei Internal Medicine and Respiratory Clinic, 3007-4 Ohta-shimomachi, Takamatsu, Kagawa, Japan;2. Department of Internal Medicine, Division of Hematology, Rheumatology and Respiratory Medicine, Faculty of Medicine, Kagawa University, Kagawa, Japan;3. Department of Internal Medicine, Sakaide City Hospital, Kagawa, Japan;4. Department of Internal Medicine, Federation of National Public Service Personnel Mutual Aid Associations Takamatsu Hospital, Kagawa, Japan;5. Department of Respiratory Medicine, Kagawa Prefectural Central Hospital, Kagawa, Japan;6. Department of Pulmonary Medicine, Takamatsu Municipal Hospital, Kagawa, Japan;7. Department of Internal Medicine, Kagawa Rosai Hospital, Kagawa, Japan;8. Department of Respiratory Medicine, Takamatsu Red Cross Hospital, Kagawa, Japan;9. Department of Respiratory Medicine, Sanuki Municipal Hospital, Kagawa, Japan;10. Yamazaki Internal Medicine and Respiratory Clinic, Japan;11. Department of Public Health, Faculty of Medicine, Kagawa University, Kagawa, Japan;12. Department of Infectious, Respiratory, and Digestive Medicine, Control and Prevention of Infectious Diseases, Faculty of Medicine, University of the Ryukyus, Okinawa, Japan;13. Department of Health and Welfare, Kagawa Prefectural Government, Kagawa, Japan;1. Department of Pulmonary Medicine, Fukushima Medical University School of Medicine, 1 Hikarigaoka, Fukushima City, Fukushima, Japan;2. Department of Cardiology, Pulmonology and Nephrology, Yamagata University School of Medicine, Yamagata, Japan;1. Department of Medicine, University of Colorado Denver, Aurora, CO 80045, USA;2. Department of Medicine, University of California, San Francisco, San Francisco, CA, USA;1. Servicio de Neumonología, Sanatorio Allende Cerro, Córdoba, Argentina;2. Servicio de Reumatología, Sanatorio Allende Cerro, Córdoba, Argentina;3. Servicio de Diagnóstico por Imágenes, Sanatorio Allende Cerro, Córdoba, Argentina;1. Department of Plastic and Reconstructive Surgery, Niigata University Graduate School of Medicine, Niigata, Japan;2. Department of Plastic and Reconstructive Surgery, Osaka University Graduate School of Medicine, Osaka, Japan;3. Department of Plastic and Reconstructive Surgery, Saga University Hospital, Saga, Japan;4. Department of Plastic and Reconstructive Surgery, Osaka Police Hospital, Osaka, Japan;1. Department of Respiratory Medicine, Shizuoka General Hospital, 4–27-1 Kita-Ando, Aoi, Shizuoka, Japan;2. Department of Clinical Pharmacology and Genetics, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan |
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| Abstract: | BackgroundWe aimed to determine the reasons for the high rate of asthma mortality in Kagawa Prefecture, Japan, by analyzing death certificates.MethodsWe analyzed the death certificates between 2009 and 2011 in a demographic survey. Of 1187 patients with documented disease names suggesting bronchial asthma, analysis was performed on 103 patients in whom the cause of death was classified as asthma based on ICD-10 Codes. The patients were then classified into the following 4 groups: asthma death, asthma-related death, non-asthma death, and indistinguishable death. Based on this classification, consistency between ICD-10-based asthma death and asthma/asthma-related deaths was examined for each age group as well as for the site of death.ResultsOf 103 asthma deaths based on the ICD-10 classification, 30 (29%) were classified as asthma death, 44 (43%) as asthma-related death, 16 (16%) as non-asthma death, and 13 (13%) as indistinguishable death. Asthma death based on our classification correlated with that of ICD-10-based classification as a cause of death in patients younger than the median age (87 years), but correlation was not observed in patients aged older than 87 years. Deaths occurred outside the hospital in 45% of patients, and many ICD-10-based deaths reported at nursing homes and geriatric health care facilities were classified as non-asthma deaths in this survey.ConclusionRe-examination of the death certificate revealed that asthma deaths were reported incorrectly on the death certificates of elderly patients who died outside the hospital. |
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| Keywords: | Elderly Japanese death Ministry of Health Labour and Welfare Asthma mortality Death certificate |
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