Accuracy of national mortality codes in identifying adjudicated cardiovascular deaths
Data(s) |
01/10/2011
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Resumo |
<b>Objective</b>: This study investigated the sensitivity and specificity of the national mortality codes in identifying cardiovascular disease (CVD) deaths and documents methods of verification.<br /><br /><b>Methods</b>: A 12-year retrospective case ascertainment of all ICD-coded CVD deaths was performed for deaths between 1990 and 2002 in the Melbourne Collaborative Cohort Study, comprising 41,528 subjects. Categories of non-CVD codes were also examined. Stratified samples of 750 deaths were adjudicated from a total of 2,230 deaths. Expert panels of cardiologists and neurologists adjudicated deaths.<br /><br /><b>Results</b>: Of the 750 deaths adjudicated, 582 were verified as CVD [392 coronary heart disease (CHD) and 92 stroke] and 168 non-CVD. Estimated sensitivity and specificity of national mortality codes for identifying specific causes of death were: CHD 74.2% (95% CI: 69.8–78.5%) and 97.6% (96.0–99.2%), respectively; myocardial infarction 59.9% (50.9–69.0%) and 94.2% (92.4–96.0%), respectively; haemorrhagic stroke 58.9% (46.0–71.7%) and 99.8% (99.4–100.0%), respectively and; ischaemic stroke 38.7% (20.5–56.9%) and 99.9% (99.6–100.0%), respectively. Misclassification was most common for deaths with primary ICD codes for endocrine-metabolic and genito-urinary diseases.<br /><br /><b>Conclusions</b>: National mortality coding under-estimated the true proportion of CHD and stroke deaths in the cohort by 13.6% and 50.8%, respectively.<br /> |
Identificador | |
Idioma(s) |
eng |
Publicador |
Wiley - Blackwell Publishing Asia |
Relação |
http://dro.deakin.edu.au/eserv/DU:30046464/beauchamp-accuracyof-2011.pdf http://dx.doi.org/10.1111/j.1753-6405.2011.00739.x |
Direitos |
2011, Wiley-Blackwell Publishing Asia |
Palavras-Chave | #cardiovascular disease #coronary heart disease #stroke #validity #medical record |
Tipo |
Journal Article |