Medical care
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Multicenter Study Comparative Study
Comparing the validity of different sources of information on emergency department visits: a latent class analysis.
Emergency department (ED) use in Quebec may be measured from varied sources, eg, patient's self-reports, hospital medical charts, and provincial health insurance claims databases. Determining the relative validity of each source is complicated because none is a gold standard. ⋯ The claims database is the most valid method of measuring ED use among seniors in Quebec compared with hospital medical charts and patient-reported use.