The data used for this presentation stems from the OECD Health database (OECD Health Data, 2007).
ALOS is calculated by dividing the number of days stayed (from the date of admission in an in-patient institution) by the number of discharges (including deaths).
Diagnostic chapters (using principal diagnosis) have been defined according to the ICD 9th revision and 10th revision.
Note that some countries may include deaths and discharges as well as same day separations. Also, note that breaks in the series might be due to countries converting from ICD-9 to ICD-10.
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Literature and data sources
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, or the process by which an admitted patient completes an episode of care (discharge, death or transfer).
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