Reductions in admission rates at weekends: | Measured as percentage reductions in admission rates at weekends compared with week days |
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Medical disease category: | Circulatory, respiratory, gastrointestinal, trauma, cancers, ageing-related and other disorders |
Mortality on the day of admission: | Measured as percentages of deaths on the day of admission compared with all deaths by day 30 |
Changes in the source of admission at weekends: | Measured as the risk ratio at weekends (compared with week days) of admissions through hospital emergency departments rather than via primary care or consultant clinics |
Mean patient age: | Measured in age (years) |
Patient social deprivation: | Measured as the percentage of patients admitted with the most deprived social deprivation groups IV and V |