Objective: To determine whether the higher weekend admission mortality risk is attributable to increased severity of illness.
Design: Retrospective analysis of 4 years weekend and weekday adult emergency admissions to a university teaching hospital in England.
Outcome Measures: 30-day postadmission weekend:weekday mortality ratios adjusted for severity of illness (baseline National Early Warning Score (NEWS)), routes of admission to hospital, transfer to the intensive care unit (ICU) and demographics.
Introduction: The mortality associated with weekend admission to hospital (the 'weekend effect') has for many years been attributed to deficiencies in quality of hospital care, often assumed to be due to suboptimal senior medical staffing at weekends. This protocol describes a case note review to determine whether there are differences in care quality for emergency admissions (EAs) to hospital at weekends compared with weekdays, and whether the difference has reduced over time as health policies have changed to promote 7-day services.
Methods And Analysis: Cross-sectional two-epoch case record review of 20 acute hospital Trusts in England.