Classification of events
EVENTS, EVENTS
Each record in the admitted patient care datasets represents a fixed consultant episode (the total time a patient spends under the care of an individual consultant). Long-stay inpatient events (defined as events lasting for over one year) were excluded from the analysis as they were indicative of residential care. Events were treated as day cases if they were classified as such in the patient class field or if they had stay lengths of zero nights.We assigned Healthcare Resource Group (HRG) codes using the NHS Reference Costs Grouper [The HES and PEDW outpatient datasets contain information on outpatient procedures and other outpatient visits. HRGs were also assigned through the 2013/14 Grouper, based on procedures where applicable.