Fig. 1
From: Comparison of Standardized Mortality Ratios in seven Dutch EDs based on presenting complaints
Patient flow through study. Study design and patient flow in study. The model uses the following potential confounders: age, gender, triage category, Glasgow Coma Scale, vitalscore- a categorical item composed of respiratory rate O2 saturation, systolic and diastolic blood pressure, heart rate,and temperature (See supplement) medication yes/no, number of consultation, addtional investigations yes/no: blood tests, radiology imaging and PCs. Models after stratification by PC do not include PCs. Abbreviations: NEED =Nederlandse Emergency department Evaluation Database,ED=emergency department,PC = presenting complaint, SMR = standardized mortality ratio