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Comparison of Commercial Stairchairs using Data Envelopment Analysis

Firefighters and Emergency Medical Services (EMS) personnel must perform a wide array of potentially hazardous emergency rescue procedures that often include the use of specially designed rescue and/or transport equipment. One common procedure involves transporting a victim down one or more flights of stairs using a stairchair. Since there are several stairchair models commercially available, the objective of this study was to analyze and compare the performance of six different models following a scenario-based study that involved EMS professionals carrying a patient down one flight of stairs and continuing 90? through a landing. Performance of the stairchairs was evaluated based upon subjective and quantitative measures. Stairchair performance rankings were then developed from the accumulated measures via mean cross-efficiency scores developed with the application of Data Envelopment Analysis.