Several scores and codes are used in prehospital clinical quality registries but little is known of their\nreliability. The aim of this study is to evaluate the inter-rater reliability of the American Society of Anesthesiologists\nphysical status (ASA-PS) classification system, HEMS benefit score (HBS), International Classification of Primary Care,\nsecond edition (ICPC-2) and Eastern Cooperative Oncology Group (ECOG) performance status in a helicopter\nemergency medical service (HEMS) clinical quality registry (CQR).\nMethods: All physicians and paramedics working in HEMS in Finland and responsible for patient registration were\nasked to participate in this study. The participants entered data of................
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