Analysis of the American Society of Anesthesiologists Physical Status Scale Reliability in Anaesthesia Practice: An Observational Study.

Anaesthesiologists use the American Society of Anesthesiologists physical status (ASA PS) classification to assess patients' overall health. The primary objective of this study was to predict the prognostic value regarding peri-operative variables until discharge from hospital and post-operative outcomes. The secondary objective was to evaluate the inter-rater agreement of the ASA scores assigned at the outpatient department (OPD) vs. operating theatres (OT).