What is the inter-rater reliability and validity of the ASA-PS scale in clinical practice?
The ASA-PS scale is a valid marker of preoperative health status, though its inter-rater reliability is only moderate due to inherent subjectivity.
Consistent with its inherent subjectivity, the ASA-PS scale has moderate inter-rater reliability in clinical practice. It also demonstrates validity as a marker of patients' preoperative health status.
Sankar et al. (Fri,) studied this question.