Impact of the addition of examples to the American Society of Anesthesiologists physical status classification system

Vikram Fielding-Singh, Mark D. Willingham, Tristan Grogan, Jacques P. Neelankavil

Research output: Contribution to journalArticle

Abstract

Examples of comorbidities for the widely used American Society of Anesthesiologists physical status (ASA-PS) classification system were developed and approved in 2014. We conducted a retrospective cohort study of patients with 4 comorbidities included in the examples as warranting a specific minimum ASA-PS class. For each comorbidity subgroup, we used interrupted time-series models to compare ASA-PS underclassification for the periods before (2011–2014) and after (2015–2017) the introduction of examples. Rates of underclassification ranged from 4.8% to 38.7%. We observed no evidence of a significant impact on ASA-PS classification with the introduction of examples in 2014.

Original languageEnglish
Pages (from-to)E54-E57
JournalAnesthesia and analgesia
DOIs
StateAccepted/In press - Jan 1 2020
Externally publishedYes

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