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December 1, 2017Perioperative MedicineOpen Access

Impact of ASA score misclassification on NSQIP predicted mortality: a retrospective analysis

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Why the study?

Does ASA score misclassification affect the observed/expected mortality ratio in NSQIP surgical cases?

Population

1,264 NSQIP essential surgery cases from January 2014 to December 2014 at a single institution, including a…

Comparison

Independent recalculation of ASA score using… vs Original ASA score classification

Design

Cohort

Authors

AHAlex HelkinSUNY Upstate Medical UniversitySJSumeet JainUniversity of FloridaAGAngelika C. GruessnerSUNY Downstate Health Sciences University

Discussion

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Implication

ASA misclassification may distort NSQIP O/E mortality ratios; leaves open whether standardized scoring refines risk adjustment.

Structured PICO

Does ASA score misclassification affect the observed/expected mortality ratio in NSQIP surgical cases?

P
Population
1,264 NSQIP essential surgery cases from January 2014 to December 2014 at a single institution, including a mortality sub-analysis (n=33) and a random sample of 50 survivors and 10 emergency survivors.
I
Intervention
Independent recalculation of ASA score using published definitions
C
Comparator
Original ASA score classification
O
Outcome
Impact of ASA misclassification on observed/expected (O/E) mortality ratio and predicted mortality

Accurate ASA classification is critical, as under-classification significantly underestimates expected mortality and artificially inflates observed-to-expected mortality ratios in surgical quality assessments.

Cite This Study

Helkin et al. (2017) studied this question.

synapsesocial.com/papers/6a796787684c0941cf3210cfhttps://doi.org/10.1186/s13741-017-0076-1
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