College of Psychology: Faculty Articles

Title

Development and Validation of the Post-Operative Recovery Index for Measuring Quality of Recovery after Surgery

Document Type

Article

Publication Date

1-2-2013

Keywords

Symptom measurement, Post-operative recovery, Quality of life

Publication Title

Journal of Anesthesia & Clinical Research

ISSN

2155-6148

Volume

3

Issue/No.

12

Abstract

Purpose: Current methods used to quantify aspects of recovery after surgery and anesthesia tend to be narrowly focused, not patient-rated, or have not been appropriately validated. We set out to develop a quality of recovery score system that is self-report and multi-dimensional, with applicability across various surgeries and surgical settings, from immediately post-surgery through discharge and covering the first 30 days of recovery.

Methods: A Post-operative Recovery Index (PoRI) was validated on 225 patients (Nvalidation=96; NCross Validation=129) who had undergone a surgical procedure within the last 30 days. Domain level internal consistency on the validation and cross validation samples yielded coefficients ranging from α=0.813 to α=0.932, while test-retest reliability yielded stability coefficients ranging from r=0.660 to r=0.881. Confirmatory factor analyses demonstrated validity of the factorial structure of the 37-item PoRI on the validation patient sample and confirmed on the cross validation patient sample. Exploratory psychometric analyses provided evidence of an overarching (second-order) “Recovery” factor.

Results: We developed, tested, validated, and cross validated the Post-operative Recovery Index (PoRI) consisting of 37 items assessing symptomatology a patient may experience after surgery.

Conclusion: The PoRI is offered as a valid, multidimensional measure of recovery after surgery and anesthesia with broad applicability in post-surgical settings.

DOI

10.4172/2155-6148.1000267