The minimal important change for the EQ VAS based on the SF-36 health transition item: observations from 25772 spine surgery procedures.

ABSTRACT:

Purpose

The EQ VAS is an integral part of EQ-5D, a commonly used instrument for health-related quality of life assessment. This study aimed to calculate the minimal important change (MIC) thresholds for the EQ VAS for improvement and deterioration after surgery for disk herniation or spinal stenosis.

Methods

Patients, who were surgically treated for disk herniation or spinal stenosis between 2007 and 2016, were recruited from the Swedish spine register. Preoperative and 1-year postoperative data for a total of 25772 procedures were available for analysis. We used two anchor-based methods to estimate MIC for EQ VAS: (1) a predictive model based on logistic regression and (2) receiver operating characteristics (ROC) curves. The SF-36 health transition item was used as anchor.<

SUBMITTER: Joelson A 

PROVIDER: S-EPMC9587963 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature