Measurement Properties of the Simplified Chinese Version of the Lumbar Spine Instability Questionnaire for Patients With Low Back Pain in Mainland China

Abstract

A prospective study.Objective. To develop a simplified Chinese version of Lumbar Spine Instability Questionnaire (SC-LSIQ) and test its measurement properties. Summary of Background Data. The LSIQ has been translated into several languages. Different versions of LSIQ have proved good reliability and validity in evaluating patients with low back pain. However, there is no simplified Chinese version of LSIQ (SC-LSIQ). Materials and Methods. The SC-LSIQ has been translated into a simplified Chinese version according to a standard procedure. A total of 155 patients with low back pain completed the SC-LSIQ along with Oswestry Disability Index, Roland-Morris disability questionnaire, Tampa Scale for Kinesiophobia, and visual analogue scale (VAS). The internal consistency, test-retest reliability, and validity of SC-LSIQ were then calculated to evaluate the measurement properties of SC-LSIQ. Results. The results of SC-LSIQ demonstrated that there was no ceiling or floor effect detected. The Cronbach α coefficient of 0.911 determined a well internal consistency. The intraclass correlation coefficient (0.98) presented an excellent reliability of SC-LSIQ. The Pearson correlation coefficient (r) showed that the SC-LSIQ was excellent correlated to Oswestry Disability Index (r = 0.809), Roland-Morris disability questionnaire (r = 0.870), and Tampa Scale for Kinesiophobia (r = 0.945,). Furthermore, it moderately correlated to visual analogue scale (r = 0.586). Conclusion.The SC-LSIQ features good internal consistency, reliability, and validity for evaluating Chinese patients with LBP. Results suggest that the SC-LSIQ can be appropriately applied to patients with LBP in routine clinical practice.

Cross-cultural adaptation and validation of simplified Chinese version of the Waddell Disability Index for patients with nonspecific low back pain in Mainland China

“…A total of 280 patients with a diagnosis of LBP between January 2020 and December 2021 were recruited. The participant population was based on advice contained in the Quality criteria for health status questionnaires proposed, [15][16][17][18] which advised that at least 50 patients for appropriate analysis of reliability, construct validity, ceiling or floor effects, and 100 patients are necessary for internal consistency analysis. Patients participating in the study must fulfill the following criteria: history of chronic LBP for at least 4 weeks or more with or without radiation to the lower limbs diagnosis of LBP identified by physical, neurological examination, radiological evaluation and confirmed by a spine surgeon at least 6 years of education and ability to read and speak Chinese.…”