Responsiveness and minimal clinically important changes to physical therapy interventions of Persian versions of copenhagen neck functional disability index, neck bournemouth questionnaire and spine functional index questionnaires in people with chronic neck pain

Masumeh Hessam; Maryam Narimisa; Saeideh Monjezi; Maryam Saadat

doi:10.1080/09593985.2023.2210679

Responsiveness and minimal clinically important changes to physical therapy interventions of Persian versions of copenhagen neck functional disability index, neck bournemouth questionnaire and spine functional index questionnaires in people with chronic neck pain

Physiother Theory Pract. 2023 May 10:1-8. doi: 10.1080/09593985.2023.2210679. Online ahead of print.

Authors

Masumeh Hessam^{1

2}, Maryam Narimisa³, Saeideh Monjezi^{1

2}, Maryam Saadat^{1

2}

Affiliations

¹ Musculoskeletal Rehabilitation Research Center, School of Rehabilitation Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
² Physiotherapy Department, School of Rehabilitation Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
³ Student Research Committee, School of Rehabilitation Sciences, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.

PMID: 37162484
DOI: 10.1080/09593985.2023.2210679

Abstract

Background and purpose: Chronic neck pain has a significant impact on the patient's quality of life. Specific outcome measures like Copenhagen Neck Functional Disability Index (CNFDI), Neck Bournemouth questionnaire (NBQ), and Spine Functional Index (SFI) are reliable and valid measures that have been used for comprehensively evaluating neck-related disabilities. However, responsiveness has not yet been investigated. The aim of this study was to examine the responsiveness and clinically meaningful changes of the CNFDI, NBQ, and SFI for Persian patients with chronic neck pain.

Methods: Prospective recruitment of 145 patients with chronic neck pain was conducted. Participants completed the Persian versions of CNFDI, NBQ, and SFI at baseline and after 4 weeks of physical therapy. Also, the Global Rating of Change Scale (GRCS) was completed in the post-intervention assessment. The Receiver Operating Characteristics (ROC) curve and correlational analysis were used for evaluating the responsiveness. In addition, the Minimal Clinically Important Change (MCIC) was determined.

Results: All selected outcome measures revealed an area under the curve of 0.96. The MCICs of 10, 7, and 10 points were found for the CNFDI, NBQ, and SFI, respectively. The results showed an excellent Gamma correlation coefficient of the CNFDI (_γ = 0.98), NBQ (_γ = 0.99), and SFI (_γ = 0.99) with the GRCS.

Conclusion: The Persian versions of the CNFDI, NBQ, and SFI have acceptable responsiveness properties for evaluating the changes in health status in patients with chronic neck pain following physical therapy interventions.

Keywords: Measurement properties; minimal clinically important change; neck pain; patient-reported outcome measure; rehabilitation; responsiveness.