Assessment of functioning and disability in patients with low back pain – the low back pain assessment tool. Part 1: development
Purpose: To present the process used to develop the low back pain (LBP) assessment tool including evaluation of the initial content validity of the tool.
Methods: The development process comprised the elements: definition of construct and content, literature search, item generation, needs assessment, piloting, adaptations, design, and technical production. The LBP assessment tool was developed to assess the construct “functioning and disability” as defined by the International Classification of Functioning, Disability and Health (ICF). Involvement of patients and health professionals was essential.
Results: The elements were collapsed into five steps. In total, 18 patients and 12 health professionals contributed to the content and the design of the tool. The LBP assessment tool covered all ICF components shared among 63 ICF categories.
Conclusions: This study presents the process used to develop the LBP assessment tool, which is the first tool to address all ICF components and integrate biopsychosocial perspectives provided by patients and health professionals in the same tool. Initial evaluation of content validity showed adequate reflection of the construct “functioning and disability”. Further work on the way will evaluate comprehensiveness, acceptability, and degree of implementation of the LBP assessment tool to strengthen its use for clinical practice.