Description

The Quebec Back Pain Disability Scale (QBPDS-20) is a self-report instrument designed to assess the degree of functional disability associated with low back pain. It consists of 20 items that evaluate the level of difficulty individuals experience when performing common daily activities.

The scale focuses primarily on the functional consequences of low back pain and includes activities related to mobility, body positioning, lifting and carrying objects, walking, standing, and other physical demands of everyday life. It is widely used in both clinical practice and research to quantify the impact of low back pain on an individual’s functional capacity.

Objective

The primary objective of the QBPDS-20 is to provide a reliable and quantitative assessment of disability related to low back pain. The instrument can be used to evaluate an individual’s baseline functional status, monitor changes over time, and assess improvement following therapeutic or rehabilitation interventions.

It is also useful for comparing functional disability across different patient groups and for evaluating treatment outcomes in clinical and research settings.

Scoring

The QBPDS-20 consists of 20 items, each rated on a 6-point scale ranging from 0 to 5, according to the degree of difficulty experienced when performing a particular activity.

The individual item scores are summed to produce a total score ranging from 0 to 100. Higher scores indicate greater functional disability and limitations associated with low back pain, whereas lower scores indicate better functional ability.

Changes in the total score over time can also be used to monitor functional progress and evaluate an individual’s response to treatment or rehabilitation.

Applications

The QBPDS-20 can be used in individuals experiencing acute, subacute, or chronic low back pain and is particularly relevant in physiotherapy, rehabilitation, musculoskeletal medicine, and clinical research.

By providing a standardized measure of functional disability, the scale can contribute to a more comprehensive assessment of patients with low back pain. It may also be combined with measures of pain intensity, physical functioning, and health-related quality of life to provide a broader understanding of the impact of low back pain on everyday functioning.

References

Kopec JA, Esdaile JM, Abrahamowicz M, Abenhaim L, Wood-Dauphinee S, Lamping DL, Williams JI. The Quebec Back Pain Disability Scale: Measurement properties. Spine. 1995;20(3):341-352.

Kopec JA, Esdaile JM, Abrahamowicz M, Abenhaim L, Wood-Dauphinee S, Lamping DL, Williams JI. The Quebec Back Pain Disability Scale: Conceptualization and development. Journal of Clinical Epidemiology. 1996;49(2):151-161.