Most of the outcome question naires had a mixed content reflecting various constructs such as pain and symptoms , sleep disturbances , psychological dysfunctions , physical impairments , and social functions .
STUDY DESIGN A systematic literature review of outcome question naires design ed for assessing functional status or disability in patients with low back pain .
OBJECTIVES To provide a comprehensive overview of all functioning/disability question naires used in recent years and to explore how the main concept(s ) was described or defined in the original paper , the content or the domains of disability , and the measurement properties of the question naires .
SUMMARY OF BACKGROUND DATA A number of clinical tools design ed for evaluating the functional status of patients with low back pain have been developed .
Only a few have been review ed earlier , and there has been little focus on the content reflected in the question naires .
Function and the patient with chronic low back pain.
OBJECTIVE To undertake a comparative examination of the reliability and validity of two frequently used self-report measures of functional disability , the Pain Disability Index  ( PDI ) and the Oswestry Low Back Pain Disability Question naire  ( OLBPDQ ) . DESIGN A descriptive ex-post facto design was used in the study . SETTING Pain clinics and neurosurgical units at three metropolitan hospitals . SUBJECTS One hundred patients with chronic low back pain of noncancer origin were administered the two question naires as part of a larger question naire battery . RESULTS Acceptable internal consistency values of 0.76 for the PDI and 0.71 for the OLBPDQ were obtained . A correlation of r = 0.63 was found between the PDI and the OLBPDQ , supporting the concurrent validity of the two scales . Both the scales were found to be correlated to the Beck Depression Inventory scores ( PDI , r = 0.42 ; OLBPDQ , r = 0.39 ) , with higher disability associated with greater depression . Only the total PDI score was found to be sensitive to functional status differences within the patient sample . CONCLUSIONS These findings support other recent work in favor of the PDI . The PDI had a slightly higher internal consistency and was more sensitive than the OLBPDQ
Most of the outcome question naires had a mixed content reflecting various constructs such as pain and symptoms , sleep disturbances , psychological dysfunctions , physical impairments , and social functions .
STUDY DESIGN A systematic literature review of outcome question naires design ed for assessing functional status or disability in patients with low back pain .
OBJECTIVES To provide a comprehensive overview of all functioning/disability question naires used in recent years and to explore how the main concept(s ) was described or defined in the original paper , the content or the domains of disability , and the measurement properties of the question naires .
SUMMARY OF BACKGROUND DATA A number of clinical tools design ed for evaluating the functional status of patients with low back pain have been developed .
Only a few have been review ed earlier , and there has been little focus on the content reflected in the question naires .