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 .
A comparison of pain, functional limitations, and work status indices as outcome measures in back pain research.
STUDY DESIGN We conducted a prospect i ve study with a 2-year follow-up . OBJECTIVE To compare pain , functional limitations , and work status indices as measures of outcome among back pain patients . SUMMARY OF BACKGROUND DATA Work status , pain , and functional limitations indices are often considered as interchangeable outcome measures in back pain research . This perspective has been criticized by several authors , who argue that each of these outcome measures reflects a different construct that may vary independently of the others . METHODS The study was conducted on 720 patients , who sought care for back pain in primary care setting s of a large health maintenance organization in 1989 - 90 , and were interviewed one month and two years later . X2 analyses and receiver operating characteristic curves were used to compare the accuracy of a pain rating and a modified 16-item Rol and -Morris score in classifying patients on work status and on the change in work status over time . RESULTS Moderate agreement between the pain and functional limitations measures and work status was observed . Pain and functional limitations change scores agreed moderately with improvement in work status , but were poorly associated with decline in work status . CONCLUSIONS Although the pain , functional limitations , and work status indices examined in this study are related , they are not equivalent and should not be regarded as interchangeable . These results argue for a clearer distinction of outcome measures in back pain research
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 .