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 .
The Reliability of the Low Back Outcome Score for Back Pain
Study Design . A prospect i ve test-retest study was conducted to investigate both new and follow-up patients with low back pain presenting to an orthopedic surgeon specializing in back pain . Objectives . To further vali date the internal consistency and test – retest reliability of the Low Back Outcome Score , and to compare these results with other condition-specific disability scales . Summary of Background Data . To be useful in clinical practice , health-specific question naires must demonstrate reliability and validity . Several disease-specific question naires for low back pain have been vali date d to different extents . Methods . In this study , 102 new and 42 follow-up patients consecutively attending a consultant clinic completed the Low Back Outcome Score on their visit  , then again after an interval of 1 week in postal form . This instrument also was completed by 230 patients presenting to a physiotherapist . Results . A response rate of 90 % was achieved for the postal question naire . A test of internal consistency conducted with the study sample achieved a Cronbach alpha coefficient of 0.85 . Overall agreement for test – retest reliability was 84 % , and the reliability coefficient ( K ) reached a range of 0.51 to 0.86 ( P < 0.05 ) . A Bl and /Altman plot was calculated , demonstrating that only 5 % of patient scores change by more than 11.6 scale points between test and retest , which is not sufficient to change outcome categories . Conclusion . The Low Back Outcome Score appears to have good internal consistency and test – retest reliability for use in clinical practice
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 .