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 .
Functional Rating Index: A New Valid and Reliable Instrument to Measure the Magnitude of Clinical Change in Spinal Conditions
Study Design . A prospect i ve cohort design was used to evaluate the Functional Rating Index in a multicentered setting with 139 participants . The Functional Rating Index is a self-reporting instrument consisting of 10 items , each with 5 possible responses that express graduating degrees of disability . Objectives . The goal of this study was to evaluate the psychometric qualities of the Functional Rating Index . Summary of Background Data . The Functional Rating Index combines the concepts of the Oswestry Low Back Disability Question naire and the Neck Disability Index and seeks to improve on clinical utility ( time required for administration ) . Methods . One hundred thirty-nine subjects with spinal complaints participated in four different cohorts to study reliability , validity , responsiveness , and clinical utility . Results . Reliability : Test-retest : Intraclass correlation coefficient was excellent ( ICC3,k = 0.99 ) ; interitem correlation : Item efficiency was good , ranging between 0.54 and 0.82 , with a moderate correlation among all items ; Cronbach ’s alpha was excellent ( 0.92 ) . Validity : construct : The Functional Rating Index correlated with the Disability Rating Index ( 0.76 ) , the Short Form-12 Physical Component Score ( 0.76 ) , and the Short Form-12 Mental Component Score ( 0.36 ) . Responsiveness : Overall , the size effect was 1.24 , which is commendable . Clinical utility : Time required by the patient and staff averaged 78 seconds per administration , which is noteworthy . Effect of Sociodemographics : Total scores were not affected by education , gender , nor age , suggesting minimal external validity bias . Conclusions . The Functional Rating Index appears to be psychometrically sound with regard to reliability , validity , and responsiveness and is clearly superior to other instruments with regard to clinical utility . The Functional Rating Index is a promising useful instrument in the assessment of spinal conditions
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 .