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Spine (Phila Pa 1976). 2001 Aug 1;26(15):E344-7.

Cross-cultural adaptation of the lumbar North American Spine Society questionnaire for Italian-speaking patients with lumbar spinal disease.

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  • 1Institute of Orthopedics, University of Ferrara, Ferrara, Italy. rpadua@mclink.it

Abstract

STUDY DESIGN:

A cross-cultural adaptation and cross-sectional study of a sample of lumbar spine patients, with a subsample followed prospectively for retest reliability.

OBJECTIVES:

To assess the Italian version instrument reliability and validity.

SUMMARY OF BACKGROUND DATA:

The orthopaedic outcome measurements have been usually focused on objective parameters as radiograph measures or other technical aspects. However, these parameters are weakly related with outcomes that are more relevant to patients as functional status and symptoms. In the last ten years, the patient-oriented measures have become an important aspect of spinal clinical outcome evaluation. The most common instruments to assess patient perspective are self-administered questionnaires that must be validated by a widely accepted process to evaluate reliability and validity, which are fundamental for every instrumental measure.

METHODS:

The North American Spine Society (NASS) questionnaire was culturally adapted for Italian-speaking people following the Guillemin criteria. The Italian version was tested on 74 consecutive patients who were referred to the authors' department and suffered from low back pain with leg irradiation. The results were compared with other validated patient-oriented measures. Forty-eight-hour retests were performed on a subsample of 45 patients.

RESULTS:

The questionnaire was favorably accepted by patients. The lumbar spine pain and disability and neurogenic symptoms subscales showed a high correlation with other patient-oriented measures, as hypothesized, and it also showed good values on test-retest.

CONCLUSIONS:

The questionnaire should be considered for patient health status monitoring and for clinical trials.

PMID:
11474366
[PubMed - indexed for MEDLINE]
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