The North American spine society lumbar spine outcome assessment Instrument: reliability and validity tests.

@article{Daltroy1996TheNA,
  title={The North American spine society lumbar spine outcome assessment Instrument: reliability and validity tests.},
  author={Lawren Daltroy and William L. Cats-Baril and Jeffrey N. Katz and Anne H. Fossel and Matthew H. Liang},
  journal={Spine},
  year={1996},
  volume={21 6},
  pages={741-9}
}
STUDY DESIGN A cross-sectional study of a convenience sample of lumbar spine patients, with a subsample followed for retest reliability. OBJECTIVES To assess the instrument's reliability, validity, and acceptability to patients. SUMMARY OF BACKGROUND DATA Patients with eight diagnoses, four before surgery and four after surgery, were recruited from six orthopedic practices to test the questionnaire. METHODS One hundred sixty-seven patients were approached through the physician's office… CONTINUE READING
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