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Table 1 Demographic data for patients in derivation study 1

From: A diagnostic support tool for lumbar spinal stenosis: a self-administered, self-reported history questionnaire

  LSS (n = 137) LDH (n = 97)
Male (%) 46 58
Female (%) 54 42
Mean age (yr) 68 41
Mean duration of symptoms (mo) 21 5
Cauda equina type intermittent claudication 50 -
Radicular type intermittent claudication 87 -
Findings on MRI   
   One level stenosis 102 14
   Two level stenosis 23 0
   Three level stenosis 12 0