Table 2 Demographic data for patients in derivation study 2
Radicular type (n = 55) | Cauda equina type (n = 60) | |
|---|---|---|
Male (%) | 52 | 42 |
Female (%) | 48 | 58 |
Mean age (yr) | 68 | 71 |
Mean duration of symptoms (mo) | 19 | 32 |
Findings on MRI | ||
One level stenosis | 43 | 47 |
Two level stenosis | 12 | 10 |
Three level stenosis | 0 | 3 |