Demographic data of patient groups
Group | n | Male/ female |
Age (mean SD) (y) |
Normal controls | 18 | 9/9 | 34 (10) |
Neurological controls: | |||
Peripheral neuropathy | 3 | ||
Motor neuron disease | 2 | ||
Sciatica | 4 | ||
Spinal stenosis | 2 | ||
Back pain | 2 | ||
Disc prolapse | 1 | ||
Headache | 1 | ||
Mechanical nerve root damage | 1 | ||
Sleep disorder | 3 | ||
Vertebrobasilar ischaemia | 1 | ||
Total | 20 | 9/11 | 53 (15) |
Depression | 46 | 19/27 | 53 (16) |