The psychometric sample consisted of 558 patients of
which 134 (24.0%) were male and 424 (76.0%) were female.
Age ranged from 19 to 81 years with a mean age
49.9 ± 11.4 years. The mean pain intensity was 45.7 mm ±
20.8 mm on a VAS; mean pain duration was 7.54 ±
7.52 years