The primary
outcome measure was the Oswestry Disability Index (ODI) version
2.0.27,28 It is presented as a 0 to100score where lower scores
represent lower levels of low back pain disability. Secondary outcome
measures include a visual analogue scale (VAS) to back pain
intensity during the latest week. This was presented with a single
line and scoring range from 0 for no pain to 100 mm for unbearable
pain was used.29,30