Agreement between 2 pain visual analogue scales, by age and area of complaint in neck and low back pain subjects: the standard pen and paper VAS versus plastic mechanical sliderule VAS
Objective: This study endeavoured to determine the agreement between the standard pencil and paper pain VAS (pVAS) and a realtively newly designed plastic mechanical (slide-rule) VAS (mVAS) in assessing cervical and lumbar pain intensity in cervical pain vs low back…