sentence: Thresholds > 48.5 ° C for hot or < 19.0 ° C for cold ; > 0.4 m / s for 31.5 Hz or > 1.0 m / s for 125 Hz were taken as abnormal ( HSE 2005 ; Lindsell and Griffin 2003 ) , making the maximum QST score per finger four.The relationship between the mean SWM threshold of the two digits with the highest thresholds and the number of QST abnormalities in the same hand of subjects with HAVS was modelled using mixed effects Poisson regression with the subject as the random effect and using a restricted cubic spline with three knots .