New standard criteria for cold provocation test with hand immersion for cases of HAVS in Japan
Keywords:Acoustic surface wave devices, Control groups, Evaluation system, Finger skin, Logical combination, Lower average, National standard, Sensitivity and specificity, Vibrating tools, Vibration white fingers
AbstractA national standard for cold-water provocation tests based on an analysis of Japanese multi-institutional data was established. Data was collected from 872 individuals who underwent cold-water provocation testing at 7 institutions. Three indices were used for the analysis of finger skin temperature and the scores from the 3 indices were incorporated into an evaluation system that logically combined them. The results show that the most frequently used vibrating tools were chain saws (34%) and chipping hammer (25%) in the patient group. When compared to the control group, members of the patient group with vibration white finger (VWF) had significantly lower average values for the 3 indices. The sensitivity and specificity of the scored method are found to be 7 1.7% and 72.0%, while the logical combination evaluation system yielded sensitivity and specificity values of 70.6% and 74.0%.
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