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Table 1 Characteristics of the exposed subjects

From: Nailfold capillary microscopy for evaluating hand-arm vibration syndrome

  VWF (n = 18) Non-VWF (n = 44) pvalue
Age (years) * 57.1 ± 4.9 44.5 ± 11.0 0.001
Vibration exposure (years) 25.6 ± 6.7 -  
Smoking (%)    
Non-smoker 33.3 29.5 0.751
Ex-smoker 22.2 31.8  
Current smoker 44.4 38.6  
Alcohol consumption (%)    
Non-drinker 42.9 -  
Drinker 57.1 -  
Past medical history (%)    
No past disease 72.2 93.8 0.098
Hypertension 11.1 6.3  
Finger injury 5.6 -  
Other diseases 11.1 -  
Source of vibration (%)    
Grinder 61.1 -  
Rock drill 38.9 -  
Antivibration gloves (%)    
Nothing 11.1 -  
Only cotton gloves 66.7 -  
Always 22.2 -  
Tasks (%)    
Painting 27.8 -  
Fitting 22.2 -  
Welding 11.1 -  
Mining 33.3 -  
Digging 5.6 -  
Mode of transportation to work (%)    
Walking 6.7 -  
Motorcycle 46.7 -  
Bus 46.7 -  
  1. Mean ± SD.
  2. *t test.
  3. Chi-square test.
  4. Abbreviations: VWF vibration-induced white finger, Non-VWF non- vibration-induced white finger.