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Table 1 General characteristic between non-exposed and exposed group based on Stockholm workshop stage

From: Application of cold intolerance symptom severity questionnaire among vibration-exposed workers as a screening tool for the early detection of hand-arm vibration syndrome: a cross-sectional study

  Non-exposed (n = 34) Exposed (n = 76)
Vascular stage p value Sensorineural stage p value
Stage 0 (n = 35) Stage 1 (n = 19) Stage 2 (n = 22) Stage 0 (n = 25) Stage 1 (n = 38) Stage 2 (n = 13)
Age 40.7 ± 10.3 47.5 ± 8.8 49.3 ± 9.3 52.2 ± 6.8 < 0.01 47.1 ± 9.5 49.7 ± 7.7 52.5 ± 8.2 < 0.01
Total exposure   225.6 ± 112.8 242.4 ± 106.0 244.2 ± 87.4 < 0.01 197.1 ± 103.1 252.7 ± 98.4 257.4 ± 105.3 < 0.01
Daily exposure   5.2 ± 2.9 6.7 ± 2.2 4.8 ± 3.2 < 0.01 5.7 ± 2.9 5.1 ± 3.0 6.2 ± 2.5 < 0.01
Non-smoker 22 (64.7) 24 (68.6) 13 (68.4) 11 (50.0) 0.505 20 (80.0) 22 (57.9) 6 (46.2) 0.160
Smoker 12 (35.3) 11 (31.4) 6 (31.6) 11 (50.0)   5 (20.0) 16 (42.1) 7 (53.8)  
Diabetes No 30 (88.2) 35 (100) 19 (100) 22 (100) 0.037 25 (100) 38 (100) 13 (100) 0.032
  Yes 4 (11.8)   
Hypertension No 31 (91.2) 31 (88.6) 16 (84.2) 20 (90.9) 0.864 23 (92.0) 32 (84.2) 12 (92.3) 0.771
  Yes 3 (8.8) 4 (11.4) 3 (15.8) 2 (9.1)   2 (8.0) 6 (15.8) 1 (7.7)  
Dyslipidemia No 34 (100) 35 (100) 19 (100) 21 (95.5) 0.373 25 (100) 37 (97.4) 13 (100) 1.000
  Yes 1 (4.5)   1 (2.6)  
  1. Unit: mean ± standard deviation, number (percentage)
  2. p-value was calculated by ANOVA for continuous variables
  3. p-value was calculated by chi-square test for categorical variables