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Table 8 Prevalence (%) of symptoms among the examined carpenters (N = 193), non-examined carpenters at the same companies, but working at other sites from the ones that were examined (N = 202), and at other companies (N = 297) (all men)

From: Adverse health manifestations in the hands of vibration exposed carpenters - a cross sectional study

  Carpenters
- examined
Carpenters
- not examined
- same companies
Carpenters
- not examined
- other companies
N (%) N (%) N (%)
Age, mean (min.-max.) 40 (17–65) 46 (23–67) a 45 (19–66) b
Negative neural manifestations
 Impaired perception of touch 15 25 25
 Impaired perception of cold 10 17 17
 Impaired perception of warmth 12 23 18
 Tendency to drop things 12 18 23
 Difficulty buttoning clothes 7 14 19
 Impaired grip strength 18 28 33
Positive neural manifestations
 Increased sensation of cold 35 49 45
 Numbness or tingling 26 46 41
 Cramp 14 33 28
 Shaking 14 21 23
 Hand sweat 18 18 21
Provoked manifestations
 White fingers when cold or damp 9 32c 30d
 Pain when cold 24 44 46
Musculoskeletal manifestations
 Hand/elbow pain 31 50 53
 Neck/shoulder pain 35 61 57
  1. aData missing from 14 subjects
  2. bData missing from 5 subjects
  3. cData missing from 68 subjects
  4. dData missing from 52 subjects