Prevalence of VWF and distribution of finger blanching score in the vibration exposed worker groups
| Stone grinders (n=188) | Stone carvers (n=237) | Quarry drillers (n=145) | Painters (n=394) | Boilermakers (n=179) | Caulkers (n=94) | Forestry workers (n=320) | |
|---|---|---|---|---|---|---|---|
| Results expressed as number (percentage). Age and smoking adjusted odds ratios (OR) and 95% confidence intervals (95% CI) for VWF among the vibration exposed groups (reference category: stone grinders) were obtained from logistic regression analysis. | |||||||
| Score 0 | 162 (86.2) | 150 (63.3) | 86 (59.3) | 329 (83.5) | 142 (79.3) | 43 (45.7) | 213 (66.5) |
| Score 1–8 | 10 (5.3) | 12 (5.1) | 13 (9.0) | 34 (8.6) | 18 (10.1) | 16 (17.0) | 30 (9.4) |
| Score 9–20 | 9 (4.8) | 32 (13.5) | 27 (18.6) | 24 (6.1) | 15 (8.4) | 24 (25.5) | 48 (15.0) |
| Score ≥21 | 7 (3.7) | 43 (18.1) | 19 (13.1) | 7 (1.8) | 4 (2.3) | 11 (11.7) | 29 (9.1) |
| VWF (score ≥1) | 26 (13.8) | 87 (36.7) | 59 (40.7) | 65 (16.5) | 37 (20.7) | 51 (54.3) | 107 (33.4) |
| OR (95% CI) | 1.0 (–) | 4.4 (2.5 to 7.8) | 3.7 (2.2 to 6.3) | 1.2 (0.7 to 2.1) | 1.3 (0.7 to 2.3) | 10.2 (5.4 to 19.1) | 2.2 (1.3 to 3.6) |