Exposure factors associated with neurological stage
| Neurological stage | ||||
|---|---|---|---|---|
| 0 | 1 | 2 or 3 | p Value | |
| n | 63 | 71 | 31 | |
| Age (mean (SD)) | 36.2 (11.9) | 42.7 (10.2) | 48.9 (6.3) | <0.0001 |
| Trade (n (%)): | 0.15 | |||
| Welder | 31 (42) | 34 (46) | 9 (12) | |
| Fitter | 22 (38) | 24 (41) | 12 (21) | |
| Plater | 7 (41) | 7 (41) | 3 (18) | |
| Dresser | 3 (19) | 6 (38) | 7 (44) | |
| Smoking (n (%)): | 0.27 | |||
| Current | 19 (33) | 25 (43) | 14 (24) | |
| Non-smoking | 33 (47) | 27 (39) | 10 (14) | |
| Ex-smoking | 11 (30) | 19 (51) | 7 (19) | |
| Tool use (y, mean (SD)) | 17.2 (11.3) | 25.1 (10.3) | 31.5 (5.9) | <0.0001 |
| Exposure (h, mean (SD)) | 7135 (5069) | 11577 (8704) | 17644 (10330) | <0.0001 |