Descriptions of subjects (number, age, nicotine use, and number excluded) relative to cross sectional cumulative exposure to vibration (CVE) and to exposure classes
| Cumulative exposure | Cumulative lifetime exposure | ||||||
|---|---|---|---|---|---|---|---|
| Never exposed or exposed before 1987 | Not exposed during past 5 y | Exposed during past 5 y | NE, CVE=0 mh/s2 | EC1, CVE⩽24 000 mh/s2 | EC2, CVE>24 000 mh/s2 | ||
| Number (n) | 83 | 50 | 52 | 62 | 70 | 53 | |
| Excluded (n) | 2 | 6 | 4 | 3 | 2 | 7 | |
| Age (mean (SD)) | 39.4 (11.6) | 43.4 (10.1) | 38.4 (8.9) | 40.7 (11.5) | 36.4 (10.7) | 45.7 (6.4) | |
| Nicotine use (n) | 45 | 23 | 29 | 25 | 44 | 28 | |