TABLE 1.
Characteristics in 2007 of Denim Sandblasters by Nonparticipants and Those Whose Vital Status and Medical Tests Were Reassessed in 2011
| Characteristics in 2007 | Nonparticipants (n = 62) |
Reassessed in 2011 (n = 83) |
|---|---|---|
| Age at first admission, y | 23 ± 5 | 23 ± 6 |
| First exposure age, y | 17 ± 6 | 17 ± 5 |
| Ever smoker | 46 (74) | 58 (70) |
| Smoking, pack-ya | 7.1 ± 4.6 | 5.0 ± 4.9 |
| Exposure duration, mo | 35 ± 24 | 41 ± 27 |
| Time since first exposure, mo |
78 ± 35 | 81 ± 37 |
| Working as a foremana | 57 (92) | 58 (70) |
| Months as a foreman | 32 ± 28 | 31 ± 29 |
| Places of work, No. | 3 ± 2 | 2 ± 1 |
| Sandblasting devices, No. |
4 ± 1 | 4 ± 1 |
| Sleeping at workplacea | 57 (92) | 51 (61) |
| FVC, L | 4.37 ± 0.96 | 4.47 ± 1.08 |
| FVC, % predicted | 93.6 ± 22.8 | 95.6 ± 21.9 |
| FEV1, L | 3.82 ± 0.90 | 3.83 ± 1.00 |
| FEV1, % predicted | 94.5 ± 23.1 | 95.9 ± 25.4 |
| FEV1/FVC % | 86.8 ± 9.4 | 86.4 ± 9.5 |
Data presented as mean ± SD or No. (%) unless otherwise stated.
a
P < .05.