| Characteristic | Value# |
| Age yrs | 46 (19–66) |
| Male | 118 (80) |
| Race | |
| Black or African–American | 99 (67) |
| White | 47 (32) |
| Other | 1 (1) |
| Smoking status | |
| Current | 33 (22) |
| Former | 36 (24) |
| Never | 78 (53) |
| Current work classification | |
| Production | 66 (45) |
| Production support | 39 (27) |
| Non-production | 42 (29) |
| Tenure at soy plant yrs | 8 (<1–34) |
| Worked in area with mould in previous 12 months¶ | 57 (39) |
Data are presented as median (range) or n (%). #: some totals do not sum to 100% due to rounding; ¶: self-reported.