Table III.
Relationship between positive patch test reactions to PPDA and occupational work
| Occupation, N = 128 | RR, n (%) | PR, n (%) | NR, n (%) |
|---|---|---|---|
| Office worker, N = 24 | 1 (4.0) | 0 | 23 (96.0) |
| Farmer, N = 16 | 13 (81.0) | 0 | 3 (19.0) |
| Hairdresser, N = 8 | 7 (88.0) | 1 (12.0) | 0 |
| Health care employee, N = 9 | 1 (11.0) | 2 (22.0) | 6 (67.0) |
| Occupational contact with ink, N = 9 | 4 (44.0) | 2 (22.0) | 3 (33.0) |
| Mechanic, N = 3 | 2 (67.0) | 1 (33.0) | 0 |
| Food service worker, N = 4 | 2 (50.0) | 0 | 2 (50.0) |
| Construction worker, N = 8 | 5 (62.5) | 1 (12.5) | 2 (25.0) |
| Student, N = 12 | 0 | 0 | 12 (100) |
| Housewife, N = 7 | 0 | 0 | 7 (100) |
| Seller, N = 6 | 2 (33.0) | 1 (17.0) | 3 (50.0) |
| Retiree, N = 4 | 1 (25.0) | 0 | 3 (75.0) |
| Cleaner, N = 3 | 2 (67.0) | 1 (33.0) | 0 |
| Occupational contact with textiles, N = 3 | 0 | 1 (33.0) | 2 (67.0) |
| Policeman, N = 2 | 1 (50.0) | 0 | 1 (50.0) |
| Computer scientist, N = 2 | 1 (50.0) | 1 (50.0) | 0 |
| Others*, N = 8 | 5 (62.5) | 1 (12.5) | 2 (25) |
*
These include: drainage engineer, customs officer, missionary, beauty salon worker, cashier, worker operating the injection molding machine, municipal sanitation worker, carpenter, N – number of individuals allergic to PPDA, NR – no relation to occupational work, PR – probable relation to occupational work, RR – reliable relation to occupational work.