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Classification of Isocyanate Work-Related Asthma Cases–California, Massachusetts, Michigan, and New Jersey, 1993–2008
| Classification of work-related asthma | Isocyanate Cases
|
Total WRA Cases
|
||
|---|---|---|---|---|
| Number | % | Number | % | |
| Work-aggravated asthma | 14 | 4 | 1,654 | 20 |
| New onset asthma | 347 | 94 | 4,230 | 51 |
| Reactive airways dysfunction syndrome | 18 | 5 | 609 | 7 |
| Occupational asthma | 329 | 89 | 3,621 | 44 |
| Insufficient data to classify | 7 | 2 | 2,355 | 29 |
| Total | 368 | 100 | 8,239 | 100 |
