Table 2.
Pulmonary Function | Percentage Predicted FVC | Percentage Predicted FEV1 | FEV1/FVC % | ||||
< 80% | > 80% | <80 % | > 80% | < 80% | 80–90% | > 90% | |
Number of workers | 27(5)a | 14(2)a | 15(3)a | 26(4)a | 7(2)a | 19(2)a | 15(3)a |
Percentage | 66% | 34% | 37% | 63% | 18% | 46% | 36% |
a Number of workers checked (Number of Smokers)