Table 4. Lung function values.

	Salmon workers N = 79	Trawler fishermen N = 127
FEV1% of predicted*	95.4 (13.7)‡	96.1 (16.2)‡
FVC% of predicted*	96.5 (16.4)‡	95.3 (14.9)‡
FEV1/FVC%*	84.8 (8.9)	84.4 (11.6)
FEV1 <80% of predicted†	13 (16.4)	14 (11.5)
FVC <80% of predicted†	11 (13.9)	22 (18.0)
FEV1/FVC <5th percentile of predicted	4 (5.1)	7 (5.7)

^*Presented as mean (standard deviation).

^†Presented as number (percent).

^‡0.01<P<0.05, one-sample t-test, difference from 100%.

FEV₁: forced expiratory volume in one second; FVC: forced vital capacity.