These analyses showed similar results, i.e. lung function was reduced in both the high dry dust exposure group (FVC 370 mL (95% CI -670– -70 mL; p50.018); FEV1 -320 mL (95% CI -540– -100 mL; p50.005); and PEF -1,460 mL?s-1 (95% CI 2,100– -820 mL?s-1; p50.0001)) and the high green dust exposure group (FVC -220 mL (95% CI - 640–210 mL; p50.320); FEV1 -140 mL (95% CI -450–180 mL; p50.396); and PEF -620 mL?s-1 (95% CI 1,550–300 mL?s-1; p50.178)).