Table 1

Changes in lung function tests after challenge exposure to the vanadium based catalyst

FVC (l) (% predicted)FEV1 (l) (% predicted)TL,CO mmol/min/kPa (% predicted)
FVC, forced vital capacity; FEV1, forced expiratory volume in one second; TL,CO, transfer factor for carbon monoxide (single breath method).
Baseline4.82 (109)3.59 (97)6.44 (63)
Post-challenge
    8 hours4.04 (91)2.91 (79)6.49 (63)
    24 hours3.42 (77)2.48 (67)6.13 (59)
    48 hours3.72 (84)2.88 (78)5.79 (56)
    7 days3.86 (87)2.51 (68)5.73 (56)
    21 days4.65 (105)3.58 (97)6.81 (66)