Table 1

 Responses to treatment

FVC, forced vital capacity; TLCO, reduced carbon monoxide transfer factor.
FVC better and TLCO worse (8 patients), or FVC worse and TLCO better (5 patients), were counted as unchanged.
ImprovedIncrease of ⩾10% in FVC or TLCO without decrease of ⩾10% in either
UnchangedIncrease or decrease by <10% in FVC and TLCO; or increase of ⩾10% in FVC or TLCO with decrease of ⩾10% in the other
WorseDecrease of ⩾10% in FVC or TLCO without increase of ⩾10% in either