Responses to treatment
| Response | Definition |
|---|---|
| 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. | |
| Improved | Increase of ⩾10% in FVC or TLCO without decrease of ⩾10% in either |
| Unchanged | Increase or decrease by <10% in FVC and TLCO; or increase of ⩾10% in FVC or TLCO with decrease of ⩾10% in the other |
| Worse | Decrease of ⩾10% in FVC or TLCO without increase of ⩾10% in either |