Table 2

 Changes in pulmonary function tests over the follow up period

IPF(n = 9)Sarcoidosis(n = 5)COP(n = 4)
Data are expressed as mean (SE).
Percentage change per month in FVC and Tlco were calculated by dividing the change in FVC and Tlco by the follow up period in months for each patient.
IPF, idiopathic pulmonary fibrosis; COP, cryptogenic organising pneumonia; FVC, forced vital capacity; Tlco, carbon monoxide transfer factor.
*n = 7; †n = 3; ‡n = 1.
Mean (range) follow up (months)24.7 (6–42)17 (10–24)20 (12–32)
FVC (% change from initial assessment)−10.6 (4.2)12.2 (6.6)30.2 (10.1)
FVC (% change/month)−0.4 (0.4)0.8 (0.5)1.5 (0.3)
Tlco (% change from initial assessment)−3.9 (10.2)*19 (12.2)†54‡
Tlco (% change/month)−0.2 (1.2)*1 (0.8)†4.5‡