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Table 3 Pulmonary function tests (PFTs)

From: Centrilobular emphysema combined with pulmonary fibrosis results in improved survival

Variable ES 0
(n= 48)
0 < ES ≤ 2
(n= 26)
ES > 2
(n = 28)
*P value
FEV1 % predicted; median [1st, 3rd] 53 [43, 74] 59 [48, 77] 66 [60, 76] NS
FVC % predicted; median [1st, 3rd] 47 [38, 63] 50 [43, 62] 60 [55, 73] < 0.01
FEV1/FVC ratio median [1st, 3rd] 84 [81, 88] 87 [80, 89] 81 [72, 86] < 0.05
TLC % predicted; median [1st, 3rd] 44 [39, 57] 50 [44, 59] 64 [57, 73] <.001
DLCO, % predicted; median [1st, 3rd] 28 [19, 34] 31 [20, 36] 27 [20, 37] NS
  1. *Kruskal-Wallis one-way ANOVA ES, emphysema score; FEV1, forced expiratory volume in one second; FVC, forced vital capacity; TLC, total lung capacity; DLCO, diffusing capacity for carbon monoxide; NS, not significant (P > 0.05).