Variables | Impaired PFTs (n = 248) | Impaired KCO(%) (n = 69) | Impaired FEV1(%) (n = 37) | Normal PFTs (n = 95) | p value |
---|---|---|---|---|---|
Lung function | |||||
FVC, % | 84.7 (22.3) | 111.8 (19.9) | 82.6 (21.3) | 103.9 (13.4) | < 0.001acdf |
FEV1, % | 44.9 (16.8) | 101.2 (17.8) | 54.6 (20.1) | 101.8 (12.3) | < 0.001acdf |
FEV1/FVC, % | 0.42 (0.12) | 0.72 (0.11) | 0.51 (0.13) | 0.80 (0.08) | < 0.001abcdf |
KCO, % | 53.2 (13.9) | 65.5 (10.4) | 97.4 (14.4) | 96.7 (12.1) | < 0.001abcde |
Quality of life | |||||
CAT | 16.7 (8.5) | 8.6 (7.1) | 12.9 (8.9) | 5.9 (6.7) | < 0.001acf |
BODEx | 3.1 (1.9) | 0.4 (0.7) | 1.9 (1.9) | 0.2 (0.4) | < 0.001abcdf |
EQ-5D | 0.74 (0.24) | 0.9 (0.14) | 0.81 (0.18) | 0.93 (0.10) | < 0.001acf |
VAS | 53.6 (24.1) | 73.1 (17.0) | 61.6 (24.1) | 76.4 (26.6) | < 0.001acf |
Exercise/activity | |||||
Active days in last week | 2.7 (2.4) | 2.7 (2.4) | 2.7 (2.3) | 2.6 (2.2) | 0.994 |
Active days usual week | 2.8 (2.4) | 3.0 (2.3) | 3.1 (2.4) | 2.7 (2.1) | 0.822 |
Minutes walked per day | 56.9 (67.7) | 60.2 (49.2) | 77.3 (76.4) | 64.6 (59.6) | 0.034 |
Blood analysis | |||||
Haemoglobin | 15.4 (1.6) | 14.7 (1.4) | 15.1 (1.9) | 14.1 (2.6) | < 0.001acf |
White blood cells | 7.5 (2.1) | 6.2 (1.7) | 6.8 (1.7) | 6.1 (1.8) | < 0.001ac |
Neutrophils | 4.8 (2.5) | 4.1 (4.7) | 5.2 (7.3) | 3.5 (1.3) | < 0.001ac |
Eosinophils | 0.23 (0.35) | 0.18 (0.22) | 0.27 (0.54) | 0.24 (0.59) | 0.175 |
Platelets | 239.2 (75.7) | 216.8 (65.0) | 235.9 (56.0) | 235.8 (66.8) | 0.134 |
AAT (mg/dL)* | 24.4 (7.6) | 22.1 (9.2) | 27.1 (10) | 23.3 (7.5) | 0.012d |
AST (UI/L) | 29.3 (14.3) | 36.3 (34.3) | 31.3 (13.8) | 27.5 (13.9) | 0.159 |
ALT (UI/L) | 29.4 (18.6) | 30.3 (16.7) | 30.7 (15.2) | 29.3 (19.5) | 0.561 |
GGT (UI/L) | 52.7 (52.1) | 42.2 (49.7) | 42.5 (39.3) | 30.3 (25.2) | < 0.001f |
FIB-4 | 1.7 (3) | 2.4 (4.2) | 1.4 (0.7) | 1.1 (0.7) | < 0.001ef |