Table 3 Pulmonary functional tests
Non O-ILD (n = 475) | O-ILD (n = 82) | p-value | |
|---|---|---|---|
Pulmonary functional test | |||
FEV1 (L) | 2.31 (1.76–2.88) | 1.75 (1.38–2.41) | < 0.0001 |
FEV1 (%pred.) | 83 (71–96) | 65 (53–77) | < 0.0001 |
FVC (L) | 2.81 (2.16–3.64) | 2.99 (2.32–3.89) | n.s |
FVC (%pred.) | 83 (69–96) | 84 (72–98) | n.s |
FEV1/FVCpost-BD | 81 (77–86) | 62 (58–67) | < 0.0001 |
MEF25/75 (L) | 2.49 (1.87–3.17) | 1.02 (0.60–1.36) | < 0.0001 |
MEF25/75 (%) | 81 (64–108) | 29 (20–41) | < 0.0001 |
RV (L) | 1.76 (1.35–2.21) | 2.43 (1.81–3.26) | < 0.0001 |
RV (%pred.) | 83 (63–104) | 116 (84–152) | < 0.0001 |
TLC (L) | 4.73 (3.82–5.54) | 5.78 (4.77–6.56) | < 0.0001 |
TLC (%pred.) | 79 (69–91) | 93 (82–107) | < 0.0001 |
DLco (mmol/kPa min) | 4.67 (3.3–6.43) | 4.94 (3.27–6.30) | n.s |
DLco (%pred.) | 56 (41–67) | 58 (41–67) | n.s |
KCO (mmol/kPa min/L) | 1.18 (0.95–1.43) | 1.09 (0.92–1.38) | n.s |
KCO (%pred.) | 82 (68–97) | 77 (65–92) | n.s |
FRC (L) | 2.76 (2.33–3.56) | 3.46 (2.94–4.64) | < 0.0001 |
FRC (%pred.) | 92 (75–109) | 113 (93–134) | < 0.0001 |
sGaw (L)a | 1.15 (0.80–1.54) | 0.69 (0.51–0.98) | < 0.0001 |
sGaw (%)b | 87 (59–119) | 60 (42–75) | < 0.01 |