Models using absolute values | Models using % of predicted | |||
Beta (95% CI) | P value | Beta (95% CI) | P value | |
6MWT (metres) | ||||
Inpatient | −39 (−77 to −1.6) | 0.043 | −4.8 (−11 to 0.92) | 0.10 |
ICU | −96 (−143 to −50) | <0.0001 | −14 (−21 to −7.0) | 0.0001 |
FVC (litres) | ||||
Inpatient | 0.09 (−0.23 to 0.41) | 0.90 | −1.4 (−8.0 to 5.2) | 0.69 |
ICU | −0.34 (−0.73 to 0.05) | 0.09 | −7.7 (−16 to 0.5) | 0.07 |
FEV1 (litres) | ||||
Inpatient | 0.06 (−0.16 to 0.3) | 0.57 | −2.0 (−8.8 to 4.7) | 0.55 |
ICU | −0.13 (−0.41 to 0.14) | 0.34 | −4.5 (−13 to 3.8) | 0.29 |
FEV1/FVC (%) | ||||
Inpatient | 1.6 (−6.2 to 3.0) | 0.51 | – | – |
ICU | 2.1 (−3.5 to 7.7) | 0.46 | – | – |
DLCO (mL/min/mm Hg) | ||||
Inpatient | −0.31 (−0.95 to 0.32) | 0.33 | −7.9 (−14 to −1.8) | 0.01 |
ICU | −1.6 (−2.4 to −0.83) | <0.0001 | −20 (−27 to −13) | <0.0001 |
Saturation after 6MWT (%) | ||||
Inpatient | −0.21 (−1.4 to 0.9) | 0.71 | – | – |
ICU | −2.1 (−3.5 to −0.71) | 0.004 | – | – |
mMRC | ||||
Inpatient | 1.0 (0.006 to 2.0) | 0.049 | – | – |
ICU | 0.75 (−0.38 to 1.9) | 0.19 | – | – |
FEV1, forced expiratory volume in 1 s; FVC, forced vital capacity; ICU, intensive care unit; mMRC, modified Medical Research Council; 6MWT, 6 min walk test.