Table 3 The abnormal rate of pulmonary parameters and respiratory muscle strength between severe cases and mild cases
From: Impact of coronavirus disease 2019 on pulmonary function in early convalescence phase
Characteristic | Total (n=57) | Severe (n=17) | Non-severe (n=40) | chisq | p value |
|---|---|---|---|---|---|
FEV1 < 80% of pred | 5 (8.8) | 3 (17.6) | 2 (5.0) | 1.066 | 0.302 |
FEV1 ≥ 80% of pred | 52 (91.2) | 14 (82.4) | 38 (95.0) | ||
FVC < 80% of pred | 6 (10.5) | 4 (23.5) | 2 (5.0) | 2.604 | 0.107 |
FVC ≥ 80% of pred | 51 (89.5) | 13 (76.5) | 38 (95.0) | ||
FEV1 / FVC < 80% | 25 (43.9) | 9 (52.9) | 16 (40.0) | 0.811 | 0.368 |
FEV1 / FVC ≥ 80% | 32 (56.1) | 8 (47.1) | 24 (60.0) | ||
TLC < 80% of pred | 7 (12.3) | 4 (23.5) | 3 (7.5) | 1.552 | 0.213 |
TLC ≥ 80% of pred | 50 (87.7) | 13 (76.5) | 37 (92.5) | ||
DLCO < 80% of pred | 30 (52.6) | 13 (76.5) | 17 (42.5) | 5.522 | 0.019* |
DLCO ≥ 80% of pred | 27 (43.4) | 4 (23.5) | 23 (57.5) | ||
R5 ≥ 150 of pred | 8 (14.0) | 2 (11.8) | 6 (15.0) | 0.103 | 0.554 |
R5 < 150 of pred | 49 (86.0) | 15 (88.2) | 34 (85.0) | ||
R20 ≥ 150 of pred | 10 (17.5) | 3 (17.6) | 7 (17.5) | 0.000 | 0.631 |
R20 < 150 of pred | 47 (82.4) | 14 (82.4) | 33 (82.5) | ||
PImax < 80% of pred | 28 (49.1) | 9 (52.9) | 21 (52.5) | 0.001 | 0.976 |
PImax ≥ 80% of pred | 29 (50.9) | 8 (47.1) | 19 (47.5) | ||
PEmax < 80% of pred | 13 (22.8) | 4 (23.5) | 9 (22.5) | 0.007 | 0.592 |
PEmax ≥ 80% of pred | 44 (77.2) | 13 (76.5) | 31 (77.5) |