Patients characteristics
| All n=50 | No CT n=5 | None/Mild n=12 | Moderate n=17 | Severe n=16 | |
| Age | 54 (46;62) | 30 (30;46) | 55 (46;63) | 53 (47;56) | 58 (49;67) |
| Male sex, n (%) | 28 (56) | 2 (40) | 4 (33) | 9 (53) | 13 (81) |
| BMI (kg·m−2) | 27.0 (24.6;32.5) | 24.0 (21.0;25.0) | 28.5 (25.0;34.0) | 28.0 (24.5;31.0) | 27.0 (25.8;31.5) |
| Respiratory Comorbidities | |||||
| Emphysema | 2 (4) | 0 (0) | 1 (8) | 1 (6) | 0 (0) |
| Asthma | 2 (4) | 0 (0) | 2 (17) | 0 (0) | 0 (0) |
| Sarcoidosis | 1 (2) | 0 (0) | 1 (8) | 0 (0) | 0 (0) |
| Smoking history | |||||
| Active, n (%) | 5 (10) | 0 (0) | 1 (8) | 3 (18) | 1 (6) |
| Former, n (%) | 9 (18) | 0 (0) | 2 (17) | 3 (18) | 4 (25) |
| Care modality | |||||
| Out-patient, n (%) | 9 (18) | 4 (80) | 4 (33) | 1 (6) | 0 (0) |
| Infectious diseases ward, n (%) | 33 (66) | 1 (20) | 8 (66) | 15 (88) | 9 (56) |
| ICU, n (%) | 7 (14) | 0 (0) | 0 (0) | 1 (6) | 7 (44) |
| Respiratory support | |||||
| None, n (%) | 20 (40) | 5 (100) | 9 (75) | 6 (6) | 0 (0) |
| Oxygen 0–6 L·min−1, n (%) | 24 (48) | 0 (0) | 3 (25) | 11 (65) | 10 (63) |
| Oxygen ≥12 L·min−1, n (%) | 1 (2) | 0 (0) | 0 (0) | 0 (0) | 1 (6) |
| High flow oxygen, n (%) | 4 (8) | 0 (0) | 0 (0) | 0 (0) | 4 (25) |
| Invasive ventilation, n (%) | 1 (2) | 0 (0) | 0 (0) | 0 (0) | 1 (6) |
| FVC (% pred) | 93 (85;99) | 101 (93;102) | 93.5 (88;97) | 87 (85;101) | 90 (81;96) |
| TLC (% pred) | 91.5 (81;103) | 104 (102;120) | 97.5 (91;103) | 91 (81;101) | 82.5 (77;92) |
| TLCO (% pred) | 80 (70;92) | 90 (81;91) | 87 (73;92) | 81 (72;93) | 71 (57;78) |
| KCO (% pred) | 94 (78;108) | 96 (76;99) | 99 (77;108) | 101 (89;111) | 90 (84;95) |
| FEV1 (% pred) | 93 (83;100) | 104 (93;111) | 92 (85;96) | 91 (82;97) | 92 (85;104) |
| FEV1/FVC | 0.81 (0.75;0.87) | 0.85 (0.84;0.87) | 0.78 (0.74;0.84) | 0.79 (0.77;0.87) | 0.84 (0.75;0.88) |
| PFT interpretation | |||||
| Normal, n (%) | 24 (48) | 3 (60) | 8 (66)* | 9 (53)* | 3 (19)* |
| Restrictive pattern, n (%) | 4 (8) | 1 (20) | 0 (0) | 3 (18) | 2 (13) |
| Restriction with altered diffusion capacity, n (%) | 9 (18) | 0 (0) | 0 (0) | 2 (12) | 6 (38) |
| Altered diffusion capacity only, n (%) | 13 (26) | 1 (20) | 4 (33) | 3 (18) | 5 (31) |
Unless specified, results are presented as median (Q1;Q3). Extent of pneumonia on CT was defined as absent, mild (<10%), moderate (10–24%) or wide-to-severe (≥25%) [7].
*p<0.05.