| | Variable | All patients
| ICU admission
| No ICU admission
| value |
| | Age (years), median (IQR) | 69.0 (57.5, 79.7) | 71.0 (57.0, 81.0) | 66.0 (58.0, 79.0) | 0.534 | | Male sex, (%) | 41 (51.3) | 13 (68.4) | 28 (45.9) | 0.09 | | BMI (kg/m2), median (IQR) | 29.0 (24.0, 36.8) | 31.2 (23.3, 38.5) | 29.0 (24.0, 36.8) | 0.874 | | Smoking, (%) | 8 (10.0) | 3 (15.8) | 5 (8.2) | 0.335 | | Comorbidities, (%) | | | | | | Diabetes | 47 (58.8) | 10 (52.6) | 37 (60.7) | 0.535 | | Hypertension | 52 (65.0) | 12 (63.2) | 40 (56.6) | 0.847 | | Hypothyroidism | 13 (16.3) | 2 (10.5) | 11 (18.0) | 0.439 | | Heart failure | 31 (38.8) | 5 (26.3) | 26 (42.6) | 0.203 | | Stroke | 12 (15.0) | 2 (10.5) | 10 (16.4) | 0.532 | | Chronic kidney disease | 19 (23.8) | 5 (26.3) | 14 (23.0) | 0.763 | | Dialysis | 5 (6.3) | 2 (10.5) | 3 (4.9) | 0.378 | | Intermittent dialysis | 21 (26.3) | 3 (15.8) | 18 (29.5) | 0.235 | | Dyslipidemia | 28 (35.0) | 5 (26.3) | 23 (37.7) | 0.363 | | Chronic respiratory disease | 42 (52.5) | 9 (47.4) | 33 (54.1) | 0.608 | | Liver disease | 5 (6.3) | 1 (5.3) | 4 (6.6) | 0.839 | | Immunosuppression | 14 (17.5) | 4 (21.1) | 10 (16.4) | 0.641 | | Malignancy | 4 (5.0) | 3 (15.8) | 1 (1.6) | 0.013 | | Transplant | 8 (10.0) | 1 (5.3) | 7 (11.5) | 0.431 | | Bedbound, (%) | 16 (20.0) | 4 (21.1) | 12 (19.7) | 0.895 | | Presenting symptoms, (%) | | | | | | Fever | 38 (47.5) | 7 (36.8) | 31 (50.8) | 0.287 | | /min | 26 (32.5) | 9 (47.4) | 17 (27.9) | 0.113 | | mmHg | 9 (11.3) | 5 (26.3) | 4 (6.6) | 0.017 | | or >39.9°C | 12 (15.0) | 3 (15.8) | 9 (14.8) | 0.912 | | /min | 17 (21.3) | 6 (31.6) | 11 (18.0) | 0.208 | | mmol/L | 29 (36.3) | 7 (36.8) | 22 (36.1) | 0.951 | | Dyspnea | 71 (88.8) | 16 (84.2) | 55 (90.2) | 0.473 | | Dry cough | 19 (23.8) | 5 (26.3) | 14 (23.0) | 0.763 | | Purulent cough | 58 (72.5) | 12 (63.2) | 46 (75.4) | 0.296 | | Chest pain | 8 (10.0) | 0 (0.0) | 8 (13.1) | 0.096 | | Myalgia/arthralgia | 16 (20.0) | 4 (21.1) | 12 (19.7) | 0.895 | | Fatigue | 21 (26.3) | 6 (31.6) | 15 (24.6) | 0.545 | | Headache | 6 (7.5) | 3 (15.8) | 3 (4.9) | 0.116 | | Hemoptysis | 5 (6.3) | 1 (5.3) | 4 (6.6) | 0.839 | | Pneumonia severity index, median (IQR) | 120.5 (94.0, 159.5) | 140.0 (97.0, 17.1) | 102.0 (79.0, 145.0) | 0.085 | | Laboratory findings, median (IQR) | | | | | | White blood cell (109/L) | 8.9 (5.8, 12.3) | 7.5 (4.7, 13.5) | 9.1 (6.3, 12.1) | 0.619 | | Neutrophil (%) | 70.9 (58.0, 80.5) | 74.0 (63.4, 86.5) | 69.6 (50.8, 79.8) | 0.068 | | Lymphocyte (%) | 14.8 (8.4, 20.7) | 11.4 (2.8, 19.9) | 14.9 (9.5, 20.9) | 0.239 | | Hematocrit | 0.39 (0.34, 0.44) | 0.38 (0.29, 0.44) | 0.39 (0.34, 0.44) | 0.475 | | PTT (seconds) | 29.5 (26.8, 33.9) | 30.45 (28.3, 33.6) | 28.5 (26.6, 34.0) | 0.253 | | INR | 1.16 (1.05, 1.34) | 1.18 (1.13, 1.27) | 1.15 (1.04, 1.36) | 0.571 | | Sodium (meq/L) | 136.0 (133.0, 139.0) | 136.0 (129.0, 142.0) | 136 (133, 139) | 0.793 | | Lactic acid (mmol/L) | 1.86 (1.26, 3.06) | 2.48 (1.2, 3.0) | 1.78 (1.26, 2.74) | 0.405 | | Creatinine (μmol/L) | 86.5 (64.5, 133.75) | 96.0 (68.0, 163.0) | 82 (63.5, 129.5) | 0.553 | | pH | 7.37 (7.30, 7.41) | 7.37 (7.22, 7.41) | 7.36 (7.33, 7.41) | 0.534 | | PaO2 (mmHg) | 63.1 (52.0, 76.0) | 64.4 (61.4, 81.3) | 62.9 (48.2, 73.4) | 0.333 | | Chest X-ray findings | | | | | | Unilateral infiltrates | 20/74 (27.0) | 1/19 (5.3) | 19/55 (34.5) | 0.015 | | Bilateral infiltrates | 35/74 (47.3) | 17/19 (89.5) | 18/55 (32.7) | <0.001 | | Unilateral pleural effusion | 13/74 (17.6) | 3/19 (15.8) | 10/55 (18.2) | 1.0 | | Bilateral pleural effusion | 17/74 (23.0) | 9/19 (47.4) | 8/55 (14.5) | 0.009 | | Chest computed tomography findings | | | | | | Unilateral infiltrates | 8/26 (30.8) | 1/5 (20.0) | 7/21 (33.3) | 1.0 | | Bilateral infiltrates | 7/26 (26.9) | 2/5 (40.0) | 5/21 (23.8) | 0.588 | | Unilateral pleural effusion | 5/26 (19.2) | 0/5 (0) | 5/21 (23.8) | 0.545 | | Bilateral pleural effusion | 7/26 (26.9) | 2/5 (40.0) | 5/21 (23.8) | 0.588 |
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