Table 1 An overview of clinical data in inpatients with pneumonia (n = 38,870)
Variable | Value, n (%) or median (Q25, Q75) |
|---|---|
Department | Â |
 Respiratory medicine | 31,219 (80) |
 Other internal medicine | 5731 (15) |
 Surgery | 1920 (5) |
Sex | Â |
 Female | 11,846 (30) |
 Male | 27,024 (70) |
Age (year) | 64 (53, 73) |
BMIÂ (kg/m2) | 21.6 (19.0, 24.2) |
Smoking history | Â |
 Never smoker | 25,254 (65) |
 Ever smoker | 6797 (17) |
 Current smoker | 6819 (18) |
Glucocorticoid use during hospitalization | Â |
 No | 22,442 (58) |
 Yes | 16,428 (42) |
Immunosuppressant use during hospitalization | Â |
 No | 19,799 (51) |
 Yes | 19,071 (49) |
Cost (yuan) | 19,107.2 (12,127.0, 34,275.0) |
Length of stay (day) | 7.9 (5.1, 12.8) |
ICU admission | Â |
 No | 36,511 (94) |
 Yes | 2359 (6) |
Receiving mechanical ventilation during hospital | Â |
 No | 25,267 (65) |
 Yes | 13,603 (35) |
Discharge outcome | Â |
 Unknown | 4786 (12) |
 Improved | 31,833 (82) |
 Worsen | 950 (2) |
 Dead | 1301 (3) |
Pulmonary fungal infection | Â |
 No | 33,526 (86) |
 Yes | 5344 (14) |
Viral pneumonia | Â |
 No | 38,412 (99) |
 Yes | 458 (1) |
Albumin (g/L) | 35.0 (31.3, 38.2) |
White blood cell (*109/L) | 8.1 (6.1, 11.0) |
Erythrocyte sedimentation rate (mm/h) | 46 (20, 85) |
Hypersensitive C-reactive protein (mg/L) | 20.5 (3.32, 71.2) |
Procalcitonin | Â |
 Normal | 10,828 (48) |
 Elevated | 11,758 (52) |
 Missing | 16,284 |