Table 4.
Baseline characteristics on admission
| A. Demographics | ||
|---|---|---|
| Characteristics | N | % |
| Men | 91 | 67.9 |
| Age in years, median | 55.6 years | (Range 20–89 years) |
| B. Coexisting conditions | ||
|---|---|---|
| Comorbidity | N | % |
| Diabetes mellitus | 59 | 44 |
| Hypertension | 62 | 46 |
| Ischemic heart disease | 19 | 19 |
| Obesity | 16 | 16 |
| Chronic obstructive lung disease/interstitial lung disease | 9 | 9 |
| Chronic kidney disease | 4 | 4 |
| Cancer | 1 | 1 |
| C. Laboratory | ||
|---|---|---|
| Parameters | N | Median |
| White blood cell count/mm3 | 132 | 7420 (4945–10,810) |
| Creatinine in mg% | 130 | 0.99 ( 0.78–1.58) |
| Nucleotide oligomerization domain (NOD)-like receptor (NLR) | 134 | 5.93 (3.2–9.8) |
| IL-6 pg/mL | 24 | 62.8 (18.5–100.5) |
| C-reactive protein mg/L | 105 | 118 (56.3–181) |
| Ferritin ng/mL | 57 | 384.4 (135.4–936.4) |
| D-dimer ng/mL | 70 | 1015.3 (524.5–1527.2) |
| D. Chest X-ray (n = 133)* | ||
|---|---|---|
| Finding | N | % |
| Normal | 19 | |
| Zone 1–4 | 104 | 78.2 |
| Zone 1–4, lobar pneumonia | 10 | 7 |
| E. USG Chest (n = 46) | ||
|---|---|---|
| Normal | 5 | 10.9 |
| B lines | 29 | 63 |
| B lines + subpleural consolidation | 11 | 23.9 |
| Subpleural consolidation | 1 | 2.2 |
| F. Proportion of patients with P/F ratios (n = 116) | ||
|---|---|---|
| P/F ratio category | Patients on admission n (%) | Patients with worst P/F ratio n (%) |
| ≤300 (mild) | 42 (31.3) | 30 (22.4) |
| ≤200 (moderate) | 36 (26.9) | 22 (16.4) |
| ≤100 (severe) | 18 (13.4) | 48 (35.8) |
| ≥300 (normal) | 20 (14.9) | 16 (11.9) |
| G. Respiratory assist devices used within 72 hours of admission | ||
|---|---|---|
| Respiratory assist device | n | (%) |
| Nasal prongs | 58 | 43.3 |
| O2 mask | 15 | 11.2 |
| Nonrebreathing mask | 40 | 29.8 |
| High-flow nasal oxygen | 15 | 11.2 |
| Invasive mechanical ventilation | 6 | 4.5 |
*
Zones on chest X-ray: Zone 1, apical zone-above the clavicle; Zone 2, between the clavicle and cardiac silhouette; Zone 3, midzone: level of hilar structures; Zone 4, bases