Table 1. Clinical characteristics, laboratory tests, signs and symptoms, and comorbidities.
| Total (N = 280) | Survivors (N = 192) | Non-survivors (N = 88) | p-value | |
|---|---|---|---|---|
| Clinical characteristics | ||||
| Sex (M/F) % | 54/46 | 55/45 | 53/47 | - |
| Age (years) | 62.42 (1.45) | 58.54 (1.22) | 70.87 (1.64) | <0.001* |
| RR (rpm) | 23.07 (0.52) | 22.51 (0.70) | 24.29 (0.93) | 0.150 |
| HR (bpm) | 86.48 (1.08) | 87.82 (1.25) | 83.56 (2.21) | 0.094 |
| SBP (mmHg) | 132.7 (1.61) | 134.78 (1.97) | 128.18 (3.03) | 0.068 |
| SpO2 (%) | 93 (0.37) | 95 (0.27) | 91 (0.94) | <0.001* |
| Laboratory tests | ||||
| Hemoglobin (g/dL) | 12.68 (0.12) | 12.83 (0.14) | 12.36 (0.23) | 0.077 |
| Leukocytes (mm3) | 11.47 (0.36) | 10.30 (0.40) | 14.03 (0.69) | <0.001* |
| Platelets (mm3) | 269.4 (6.86) | 276 (8.57) | 255 (11.87) | 0.168 |
| Creatinine (mg/dL) | 1.46 (0.14) | 1.32 (0.17) | 1.76 (0.21) | 0.127 |
| Urea (mg/dL) | 58.32 (46.47) | 44.52 (2.43) | 85.28 (6.51) | <0.001* |
| Signs and Symptoms† | ||||
| Days to hospitalization (days) | 8.40 (0.30) | 8.79 (0.37) | 7.55 (0.50) | 0.057* |
| Dyspnea (%) | 82 | 77 | 92 | 0.003 |
| Cough (%) | 59 | 60 | 58 | 0.925 |
| Fever (%) | 57 | 58 | 56 | 0.838 |
| Muscular pain (%) | 22 | 25 | 16 | 0.102 |
| Headache (%) | 15 | 15 | 14 | 0.800 |
| Ageusia (%) | 6 | 7 | 6 | 0.934 |
| Anosmia (%) | 11 | 15 | 5 | 0.019* |
| Runny nose (%) | 2 | 3 | 2 | 0.991 |
| Sore throat (%) | 2 | 3 | 3 | 0.991 |
| Asthenia (%) | 10 | 12 | 6 | 0.126 |
| Joint pain (%) | 1 | 1 | 1 | 0.579 |
| Nausea and/or vomit (%) | 6 | 8 | 5 | 0.543 |
| Fatigue (%) | 2 | 4 | 1 | 0.433 |
| Comorbidities†† | ||||
| Number of comorbidities | 1.40 (0.67) | 1.28 (0.07) | 1.66 (0.12) | 0.007* |
| SAH (%) | 53 | 55 | 53 | 0.787 |
| Diabetes (%) | 67 | 30 | 39 | 0.178 |
| Obesity (%) | 24 | 23 | 27 | 0.522 |
| COPD (%) | 3 | 3 | 5 | 0.489 |
| Others cardiopaties (%) | 10 | 6 | 17 | 0.005 |
| CKD (%) | 4 | 4 | 5 | 0.977 |
| Athsma (%) | 2 | 3 | 2 | 0.804 |
| Clinical Evolution | ||||
| Hospital LOS (days) | 6.02 (0.40) | 5 (0.95) | 8.81 (0.92) | <0.001* |
| IMV duration (days) | 1.74 (0.38) | 0.53 (0.33) | 4.38 (0.65) | <0.001* |
M: Male, F: Female, RR: Respiratory rate, HR: Heart rate, SBP: Systolic blood pressure, SpO2: Peripheral oxygen saturation, SAH: Systemic arterial hypertension, CKD: Chronic kidney disease, IMV: Invasive mechanical ventilation, LOS: Length of stay, COPD: Chronic obstructive pulmonary disease, rpm: Respiration per minute, bpm: Beats per minute, mmHg: Millimeters of mercury, %: Percentage, g: Grams, mg: Milligrams, dL: Deciliters, mm: Millimeters. Data presented as mean and standard error.
*Comparison between groups using Chi2 test (categorical variables) or unpaired t-test (numerical variables).
†Proportions represent the number of people who presented that signs or symptoms.
††Proportions represent the number of people who had that comorbidity.