Table 1. Epidemiological and clinical characteristics of COVID-19 patients.
| Characteristic | Control (n=19) | Plasma (n=16) | Overall (n=35) | P-value |
|---|---|---|---|---|
| Mean age, in years | 68.05±13.30 | 59.25±17.56 | 64.03±15.79 | 0.10 |
| Gender | 0.87 | |||
| Male | 10 (52.63) | 8 (50.00) | 18 (51.43) | |
| Female | 9 (47.37) | 8 (50.00) | 17 (48.57) | |
| Ethnicity | 0.42 | |||
| White | 15 (78.94) | 11 (68.75) | 26 (76.28) | |
| Black | 0 (0.00) | 1 (6.25) | 1 (2.85) | |
| Brown | 2 (10.52) | 1 (6.25) | 3 (8.57) | |
| Unknown | 2 (10.52) | 3 (18.75) | 5(20.00) | |
| Exam | 1.00 | |||
| RT-PCR | 3 (15.79) | 2 (12.50) | 5 (14.29) | |
| Serology | 16 (84.21) | 14 (87.50) | 30 (85.71) | |
| Mean days of hospitalization | 1.89±0.88 | 2.00±1.26 | 1.94±1.06 | 0.94 |
| Hospitalization | 0.60 | |||
| 1 day | 8 (42.11) | 8 (50.00) | 16 (45.71) | |
| 2 days | 5 (26.32) | 3 (18.75) | 8 (22.86) | |
| 3 days | 6 (31.58) | 3 (18.75) | 9 (25.71) | |
| 4 days | 0 (0.00) | 1 (6.25) | 1 (2.86) | |
| 5 days | 0 (0.00) | 1 (6.25) | 1 (2.86) | |
| Mean days with signs and symptoms | 4.53±1.43 | 4.88±1.89 | 4.69±1.64 | 0.45 |
| Signs and symptoms | 0.22 | |||
| 2 days | 1 (5.26) | 3 (18.75) | 4 (11.43) | |
| 3 days | 5 (26.32) | 1 (6.25) | 6 (17.14) | |
| 4 days | 3 (15.79) | 3 (18.75) | 6 (17.14) | |
| 5 days | 4 (21.05) | 1 (6.25) | 5 (14.29) | |
| 6 days | 5 (26.32) | 4 (25.00) | 9 (25.71) | |
| 7 days | 1 (5.26) | 4 (25.00) | 5 (14.29) | |
| COVID-19 severity classification | 0.80 | |||
| Mild | 16 (84.21) | 13 (81.25) | 29 (82.86) | |
| Moderate | 3 (15.79) | 2 (12.50) | 5 (14.29) | |
| Severe | 0 (0.00) | 1 (6.25) | 1 (2.86) | |
| Chronic disease | 0.67 | |||
| Yes | 12 (63.16) | 9 (56.25) | 21 (60.00) | |
| No | 7 (36.84) | 7 (43.75) | 14 (40.00) | |
| Hypertension | 0.47 | |||
| Yes | 14 (73.68) | 10 (62.50) | 24 (68.57) | |
| No | 5 (26.32) | 6 (37.50) | 11 (31.43) | |
| Chronic obstructive pulmonary disease | 1.00 | |||
| Yes | 4 (21.05) | 4 (25.00) | 8 (22.86) | |
| No | 15 (78.95) | 12 (75.00) | 27 (77.14) | |
| Autoimmune disease | 0.44 | |||
| Yes | 0 (0.00) | 1 (6.25) | 1 (2.94) | |
| No | 19 (100.00) | 15 (93.75) | 33 (97.06) | |
| Diabetes mellitus | 0.71 | |||
| Yes | 6 (31.58) | 6 (37.50) | 12 (34.29) | |
| No | 13 (68.42) | 10 (62.50) | 23 (65.71) | |
| Vaccinated for COVID-19 | 0.20 | |||
| Yes | 19 (100.00) | 14 (87.50) | 33 (94.29) | |
| No | 0 (0.00) | 2 (12.50) | 2 (5.71) |
Categorical data are reported as number (percentage) and continuous variables as means±SD. P-value calculated by chi-squared, exact chi-squared, or Mann-Whitney tests.