Table 2.
Clinical Characteristics of the Patients
| Characteristics | Total N = 613 | Hospitalized n = 324 | Nonhospitalized n = 289 | P |
|---|---|---|---|---|
| Comorbidity | ||||
| Any condition | 506 (82.5%) | 278 (85.8%) | 228 (78.9%) | 0.024 |
| More than one condition | 212 (34.6%) | 131 (40.4%) | 81 (28.0%) | 0.001 |
| Flu vaccination | ||||
| Yes | 83 (13.5%) | 40 (12.3%) | 43 (14.9%) | 0.537 |
| No | 439 (71.6%) | 238 (73.5%) | 201 (69.6%) | |
| Not sure | 91 (14.8%) | 46 (14.2%) | 45 (15.6%) | |
| Hospital admission within the past year | ||||
| Yes | 137 (22.3%) | 91 (28.1%) | 46 (15.9%) | <0.001 |
| No | 476 (77.7%) | 233 (71.9%) | 243 (84.1%) | |
| Symptoms | ||||
| Fever | 426 (69.5%) | 242 (74.7%) | 184 (63.7%) | 0.005 |
| Cough | 348 (56.8%) | 205 (63.3%) | 143 (49.5%) | 0.002 |
| Sore throat | 232 (37.8%) | 124 (38.3%) | 108 (37.4%) | 0.518 |
| Runny nose | 120 (19.6%) | 61 (18.8%) | 59 (20.4%) | 0.450 |
| Shortness of breath | 269 (43.9%) | 176 (54.3%) | 93 (32.2%) | <0.001 |
| Vomiting | 96 (15.7%) | 64 (19.8%) | 32 (11.1%) | 0.012 |
| Nausea | 146 (23.8%) | 88 (27.2%) | 58 (20.1%) | 0.065 |
| Dizziness | 189 (30.8%) | 123 (38.0%) | 66 (22.8%) | <0.001 |
| Headache | 211 (34.4%) | 103 (31.8%) | 108 (37.4%) | 0.147 |
| Loss of smell or taste | 272 (44.4%) | 137 (42.3%) | 135 (46.7%) | 0.007 |
| Change in taste | 28 (4.6%) | 14 (4.3%) | 14 (4.8%) | 0.757 |
| Mouth ulcers | 6 (1.0%) | 1 (0.3%) | 5 (1.7%) | 0.105 |
| Diarrhea | 205 (33.4%) | 121 (37.3%) | 84 (29.1%) | 0.056 |
| Tiredness or general fatigue | 478 (78.0%) | 276 (85.2%) | 202 (69.9%) | <0.001 |
| Weight loss | 145 (23.7%) | 83 (25.6%) | 62 (21.5%) | 0.226 |
| Weight gain | 5 (0.8%) | 3 (0.9%) | 2 (0.7%) | >0.999 |
| Eye redness/itching | 21 (3.4%) | 9 (2.8%) | 12 (4.2%) | 0.350 |
| Back pain | 101 (16.5%) | 52 (16.0%) | 49 (17.0%) | 0.763 |
| Leg pain | 71 (11.6%) | 39 (12.0%) | 32 (11.1%) | 0.710 |
| Joint pain | 158 (25.8%) | 79 (24.4%) | 79 (27.3%) | 0.404 |
| Abdominal pain | 50 (8.2%) | 31 (9.6%) | 19 (6.6%) | 0.176 |
| Muscle spasms | 2 (0.3%) | 2 (0.6%) | – | 0.501 |
| Swollen ankles or feet | 3 (0.5%) | 1 (0.3%) | 2 (0.7%) | 0.604 |
| Chills | 15 (2.4%) | 10 (3.1%) | 5 (1.7%) | 0.278 |
| Loss of appetite | 279 (45.5%) | 172 (53.1%) | 107 (37.0%) | <0.001 |
| Hemoptysis | 2 (0.3%) | 2 (0.6%) | – | 0.501 |
| Altered smell of urine | 3 (0.5%) | 2 (0.6%) | 1 (0.3%) | >0.999 |
| Dark urine discoloration | 4 (0.7%) | 2 (0.6%) | 2 (0.7%) | >0.999 |
| Difficulty urinating | 12 (2.0%) | 7 (2.2%) | 5 (1.7%) | 0.701 |
| Fainting | 5 (0.8%) | 4 (1.2%) | 1 (0.3%) | 0.377 |
| Itching | 5 (0.8%) | 2 (0.6%) | 3 (1.0%) | 0.671 |
| Rash | 3 (0.5%) | 1 (0.3%) | 2 (0.6%) | 0.604 |
| Skin ulcers | 2 (0.3%) | 2 (0.6%) | – | 0.501 |
| Numbness or tingling | 20 (3.3%) | 10 (3.1%) | 10 (3.5%) | 0.795 |
| Presence of symptoms | ||||
| Asymptomatic | 50 (8.2%) | 17 (5.2%) | 33 (11.4%) | 0.005 |
| Symptomatic | 563 (91.8%) | 307 (94.8%) | 256 (88.6%) | |