Table 7.
Association of symptoms and clinical manifestations with IgG positivity.
| Total | Negative (< 12AU/mL) | Positive (≥ 12AU/mL) | ||||||
|---|---|---|---|---|---|---|---|---|
| N | % of total | N | % of level | % of total | N | % of level | % of total | |
| Fever | ||||||||
| No | 3488 | 87.5 | 3179 | 91.1 | 91.8 | 309 | 8.9 | 59.1 |
| Yes | 497 | 12.5 | 283 | 56.9 | 8.2 | 214 | 43.1 | 40.9 |
| Low-grade fever | ||||||||
| No | 3557 | 89.3 | 3149 | 88.5 | 91.0 | 408 | 11.5 | 78.0 |
| Yes | 428 | 10.7 | 313 | 73.1 | 9.0 | 115 | 26.9 | 22.0 |
| Cough | ||||||||
| No | 3074 | 77.1 | 2750 | 89.5 | 79.4 | 324 | 10.5 | 62.0 |
| Yes | 911 | 22.9 | 712 | 78.2 | 20.6 | 199 | 21.8 | 38.0 |
| Sore throat/runny nose | ||||||||
| No | 2687 | 67.4 | 2391 | 89.0 | 69.1 | 296 | 11.0 | 56.6 |
| Yes | 1298 | 32.6 | 1071 | 82.5 | 30.9 | 227 | 17.5 | 43.4 |
| Muscle pain | ||||||||
| No | 2957 | 74.2 | 2707 | 91.5 | 78.2 | 250 | 8.5 | 47.8 |
| Yes | 1028 | 25.8 | 755 | 73.4 | 21.8 | 273 | 26.6 | 52.2 |
| Asthenia | ||||||||
| No | 3237 | 81.2 | 2948 | 91.1 | 85.2 | 289 | 8.9 | 55.3 |
| Yes | 748 | 18.8 | 514 | 68.7 | 14.8 | 234 | 31.3 | 44.7 |
| Anosmia/dysgeusia | ||||||||
| No | 3617 | 90.8 | 3348 | 92.6 | 96.7 | 269 | 7.4 | 51.4 |
| Yes | 368 | 9.2 | 114 | 31.0 | 3.3 | 254 | 69.0 | 48.6 |
| Gastrointestinal symptoms | ||||||||
| No | ||||||||
| Yes | 820 | 20.6 | 650 | 79.3 | 18.8 | 170 | 20.7 | 32.5 |
| Conjunctivitis | ||||||||
| No | 3583 | 89.9 | 3145 | 87.8 | 90.8 | 438 | 12.2 | 83.7 |
| Yes | 402 | 10.1 | 317 | 78.9 | 9.2 | 85 | 21.1 | 16.3 |
| Dyspnea | ||||||||
| No | 3726 | 93.5 | 3291 | 88.3 | 95.1 | 435 | 11.7 | 83.2 |
| Yes | 259 | 6.5 | 171 | 66.0 | 4.9 | 88 | 34.0 | 16.8 |
| Chest pain | ||||||||
| No | 3664 | 91.9 | 3235 | 88.3 | 93.4 | 429 | 11.7 | 82.0 |
| Yes | 321 | 8.1 | 227 | 70.7 | 6.6 | 94 | 29.3 | 18.0 |
| Tachycardia | ||||||||
| No | 3553 | 89.2 | 3112 | 87.6 | 89.9 | 441 | 12.4 | 84.3 |
| Yes | 432 | 10.8 | 350 | 81.0 | 10.1 | 82 | 19.0 | 15.7 |
| Pneumonia | ||||||||
| No | 3951 | 99.1 | 3457 | 87.5 | 99.9 | 494 | 12.5 | 94.5 |
| Yes | 34 | 0.9 | 5 | 14.7 | 0.1 | 29 | 85.3 | 5.5 |
| Other symptoms | ||||||||
| No | ||||||||
| Yes | 157 | 3.9 | 121 | 77.1 | 3.5 | 36 | 22.9 | 6.9 |
| Number of symptoms and clinical manifestations | ||||||||
| 0 symptoms | 1380 | 34.6 | 1318 | 95.5 | 38.1 | 62 | 4.5 | 11.9 |
| 1 symptoms | 814 | 20.4 | 758 | 93.1 | 21.9 | 56 | 6.9 | 10.7 |
| 2 symptoms | 582 | 14.6 | 517 | 88.8 | 14.9 | 65 | 11.2 | 12.4 |
| 3 symptoms | 411 | 10.3 | 350 | 85.2 | 10.1 | 61 | 14.8 | 11.7 |
| 4 symptoms | 256 | 6.4 | 201 | 78.5 | 5.8 | 55 | 21.5 | 10.5 |
| 5 or more symptoms | 542 | 13.6 | 318 | 58.7 | 9.2 | 224 | 41.3 | 42.8 |
| Fever and anosmia/dysgeusia | ||||||||
| No | 3285 | 82.4 | 3096 | 94.2 | 89.4 | 189 | 5.8 | 36.1 |
| Anosmia/dysgeusia | 203 | 5.1 | 83 | 40.9 | 2.4 | 120 | 59.1 | 22.9 |
| Fever | 332 | 8.3 | 252 | 75.9 | 7.3 | 80 | 24.1 | 15.3 |
| Fever and anosmia/dysgeusia | 165 | 4.1 | 31 | 18.8 | 0.9 | 134 | 81.2 | 25.6 |
| Total | 3985 | 100.0 | 3462 | 86.9 | 100.0 | 523 | 13.1 | 100.0 |