Table 2 Symptoms and CT value alteration during quarantine
Variables | Initial occurrence (n [% of participants]) | After quarantine occurrence (n [% of participants]) | χ2 | p value |
|---|---|---|---|---|
Symptom | ||||
 Sore throat | 384 (40.2%) | 12 (1.3%) | 440.9 |  < 0.0001 |
 Cough | 547 (57.3%) | 83 (8.7%) | 509.9 |  < 0.0001 |
 Dry mouth or throat | 228 (23.9%) | 30 (3.1%) | 175.7 |  < 0.0001 |
 Fever | 659 (69.0%) | 3 (0.3%) | 994.9 |  < 0.0001 |
 Running nose | 218 (22.8%) | 10 (1.0%) | 215.5 |  < 0.0001 |
 Yellow phlegm | 148 (15.5%) | 3 (0.3%) | 151.2 |  < 0.0001 |
 White phlegm | 145 (15.2%) | 27 (2.8%) | 89.0 |  < 0.0001 |
 Myalgia | 226 (23.7%) | 8 (0.8%) | 231.5 |  < 0.0001 |
 Fatigue | 213 (22.3%) | 43 (4.5%) | 130.4 |  < 0.0001 |
 Diarrhea | 174 (18.2%) | 15 (1.6%) | 148.5 |  < 0.0001 |
 Constipation | 41 (4.3%) | 7 (0.7%) | 24.7 |  < 0.0001 |
 Chest tightness | 52 (5.4%) | 15 (1.6%) | 21.2 |  < 0.0001 |
 Shortness of breath | 59 (6.2%) | 28 (2.9%) | 11.6 |  < 0.001 |
 Palpitation | 32 (3.4%) | 5 (0.5%) | 20.1 |  < 0.0001 |
 Insomnia | 93 (9.7%) | 23 (2.4%) | 45.0 |  < 0.0001 |
 Nausea or vomit | 37 (3.9%) | 1 (0.1%) | 34.8 |  < 0.0001 |
 Dizziness | 102 (10.7%) | 10 (1.0%) | 80.3 |  < 0.0001 |
 Headache | 260 (27.2%) | 15 (1.6%) | 255.0 |  < 0.0001 |
 Abdominal pain | 31 (3.2%) | 4 (0.4%) | 21.2 |  < 0.0001 |
 Change sense of smell and taste | 93 (9.7%) | 14 (1.5%) | 61.8 |  < 0.0001 |
 Duration of quarantine (median (IQR)) | 21.0 (18.0, 25.0) | |||
 Negative CT value | 29 (2.9%) | 595 (60.9%) | 774.6 |  < 0.0001 |