Table 4 Association between SARS-CoV-2 variants of concern (Delta or Omicron) type and the occurrence of different respiratory symptoms in Iranian healthcare workers that were tested positive for SARS-CoV-2 infection (p < 0.05)
Symptoms | Delta Wave (N = 1014) | Omicron Wave (N = 1709) | P Value |
|---|---|---|---|
Fever | 179 (17.7%) | 428 (25%) | 0.000 |
Cough | 248 (24.5%) | 562 (32.9%) | 0.000 |
Sore throat | 263 (25.9%) | 808 (47.3%) | 0.000 |
Runny nose | 130 (12.8%) | 633 (37%) | 0.000 |
Shortness of breath | 95 (9.4%) | 141 (8.3%) | 0.316 |
ARDS | 1 (0.1%) | 3 (0.2%) | 0.523 |
Severe pneumonia | 0 | 1 (0.1%) | 0.628 |
Mild pneumonia | 1 (0.1%) | 2 (0.1%) | 0.687 |
Nausea | 51 (5%) | 99 (5.8%) | 0.399 |
Diarrhea | 66 (6.5%) | 91 (5.3%) | 0.200 |
Abdominal pain | 36 (3.6%) | 46 (2.7%) | 0.205 |
Chest pain | 29 (2.9%) | 47 (2.8%) | 0.866 |
Headache | 204 (20.1%) | 768 (44.9%) | 0.000 |
Dizziness | 31 (3.1%) | 99 (5.8%) | 0.001 |
Myalgia | 101 (10%) | 192 (11.2%) | 0.300 |
Fatigue | 303 (29.9%) | 700 (41%) | 0.000 |
General weakness of the body | 156 (15.4%) | 333 (19.5%) | 0.007 |