Table 5.
Prevalence of general side effects after the second dose Sinopharm COVID-19 vaccination among 2 groups of participants (≤49 years old vs >49 years old) (n 1080)
| Side effect | ≤49 years (844) n (%) | >49 years (236) n (%) | Total (1080) n (%) | P-value |
|---|---|---|---|---|
| Normal pain at the vaccination site | 272 (32.2) | 80 (33.8) | 352 (32.6) | 0.646 |
| Severe pain at the vaccination site | 56 (6.6) | 32 (13.6) | 88 (8.15) | 0.088 |
| Tenderness | 72 (8.5) | 36 (15.3) | 108 (10) | 0.131 |
| Redness | 16 (2) | 0 | 16 (1.5) | 0.285 |
| Induration and pruritus at the vaccination site | 8 (0.95) | 4 (1.7) | 12 (1.1) | 0.631 |
| Fever | 16 (2) | 16 (6.8) | 32 (3) | .051 |
| Headache | 92 (11) | 16 (6.8) | 108 (10) | 0.346 |
| Fatigue | 108 (13) | 68 (28.8) | 176 (16.3) | 0.003* |
| Nausea | 8 (0.95) | 4 (1.7) | 12 (1.1) | 0.631 |
| Diarrhea | 8 (0.95) | 0 | 8 (0.7) | 0.452 |
| Cough | 4 (0.5) | 4 (1.7) | 8 (0.7) | 0.336 |
| Allergy | 0 | 0 | 0 | - |
| Muscle pain | 40 (4.7) | 24 (10) | 64 (5.9) | 0.121 |
| Abdominal pain | 12 (1.4) | 4 (1.7) | 16 (1.5) | 0.881 |
| Back pain | 20 (2.4) | 12 (5.1) | 32 (3) | 0.28 |
| Lethargy | 104 (12.3) | 44 (18.6) | 148 (13.7) | 0.217 |
| Others | 8 (0.95) | 0 | 8 (0.7) | 0.595 |
| None | 128 (15) | 24 (10) | 152 (14) | 0.323 |