Differences in adverse reactions after the second SARS-CoV-2 vaccine (BNT162b2, Pfizer/BioNTech) according to sex
| Adverse reactions after the 2nd Pfizer vaccination | Male (n=42) | Female (n=97) | P-value |
|---|---|---|---|
| Onset time | 2.33±1.52 | 2.55±1.30 | 0.924 |
| Duration | 3.00±2.10 | 4.14±2.23 | 0.015 |
| Pain | 0.90±0.72 | 1.42±0.84 | <0.001 |
| Tenderness | 0.74±0.76 | 1.55±0.94 | <0.001 |
| Erythema/redness | 0.12±0.32 | 0.25±0.61 | 0.413 |
| Induration/swelling | 0.12±0.39 | 0.37±0.66 | 0.022 |
| Nauea/vomiting | 0.12±0.45 | 0.40±0.71 | 0.008 |
| Diarrhea | 0.05±0.21 | 0.19±0.56 | 0.162 |
| Headache | 0.66±0.85 | 0.89±0.98 | 0.112 |
| Fatigue | 0.74±1.09 | 1.36±1.15 | 0.003 |
| Myalgia | 0.90±1.16 | 1.56±1.13 | 0.003 |
| Allergy | 0.02±0.15 | 0.27±0.70 | 0.014 |
| Fever | 0.17±0.53 | 0.40±0.68 | 0.019 |
| Other reactions | 0.24±0.75 | 0.65±1.16 | 0.025 |
Values are presented as mean±standard deviation.
P-value by Mann-whitney U test.