Table 3. The Impact of Blood Type on Reactogenicity With the Second Dose of Vaccine.
1Statistics presented: Mean (SD); 2Statistical tests performed: Kruskal-Wallis test
| Blood Type | |||||||||
| Characteristic | Overall, N = 3,7001 | A, N = 9951 | AB, N = 1481 | B, N = 3691 | O, N = 1,3661 | Unknown, N = 8221 | p-value2 | ||
| Injection site pain | 3.1 (2.84) | 3.1 (2.74) | 2.9 (2.79) | 2.8 (2.79) | 3.2 (2.83) | 3.1 (3.00) | 0.048 | ||
| Injection site redness | 0.7 (1.93) | 0.7 (1.88) | 0.3 (0.96) | 0.7 (1.97) | 0.8 (1.99) | 0.8 (2.01) | 0.3 | ||
| Injection site swelling | 0.8 (2.01) | 0.8 (1.99) | 0.4 (1.17) | 0.7 (2.03) | 0.8 (2.05) | 0.8 (2.06) | 0.2 | ||
| Fatigue | 3.4 (3.49) | 3.5 (3.45) | 3.0 (3.30) | 3.1 (3.46) | 3.5 (3.53) | 3.3 (3.51) | 0.2 | ||
| Headache | 2.2 (3.12) | 2.2 (3.05) | 1.7 (2.71) | 2.0 (3.05) | 2.2 (3.20) | 2.3 (3.14) | 0.3 | ||
| Muscle pain | 2.3 (3.28) | 2.3 (3.24) | 1.7 (2.82) | 2.1 (3.23) | 2.3 (3.31) | 2.2 (3.34) | 0.2 | ||
| Chills | 1.9 (3.20) | 1.9 (3.23) | 1.2 (2.50) | 1.8 (3.24) | 1.9 (3.22) | 1.9 (3.20) | 0.3 | ||
| Joint pain | 1.5 (2.95) | 1.6 (2.98) | 1.2 (2.68) | 1.3 (2.80) | 1.5 (3.00) | 1.5 (2.96) | 0.6 | ||
| Fever | 1.2 (2.64) | 1.2 (2.70) | 0.6 (1.88) | 1.0 (2.43) | 1.2 (2.69) | 1.2 (2.69) | 0.059 | ||
| Nausea | 0.6 (1.93) | 0.6 (1.98) | 0.3 (1.39) | 0.5 (1.63) | 0.6 (1.93) | 0.7 (2.06) | 0.11 | ||
| Vomiting | 0.1 (0.87) | 0.1 (0.94) | 0.1 (0.52) | 0.1 (0.88) | 0.1 (0.83) | 0.1 (0.92) | >0.9 | ||
| Swollen lymph nodes | 0.5 (1.77) | 0.5 (1.85) | 0.3 (1.44) | 0.4 (1.69) | 0.5 (1.85) | 0.4 (1.60) | 0.5 | ||
| Sore throat | 0.3 (1.27) | 0.2 (1.19) | 0.1 (0.66) | 0.3 (1.52) | 0.3 (1.21) | 0.3 (1.42) | 0.2 | ||