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. 2021 Sep 28;86(1):248–249. doi: 10.1016/j.jaad.2021.09.044

Table I.

Comparison among Pfizer/BioNTech BNT162b2 messenger RNA COVID-19 vaccine, Moderna messenger RNA-1273 SARS-CoV-2 vaccine, hepatitis B virus vaccine, and seasonal influenza vaccine

Vaccines
P vaccine
M vaccine
HBV vaccine
Flu vaccine
Vaccine comparison
14,649
10,403
58,063
152,627
P-M P-HBV P-Flu M-HBV M-Flu
Total number of patients reporting SE Number of reported SE (%) Number of reported SE (%) Number of reported SE (%) Number of reported SE (%)
Constitutional SE
 Headache 2932 (20.02) 2242 (21.55) 3641 (6.27) 11,594 (7.60) .003 <.001 <.001 <.001 <.001
 Fatigue 2188 (14.94) 1537 (14.77) 1124 (1.94) 6305 (4.13) .736 <.001 <.001 <.001 <.001
 Pyrexia 2003 (13.67) 1853 (17.81) 9473 (16.32) 19,880 (13.03) <.001 <.001 .027 <.001 <.001
 Chills 1985 (13.55) 1763 (16.95) 1291 (2.22) 9890 (6.48) <.001 <.001 <.001 <.001 <.001
 Pain 1853 (12.65) 1622 (15.59) 3335 (5.74) 18,395 (12.05) <.001 <.001 .035 <.001 <.001
 Nausea 1794 (12.25) 1458 (14.02) 3602 (6.20) 9141 (5.99) <.001 <.001 <.001 <.001 <.001
 Myalgia 940 (6.42) 721 (6.93) 2669 (4.60) 7004 (4.59) .113 <.001 <.001 <.001 <.001
 Arthralgia 754 (5.15) 593 (5.70) 2363 (4.07) 4477 (2.93) .059 <.001 <.001 <.001 <.001
 Malaise 659 (4.50) 290 (2.79) 1683 (2.90) 5246 (3.44) <.001 <.001 <.001 .554 <.001
 Asthenia 621 (4.24) 433 (4.16) 2645 (4.56) 6407 (4.20) .789 .103 .828 .079 .881
Dermatologic SE
 Pruritus 785 (5.36) 678 (6.52) 3651 (6.29) 9197 (6.03) <.001 <.001 .001 .388 .044
 Rash 779 (5.32) 528 (5.08) 4954 (8.53) 8305 (5.44) .411 <.001 .540 <.001 .115
 Urticaria 571 (3.90) 403 (3.87) 3715 (6.40) 8424 (5.52) .949 <.001 <.001 <.001 <.001
 Hyperhidrosis 474 (3.24) 314 (3.02) 1190 (2.05) 3225 (2.11) .350 <.001 <.001 <.001 <.001
 Erythema 416 (2.84) 498 (4.79) 1388 (2.39) 12,426 (8.14) <.001 .001 <.001 <.001 <.001
Injection Site Pain 1192 (8.14) 1269 (12.20) 3102 (5.34) 18,140 (11.89) <.001 <.001 <.001 <.001 .347
Injection site erythema 323 (2.20) 1104 (10.61) 2175 (3.75) 17,523 (11.48) <.001 <.001 <.001 <.001 .007
Injection site swelling 291 (1.99) 839 (8.06) 1358 (2.34) 12,759 (8.36) <.001 .011 <.001 <.001 .301
Injection site warmth 153 (1.04) 576 (5.54) 802 (1.38) 7831 (5.13) <.001 .001 <.001 <.001 .073

Values in bold are values that are statistically significant (P value <.05). Cutoff value for statistical significance ≤.05.

Flu, Seasonal influenza vaccine; HBV, hepatitis B virus vaccine; M, Moderna messenger RNA-1273 SARS-CoV-2 vaccine; P, Pfizer/BioNTech BNT162b2 messenger RNA COVID-19 vaccine; SE, side effect.