Table. Self-reported Cutaneous Reactions After mRNA COVID-19 Vaccination.

Reaction	No. (%) [95% CI]
	Both mRNA vaccines	Pfizer	Moderna
Dose 1 reaction
No.	40 640	10 445	30 195
Cutaneous reactiona	776 (1.9) [1.78-2.05]	150 (1.4) [1.22-1.68]	626 (2.1) [1.92-2.24]
Itching or rashb	599 (1.5) [1.36-1.60]	128 (1.2) [1.02-1.46]	471 (1.6) [1.42-1.71]
Hives/urticaria	162 (0.4) [0.34-0.46]	25 (0.2) [0.15-0.35]	137 (0.5) [0.38-0.54]
Swelling/angioedema	120 (0.3) [0.24-0.35]	16 (0.2) [0.09-0.25]	104 (0.3) [0.28-0.42]
Recurrent dose 2 reaction
No.	609	124	485
Cutaneous reactiona	101 (17) [13.7-19.8]	20 (16) [10.14-23.81]	81 (17) [13.49-20.32]
Itching or rashb	81 (13) [10.7-16.3]	17 (14) [8.19-21.04]	64 (13) [10.31-16.54]
Hives/urticaria	20 (3.3) [2.02-5.03]	3 (2.4) [0.50-6.91]	17 (3.5) [2.05-5.55]
Swelling/angioedema	16 (2.6) [1.51-4.23]	3 (2.4) [0.50-6.91]	13 (2.7) [1.43-4.54]
New dose 2 reaction
No.	33 939	9055	24 884
Cutaneous reactiona	765 (2.3) [2.10-2.42]	128 (1.4) [1.18-1.68]	637 (2.6) [2.37-2.76]
Itching or rashb	546 (1.6) [1.48-1.75]	100 (1.1) [0.90-1.34]	446 (1.8) [1.63-1.96]
Hives/urticaria	194 (0.6) [0.49-0.66]	27 (0.3) [0.20-0.43]	167 (0.7) [0.57-0.78]
Swelling/angioedema	125 (0.4) [0.31-0.44]	15 (0.2) [0.09-0.27]	110 (0.4) [0.36-0.53]

Abbreviation: mRNA, messenger RNA.

^aNumbers do not sum to the total, as individual employees can report multiple cutaneous reactions.

^bOther than at injection site.