Table 6. Top five systemic reactions stratified by the three administered vaccines and age.

		Vaccines by age (yr)						Total	p-value
		Pfizer (n=182)		Moderna (n=13)		Janssen (n=5)
		12.55	>55	12.55	>55	12.55	>55
Headache									0.110
	No	74	39	8	3	2	3	129
	Yes	42	27	1	1	0	0	71
	Total	116	66	9	4	2	3	200
Fatiguea)									0.023*
	No	77	30	7	4	1	3	122
	Yes	39	36	2	0	1	0	78
	Total	116	66	9	4	2	3	200
Chills									0.070
	No	74	46	8	4	2	3	137
	Yes	42	20	1	0	0	0	63
	Total	116	66	9	4	2	3	200
Pyrexiab)									0.051
	No	72	53	9	2	2	3	141
	Yes	44	13	0	2	0	0	59
	Total	116	66	9	4	2	3	200
Painc)									0.133
	No	74	47	7	4	2	3	137
	Yes	42	19	2	0	0	0	63
	Total	116	66	9	4	2	3	200

Data extracted from the Vaccine Adverse Event Reporting System database [4].

^*p<0.05 (statistically significant). ^a)Fatigue and asthenia. ^b)Pyrexia and increased body temperature. ^c)Pain, pain in extremity, and myalgia grouped together.