Pfizer COVID19 vaccine is not associated with acute cardiovascular events excluding myocarditis– a national self-controlled case series study

Table 1 Odds ratios and 95%CI for an acute cardiovascular event (excluding myocarditis) by study periods– a multivariable conditional logistic regression model

Variable	Odds ratio (95%CI)	X²	Freedom levels	P value
Study period (risk vs. control)	0.88 (0.72–1.09)	3.9	1	0.48
Sex (females vs. males)	1.03 (0.90–1.18)	0.20	1	0.65
Age group		4.05	3	0.26
0-29y	1.79 (0.84–3.82)
30-59y	1.12 (0.96–1.31)
60-79y	1.00 (ref)
80 + y	1.03 (0.88–1.20)
Previous cardiovascular morbidity (yes vs. no)	0.93 (0.81–1.06)	1.08	1	0.30
Seasonal risk¹	0.88 (0.72–1.07)	1.54	1	0.21

¹Computed as the relative risk for an acute cardiovascular event causing hospitalization for each participant at their designated risk vs. control period, based on the 2019 NHDD data

ISSN: 2045-4015