Table 7.

Interrater agreement for self-reported vaccination status at emergency department index visit date versus the Québec Vaccination Registry for participants whose emergency department index visit occurred between March 24, 2020, and December 25, 2021 (n=587).^a

Self-reported vaccination status determined using the date of latest vaccination dose in relation to the EDb visit datec	Québec Vaccination Registry vaccination status determined in relation to the ED index visit dated, n
	Not vaccinated	Partially vaccinated	Fully vaccinated
Not vaccinated	527	5	6
Partially vaccinated	<5	29	0
Fully vaccinated	0	0	16

^aCohen κ: 0.85 (95% CI 0.77-0.92).

^bED: emergency department.

^cCategories of vaccination status at the time of ED index visit (fully, partially, and not vaccinated) for this analysis are defined in Multimedia Appendix 1.

^dA total of 774 (56.9%) participants were excluded from this analysis because they could not recall the date of their last dose.