Table 2. Health event^a rate in adults^b and children^b, Canada, 2017/18 and 2018/19 (n = 91,549).

Participant characteristic, type of health event	2017/18				2018/19
	Number reporting a health event	Total	%	95% CI	Number reporting a health event	Total	%	95% CI
Adultsb
Control, health events	235	12,125	1.9	1.7–2.2	381	18,885	2.0	1.8–2.2
Vaccinee, health events	656	25,786	2.5	2.4–2.7	614	22,122	2.8	2.6–3.0
Childrenb
Control, health events	88	1,453	6.1	4.9–7.4	163	3,114	5.2	4.5–6.1
Vaccinee, health events	301	4,387	6.9	6.1–7.6	243	3,677	6.6	5.8–7.5
o      Control, medical consultation and activities prevented/school absenteeism	19	1,453	1.3	0.8–2.0	31	3,114	1.0	0.7–1.4
o      Vaccinee, medical consultation and activities prevented/school absenteeism	80	4,387	1.8	1.4–2.3	67	3,677	1.8	1.4–2.3
o      Control, medical consultation	4	1,453	0.3	0.1–0.7	10	3,114	0.3	0.2–0.6
o      Vaccinee, medical consultation	15	4,387	0.3	0.2–0.6	12	3,677	0.3	0.2–0.6

CI: confidence interval.

^a A health event was defined by the respondent as of sufficient intensity to cause a medical consultation or work/school/day care absenteeism/prevent daily activities, or both.

^b A person is considered as an adult if aged ≥ 15 years; children are aged 6 months–14 years.