Appendix 2—table 4. Estimates of imprinting protection for models with different age groups.

Age groups (years)	Best-fitting model	H1 imprinting protection (%, 95% CI)	H3 imprinting protection (%, 95% CI)
0–4, 5–17, 18–64, 65+	Demography, age, HA imprinting, age-specific VE	56 (40, 68)	36 (25, 46)
0–8, 9–17, 18–49, 50–64, 65+	Demography, age, HA imprinting, age-specific VE	62 (47, 74)	35 (21, 48)