Fig. 3

a Recalled congenital heart disease prevalence per 1000 as a function of age, stratified by year of birth. b Recalled prevalence per 1000 at birth (solid red), for 1–4 year olds (dashed green), and for 5–19 year olds (dotted purple) as a function of time, based on data from the National Health Interview Survey (circle and square markers)