Fig. 2From: The effects of different lookback periods on the sociodemographic structure of the study population and on the estimation of incidence rates: analyses with German claims dataStructure of the subpopulation with one (CON1, upper panel), three (CON3, middle panel) or five (CON5, lower panel) years of continuous insurance (light green), stratified by age groups, after matching to the insured individuals without the respective precondition (striped)Back to article page