Figure 2From: The Québec BCG Vaccination Registry (1956–1992): assessing data quality and linkage with administrative health databases Proportion of successful linkage by birth year. Line connecting circular points represents the proportion of successful linkage between the electronic BCG Registry and the Birth Registry using a probabilistic record linkage. Line connecting square-shaped points represents the proportion of successful linkage between the electronic BCG Registry and the Healthcare Registration File using a deterministic record linkage. Bars represent the proportion of missing given names.Back to article page