Additional file 3 of The association of herpes zoster and influenza vaccinations with the risk of developing dementia: a population-based cohort study within the UK Clinical Practice Research Datalink

Additional file 3. The distribution of the number of matched comparators – by matched set. The file depicted number and percentage of matched comparators.附加文件3。按匹配集划分的匹配对照物（matched comparators）数量分布。该文件呈现了匹配对照物的数量及其占比。