Figure legends
Figure 1. Flow chart of search result
Figure 2. Risk of dementia of patients with atrial fibrillation receiving oral anticoagulant (OAC) and non-OAC (A); risk of dementia of patients with atrial fibrillation receiving vitamin K antagonists and non-OAC (B). RR: risk ration; CI: confidence interval; OAC: oral anticoagulant; VKA: vitamin K antagonists
Supplementary Figure S1. The subgroup analysis with prospective and retrospective study. RR: risk ration; CI: confidence interval; OAC: oral anticoagulant
Supplementary Figure S2. The subgroup analysis with and without observational window. RR: risk ration; CI: confidence interval; OAC: oral anticoagulant
Supplementary Figure S3. The funnel plot showing a relative symmetry of publication bias. rr: risk ration