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Forest plots illustrating subgroup analyses exploring the associations of vitamin D supplementation with incident all-cause dementia (A), Alzheimer’s disease (B), and vascular dementia (C) in 269,229 UK Biobank participants. HRs with 95% CIs were derived from Cox proportional hazards models. APOE, Apolipoprotein E; BMI, body mass index; CI, confidence interval; HR: hazard ratio.
