Table 6.

Meta-analyses relating atrial fibrillation to dementia and cognitive impairment

Author	Study design	Outcome	Inclusions/exclusions	Risk
Kwok et al.24	Meta-analysis cross-sectional and prospective studies	Dementia	Patients with H/o stroke, 7 studies; n = 2425	OR 2.43; 95% CI 1.70–3.46; P < 0.001; I2 = 10%
Kalantarian et al.25	Meta-analysis cross-sectional and prospective studies	Cognitive impairment and dementia	Patients with H/o stroke, 7 studies; n = 2409	RR 2.70; 95% CI 1.82–4.00; I2 = 32.3%; P = 0.18
			Excluding patients with or adjusting for H/o stroke 10 studies	RR 1.34; 95% CI 1.13–1.5

H/o, history of; OR, odds ratio; RR, relative risk.