The risk of dementia in patients with inflammatory bowel disease: a systematic review and meta-analysis

International Journal of Colorectal Disease(2022)

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摘要
Background Growing evidence indicates that inflammatory bowel disease (IBD) and dementia share similar pathological mechanisms, but no consensus has yet emerged on the effect that IBD and dementia are associated. To explore such a possible correlation, we summarize herein the epidemiological evidence. We subject relevant studies to meta-analysis. Methods We comprehensively searched Pubmed and Embase for relevant articles published to Dec 2021. The pooled risk ratio (RR) with the 95% confidence interval (CI) was used to estimate the effect; we calculated the generic inverse variance using a random-effects model. Results Seven studies involving 65,454 patients with dementia were included in the meta-analysis. The overall risk of dementia in IBD patients was significantly higher than that in the general population (risk ratio [RR], 1.35; 95% confidence interval [CI], 1.08–1.68; P = 0.008). The results of subgroup analyses were consistent with the overall results. The risk of Alzheimer’s disease was higher in IBD patients (RR = 2.79, 95% CI = 1.1, 7.04; P < 0.001). Conclusions Our results revealed that IBD may be a potential risk indicator for dementia.
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关键词
Colitis,Crohn,Cognitive,Meta-analysis,Risk
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