Abstract
Background:Recent studies have suggested a renal protective effect of coffee consumption against development of chronic kidney disease (CKD), although the results remain inconclusive. We performed a protocol for systematic review and meta-analysis to comprehensively investigate this association by summarizing all available data.Methods:An all-round retrieval will be performed in 5 electronic journal databases from their inception to June 2021, which comprise Medline, PubMed, Embase, ScienceDirect, and the Cochrane Library. The following key words were used on combination with Boolean operators AND or OR: “coffee,” “caffeine,” “renal insufficiency,” “chronic kidney diseases,” “chronic renal diseases.” Two authors completed the quality assessment using the Newcastle–Ottawa Scale for observational studies. The meta-analysis was conducted using Review Manager 5.3 software from the Cochrane Collaboration (London, UK).Results:The findings of this study will be submitted to peer-reviewed journals for publication.Conclusion:Coffee consumption may be associated with a lower risk of incident CKD.
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