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Cognitive dysfunction is a major consequence of end-stage renal disease (ESRD) and has further detrimental effects on both functionality and the quality of life for patients. While peritoneal dialysis is generally advocated in ESRD, there is a substantial knowledge gap about the differential effects of chronic dialysis modalities on cognitive dysfunction and decline. The aim of this meta-analysis is to evaluate cognitive function in peritoneal dialysis versus hemodialysis patients.

We performed a systematic review in different databases to identify studies that assessed the effect of different dialysis modalities on cognitive functions. Inclusion criteria for our meta-analysis were all studies that compared the effects of peritoneal dialysis on cognitive functions compared to intermittent hemodialysis. The data collected were the name of the first …