Comparative efficacy of various exercise interventions on cognitive function in patients with mild cognitive impairment or dementia: A systematic review and network meta-analysis.

"Competing interests The authors declare that they have no competing interests."

"We thank all the experts who provided us with their guidance and advice on the search strategy. We thank Guohuan Cao for helping us search and export literature from the SPORTDiscus database. We also greatly appreciate financial support from the National Natural Science Foundation of China. This systematic review was funded by the National Natural Science Foundation of China (81871854). The funder did not play any role in the preparation or production of the systematic review."

"This systematic review was registered with PROSPERO (CRD 42020192579), and the protocol was published in a peer-reviewed journal. We followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses−Network Meta-Analyses (PRISMA−NMA) for our study."