TABLE 1.

The profiles of three microarray datasets from the GEO database.

Data source	Series	Platform	Author	Year	Country	Sample (POCD/control)
circRNA	GSE190880	GPL21826	Ran	2021	China	3/3
miRNA	GSE95070	GPL19117	Wei	2017	China	5/5
mRNA	GSE115440	GPL11533	Mkrtchian	2018	Sweden	3/3