Figure 5.

Variables that have been highlighted as important for subphenotyping (used for subgrouping, significantly differing among subgroups, or being important for classification models) in two or more studies. Green shows the number of studies that used each variable to define subgroups. Orange shows the number of studies that found this variable to differ significantly among subgroups or to be important for classification models. Grey shows the number of studies that assessed each variable but did not show it to be important for subphenotyping.