“…The forest plot shown in Fig. 1 includes a total of 41 studies (12 RCTs [31,41,44,46,50,53,56,60,62,[65][66][67] and 29 observational registries [28,29,[32][33][34][35][36][37][38][39]42,43,45,48,49,51,52,54,55,[57][58][59]63,64,[68][69][70][71]73]) and provides the distribution of studies by estimate of the association between diabetes and the risk of all-cause death in 371,663 patients with HF (26.4% with diabetes), stratified by both HF subtype and study design.…”