“…By analyzing the included programs/projects, 50% of these are integrated into previously existing programs/projects that seek to promote other areas beyond intergenerationality—combined programs [ 26 , 28 , 29 ], making up the remaining 50% we have programs/projects focused on intergenerationality alone—we called them projects without combined intervention, meaning they are only focused on this area of intervention [ 25 , 31 , 32 ]. Generally, these programs’/projects’ intervention periods varied between two and twelve months of fieldwork, having between two and twenty-six total sessions, each lasting from 15 to 120 min [ 25 , 26 , 28 , 29 , 31 , 32 ], see Table 2 . As for the population inserted in those programs/projects, the age of the older adult population ranged from 64 to 97 years old, with the ages of children varying from 3 to 13 years old [ 25 , 26 , 28 , 29 , 31 , 32 ].…”