“…For study settings, in quantitative and mixed-method studies, 10 studies took place nationally, 24 , 41 , 47–51 , 53 , 63 , 64 19 in the urban areas, 20 , 21 , 23 , 31–33 , 36–38 , 40 , 42 , 44–46 , 52 , 54 , 55 , 58 , 76 16 in rural areas, 22 , 25–29 , 34 , 39 , 43 , 56 , 57 , 59–62 , 75 and two studies in multiple settings. 30 , 35 For quantitative studies, four of them were conducted in urban settings, 66 , 67 , 70 , 71 five were in the rural area 65 , 69 , 72–74 and one study could not be specified. 68 Overall, thirteen 22 , 26–29 , 32 , 42 , 45 , 57–60 , 64 studies have the mean age of older people as the participants (60 years old and above), whereas the rest of the studies were adults 18 years and older.…”