“…Relative studies contained different contents on a personal level. In addition, 28 papers included socio-demographic factors ( 24 , 25 , 27 , 28 , 30–43 , 45–51 , 53–55 ); 24 included biological factors ( 24–30 , 32 , 33 , 35 , 36 , 39 , 41–44 , 48–55 ); 21 included behavioral factors ( 25–30 , 32 , 33 , 35 , 36 , 39 , 41 , 44–46 , 48–51 , 53 , 55 ); and 19 included psychological factors ( 25 , 27–29 , 31–35 , 42–46 , 49 , 51–53 , 55 ), 32 in total, all of which involved the personal level. There were 24 articles analyzing the interpersonal level ( N = 24) ( 24–30 , 33–35 , 39 , 42–49 , 51–55 ); 18 analyzing the organization level ( N = 18) ( 25 , 27 , 29 , 32–39 , 42 , 44–46 , 51 , 53 , 55 ); 17 articles included factors related to the community level ( N = 17) ( 25 , 27 , 29 , 31–33 , 35 , 37–39 , 44–46 , 51–53 , 55 ); and only 3 articles included factors related the policy level ( N = 3) ( 25 , 33 , 51 ...…”