“…This lack of awareness or knowledge of ACP was identified as a major barrier [ 55 , 64 , 66 , 86 , 90 , 125 ]. Some studies noted a need for adequate ACP training for clinicians as a barrier [ 76 , 91 , 142 ]. Moreover, the findings of our review indicate that certain communities experienced or were vulnerable to a lack of engagement in ACP due to a combination of factors; disparities in health education [ 90 ], cultural and religious beliefs [ 57 , 86 , 90 , 142 ], socioeconomic challenges [ 57 , 140 ], a general distrust in the healthcare system [ 65 , 124 , 125 , 137 ], and racial or ethnic barriers [ 53 , 90 , 124 , 140 ] played significant roles.…”