Both John and Samantha have back$-$to$-$back appointments with the same doctor, Mark Jacobs, for their diabetes treatment. Whenever Samantha sees the interaction between John and Dr$.$ Jacobs, it's often jovial and light$-$hearted. When Dr$.$ Jacobs meets with her, however, the conversation is always stern and serious. For these reasons, she hesitates to follow the doctor's instructions because she doesn't trust him. This is an example of which social determinant of health $($SDoH$)?$