“…Some gaps in the literature related to the caregiving situation as a predictor of the caregiver’s subjective burden exist. First, many studies have addressed the caregiving situation in relation to a variety of topics (e.g., engagement in advanced care planning, gender studies, and the impact on ICs’ physical and mental health) [ 47 , 53 , 54 , 55 , 56 ]. However, the understanding of caregiving situations varies widely among the studies [ 57 , 58 , 59 , 60 ], and they are often vaguely defined [ 61 , 62 , 63 , 64 , 65 ].…”