A scoping review of theories and models applied for grief and bereavement projects.

This scoping review aimed to identify the theory-based studies related to grief and bereavement in palliative care. The investigation was carried out by searching seven databases and conducting manual searches. The search procedure yielded 51 scholarly papers, which revealed 33 theories or models and 37 instruments. The theories and models can be classified into distinct categories, namely grief patterns and coping mechanisms. This study can be a valuable reference for future research endeavors, particularly those employing deductive methodologies. It offers guidance in selecting appropriate theories or models that can be applied to further studies.