Accurate prognostic awareness and preference states influence the concordance between terminally ill cancer patients' states of preferred and received life-sustaining treatments in the last 6 months of life.

Prognostic awareness and preferred states of life-sustaining treatments were significantly associated with concordance between preferred and received life-sustaining-treatment states. Personalized interventions should be developed to cultivate terminally ill cancer patients' accurate prognostic awareness, allowing them to formulate realistic life-sustaining-treatment preferences and facilitating their receiving value-concordant end-of-life care.