“…Seriously ill patients are often hospitalized and receive life-sustaining therapies by default, ie, unless patients or their caregivers have specifically requested otherwise. 1,2 Advance directives (ADs) were created to enable the many patients who wish to forgo such aggressive care near the end of life 3,4 to set limits on their future therapies. 5 However, despite national policies and practices that increasingly encourage AD completion, [6][7][8][9][10] evidence regarding the benefits of AD completion, or of making certain choices within ADs, is limited.…”