More than 50% of all hospitalized patients experience pain in the last days of their lives and despite proven therapies for pain relief, family members report that the patient experienced moderate to severe pain at least half of the time.
Connors A, Dawson N, Desbiens N, et al. A Controlled Trial to Improve Care for Seriously Ill Hospitalized Patients: The study to understand prognoses and preferences for outcomes and risks of treatments (SUPPORT). JAMA. 1995; 274(20): 1591-8. http://jamanetwork.com/journals/jama/article-abstract/391724