• Siew Tzuh Tang, Fur-Hsing Wen, Wen-Cheng Chang, Chia-Hsun Hsieh, Wen-Chi Chou, Jen-Shi Chen, and Ming-Mo Hou.
• Chang Gung University, School of Nursing, Tao-Yuan, Taiwan, ROC; Department of Nursing, Chang Gung Memorial Hospital at Kaohsiung, Kaohsiung, Taiwan, ROC; Division of Hematology-Oncology, Chang Gung Memorial Hospital at Linkou, Tao-Yuan, Taiwan, ROC. Electronic address: sttang@mail.cgu.edu.tw.
• J Pain Symptom Manage. 2017 Nov 1; 54 (5): 628-636.e2.

ContextStability of life-sustaining treatment (LST) preferences at end of life (EOL) has not been well established for terminally ill cancer patients nor have transition probabilities been explored between different types of preferences.ObjectiveWe assessed the stability of cancer patients' LST preferences at EOL by identifying distinct LST preference states and examining the probability of each state transitioning to other states between consecutive time points.MethodsStability of LST preferences (cardiopulmonary resuscitation, intensive care unit [ICU] care, cardiac massage, intubation with mechanical ventilation, intravenous nutrition support, and nasogastric tube feeding) was examined among 303 cancer patients in their last six months by hidden Markov modeling.ResultsSix distinct LST preference states (initial size) were identified: uniformly preferring (8.3%), uniformly rejecting (33.8%), and uniformly uncertain about (20.5%) LST, favoring intravenous nutrition support but rejecting other treatments (19.9%), and favoring (3.6%) or uncertain about (14.0%) nutrition support and ICU care while rejecting other treatments. Shifts between LST preference states were relatively small between any two time points (transition probability of staying at the same state was 92.1% to 97.5%), except for the state characterized by uncertainty about nutrition support and ICU care while rejecting other treatments, in which 8.3% of patients shifted LST preferences toward uniform uncertainty at a subsequent assessment.ConclusionsOur patients' LST preferences remained stable without prominent shifts toward preferring less aggressive LSTs even when death approached. Clarifying patients' understanding and expectations about LST efficacy and tailoring interventions to the unique needs of patients in each state may provide personalized EOL care.Copyright © 2017 American Academy of Hospice and Palliative Medicine. Published by Elsevier Inc. All rights reserved.

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