• Siew Tzuh Tang, Jen-Shi Chen, Wen-Chi Chou, Kuan-Chia Lin, Wen-Cheng Chang, Chia-Hsun Hsieh, and Chiao-En Wu.
• School of Nursing, Chang Gung University, 259 Wen-Hwa 1st Road, Kwei-Shan, Tao-Yuan, 333, Taiwan. sttang@mail.cgu.edu.tw.
• Support Care Cancer. 2016 Jan 1; 24 (1): 83-91.

PurposeTerminally ill cancer patients experience progressive functional decline, accelerating symptom severity, deteriorating social support, and self-perceived burden to others (SPB), predisposing them to depressive symptoms. However, changes in the prevalence of severe depressive symptoms as death approaches and the unique roles of these four variables have not been adequately studied. This study explored longitudinal changes in and associations of symptom distress, functional dependence, social support, and SPB with prevalence of severe depressive symptoms in the last year of life.MethodsA convenience sample of 325 cancer patients was longitudinally followed until death. Prevalence of severe depressive symptoms (score ≥11 on the depression subscale of the Hospital Anxiety and Depression Scale) was examined by multivariate logistic regression modeling with the generalized estimating equation.ResultsThe prevalence of severe depressive symptoms increased as death approached. The likelihood of severe depressive symptoms was significantly higher in patients who had higher levels of symptom distress and functional dependence, received greater tangible support, and reported high SPB, but lower for patients reporting a higher level of affectionate support and positive social interactions with their supportive network.ConclusionPrevalence of severe depressive symptoms increased as death approached and was associated with several modifiable factors. Healthcare professionals should become familiar with these factors to identify vulnerable patients. To decrease the likelihood of terminally ill cancer patients' severe depressive symptoms, they should receive effective interventions to manage their symptoms, appropriately foster social support to restore their fragile self-esteem due to depending on others, and lighten their SPB.

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