Shuang Zhang , Xue-Na Wang , Qi-Jun Wu , Ping Xiao , Zhi-Hong Wang , Yan Lu , Hong Liu , Shu-Xin Liu
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引用次数: 0
Abstract
Background
Depression is not uncommon among patients with end-stage renal disease being treated by hemodialysis (HD). However, the relationship between depression and mortality is inconclusive. This study aims to investigate the above relationship in maintenance hemodialysis (MHD) patients.
Methods
We conducted a retrospective cohort study involving 746 adults who were treated with long-term HD within a single dialysis center. Depression was assessed with the self-reported Patient Health Questionnaire-9 (PHQ-9). Kaplan-Meier survival analysis, multivariable Cox regression models, restricted cubic splines, subgroup and sensitivity analyses were used to assess the relationship between depression and mortality risks.
Results
Among 746 patients (median follow-up: 30.47 months), 211 deaths (28.28 %) occurred, including 149 (19.97 %) cardiovascular deaths. Compared to the non-depression group, the depression was positively associated with all-cause mortality (HR = 1.34, 95 % = 1.01–1.77) and cardiovascular mortality (HR = 1.55, 95 % = 1.11–2.17) after multivariate adjustments. Similarly, we detected a significant positive association when PHQ-9 score was a continuous variable. Besides, the risk of all-cause and cardiovascular mortality in MHD patients increased by 13 % (HR = 1.13, 95 %CI = 1.00–1.27) and by 19 % (HR = 1.19, 95 %CI = 1.03–1.36) for each standard deviation increase in PHQ-9 score, respectively. The findings were robust in all the subgroup and sensitivity analyses. Kaplan-Meier analysis revealed significantly lower cumulative survival in the depression group compared to the non-depression group (p < 0.05). Furthermore, a positive linear dose-response relationship was observed between PHQ-9 scores and the risk of all-cause and cardiovascular mortality (pnon-linearity > 0.05).
Conclusions
Depression is a heterogeneous disorder and may be associated with increased mortality for MHD patients. Future research needs to assess whether early identification and treatment of depression may help to improve quality of life and survival in MHD patients.
期刊介绍:
General Hospital Psychiatry explores the many linkages among psychiatry, medicine, and primary care. In emphasizing a biopsychosocial approach to illness and health, the journal provides a forum for professionals with clinical, academic, and research interests in psychiatry''s role in the mainstream of medicine.