The authors' purpose in this study was to assess the interactive effects of stressors, coping with stress, and self-efficacy on depression and anxiety in maintenance hemodialysis (HD) patients. Patients (n = 453) undergoing HD for more than 1 year in Japan were investigated. The regression lines illustrating significant (p < .05) interactions predict that itching HD patients with low self-efficacy will be more depressive and anxious than nonitching patients. In HD patients who report a high degree of emotion-oriented coping, itching patients will be more anxious than nonitching patients. These new findings may lead to the development of specific and focused interventions for depression or anxiety in maintenance HD patients.
The variability of several blood parameters had a significant impact on all-cause and non-cardiac mortality. The levels of the variabilities were most likely related to poor physical conditions of the patients.
BackgroundSeveral epidemiological studies have demonstrated associations between variability in a number of biological parameters and adverse outcomes. As the variability may reflect impaired homeostatic regulation, we assessed albumin variability over time in chronic hemodialysis (HD) patients.MethodsData from 1346 subjects who received chronic HD treatment from May 2001 to February 2015 were analyzed according to three phases of HD treatment: post-HD initiation, during maintenance HD treatment, and before death. The serum albumin values were grouped according to the time interval from HD initiation or death, and the yearly trends for both the albumin levels and the intra-individual albumin variability (quantified by the residual coefficient of variation: Alb-rCV) were examined. The HD initiation and death-associated changes were also analyzed using generalized additive mixed models. Furthermore, the long-term trend throughout the maintenance treatment period was evaluated separately using linear regression models.ResultsAlbumin levels and variability showed distinctive changes during each of the 3 periods. After HD initiation, albumin variability decreased and reached a nadir within a year. During the subsequent maintenance treatment period (interquartile range = 5.2–11.0 years), the log Alb-rCV showed a significant upward trend (mean slope: 0.011 ± 0.035 /year), and its overall mean was -1.49 ± 0.08 (equivalent to an Alb-rCV of 3.22%). During the 1–2 years before death, this upward trend clearly accelerated, and the mean log Alb-rCV in the last year of life was -1.36 ± 0.17. The albumin levels and variability were negatively correlated with each other and exhibited exactly opposite movements throughout the course of chronic HD treatment. Different from the albumin levels, albumin variability was not dependent on chronological age but was independently associated with an individual’s aging and death process.ConclusionThe observed upward trend in albumin variability seems to be consistent with a presumed aging-related decline in homeostatic capacity.
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