Vladimir A Dobronravov1, Irina A Vasilieva2. 1. Research Institute of Nephrology, Pavlov University, L'va Tolstogo str. 6-8, Saint Petersburg, 197022, Russian Federation. 2. Research Institute of Nephrology, Pavlov University, L'va Tolstogo str. 6-8, Saint Petersburg, 197022, Russian Federation. ira707@yandex.ru.
Abstract
PURPOSE: The relationship of health-related quality of life (HRQoL) with mortality in young and middle-aged hemodialysis (HD) patients has scarcely been studied and remains unclear. The aim of the study was to examine whether physical and mental components of HRQoL are related to long-term risks of all-cause and cardiovascular (CV) death in this particular HD population. METHODS: A long-term observational prospective study included 238 prevalent HD patients aged 18-64 years. The median follow-up was 50 (22, 96) months (maximum 13.9 years). HRQoL variables of the Short Form 36 Health Survey (SF-36), clinical, and demographic data were assessed at the time of inclusion. Associations of baseline HRQoL scores with all-cause and CV mortality were assessed using Kaplan-Meier survival plots and Cox regression analysis adjusted for clinical and demographic confounders. RESULTS: The majority of HRQoL parameters were associated with outcomes in univariable analyses. In multivariable regression models adjusted for clinical and demographic confounders, Physical Functioning (PF) and Physical Component Summary Score (PCS) remained independently related to all-cause mortality [hazard ratio (HR) for a 1-point increase in PF and PCS were 0.981, 95% confidence interval (CI) 0.972-0.989 and 0.954, CI 0.929-0.980, respectively] and CV death (HR for a 1-point increase in PF and PCS were 0.975, CI 0.962-0.988 and 0.950, CI 0.915-0.985, respectively). CONCLUSION: PF and PCS assessment seems to be relevant for refining the prognosis and clinical decision-making in young and middle-aged HD patients.
PURPOSE: The relationship of health-related quality of life (HRQoL) with mortality in young and middle-aged hemodialysis (HD) patients has scarcely been studied and remains unclear. The aim of the study was to examine whether physical and mental components of HRQoL are related to long-term risks of all-cause and cardiovascular (CV) death in this particular HD population. METHODS: A long-term observational prospective study included 238 prevalent HD patients aged 18-64 years. The median follow-up was 50 (22, 96) months (maximum 13.9 years). HRQoL variables of the Short Form 36 Health Survey (SF-36), clinical, and demographic data were assessed at the time of inclusion. Associations of baseline HRQoL scores with all-cause and CV mortality were assessed using Kaplan-Meier survival plots and Cox regression analysis adjusted for clinical and demographic confounders. RESULTS: The majority of HRQoL parameters were associated with outcomes in univariable analyses. In multivariable regression models adjusted for clinical and demographic confounders, Physical Functioning (PF) and Physical Component Summary Score (PCS) remained independently related to all-cause mortality [hazard ratio (HR) for a 1-point increase in PF and PCS were 0.981, 95% confidence interval (CI) 0.972-0.989 and 0.954, CI 0.929-0.980, respectively] and CV death (HR for a 1-point increase in PF and PCS were 0.975, CI 0.962-0.988 and 0.950, CI 0.915-0.985, respectively). CONCLUSION: PF and PCS assessment seems to be relevant for refining the prognosis and clinical decision-making in young and middle-aged HD patients.
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