Skip to main content
main-content

Tipp

Weitere Artikel dieser Ausgabe durch Wischen aufrufen

01.08.2014 | Ausgabe 6/2014

Quality of Life Research 6/2014

Depressive symptoms, health-related quality of life, and cardiac event-free survival in patients with heart failure: a mediation analysis

Zeitschrift:
Quality of Life Research > Ausgabe 6/2014
Autoren:
Kyoung Suk Lee, Terry A. Lennie, Jia-Rong Wu, Martha J. Biddle, Debra K. Moser

Abstract

Purpose

Health-related quality of life (HRQOL) and depressive symptoms both are associated with an adverse prognosis in heart failure (HF), although their associations with outcomes have been examined only in isolation. Therefore, it is unknown how HRQOL and depressive symptoms might interact in their associations with outcomes. The present study was conducted to determine whether the association between HRQOL and cardiac event-free survival is mediated by depressive symptoms in HF patients given that depressive symptoms are associated strongly with HRQOL.

Methods

A total of 209 HF patients (61 ± 11 years, 24 % female, 49 % NYHA III/IV) participated. The Minnesota Living with HF Questionnaire and the Patient Health Questionnaire-9 were used to measure HRQOL and depressive symptoms, respectively. Patients were followed for a median of 357 days to determine cardiac event-free survival.

Results

In Cox regression analysis, HRQOL [hazard ratio (HR) 1.013; 95 % confidence interval (CI) 1.001–1.026] and depressive symptoms (HR 1.075; 95 % CI 1.025–1.127) predicted cardiac event-free survival separately, controlling for demographic and clinical variables. HRQOL independently explained 38.7 % of the variance in depressive symptoms (p < 0.05; standardized β = 0.695) in a multiple regression. When HRQOL and depressive symptoms were entered in the model simultaneously, only depressive symptoms independently predicted cardiac event-free survival (HR 1.068; 95 % CI 1.001–1.139), demonstrating a mediation effect of depressive symptoms.

Conclusions

Depressive symptoms mediated the relationship between HRQOL and cardiac event-free survival. Interventions targeting HRQOL to enhance patient outcomes must also address patient depressive symptoms to be fully efficacious.

Bitte loggen Sie sich ein, um Zugang zu diesem Inhalt zu erhalten

Sie möchten Zugang zu diesem Inhalt erhalten? Dann informieren Sie sich jetzt über unsere Produkte:

Springer Professional "Wirtschaft+Technik"

Online-Abonnement

Mit Springer Professional "Wirtschaft+Technik" erhalten Sie Zugriff auf:

  • über 69.000 Bücher
  • über 500 Zeitschriften

aus folgenden Fachgebieten:

  • Automobil + Motoren
  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Elektrotechnik + Elektronik
  • Energie + Umwelt
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb
  • Maschinenbau + Werkstoffe

Testen Sie jetzt 30 Tage kostenlos.

Springer Professional "Wirtschaft"

Online-Abonnement

Mit Springer Professional "Wirtschaft" erhalten Sie Zugriff auf:

  • über 58.000 Bücher
  • über 300 Zeitschriften

aus folgenden Fachgebieten:

  • Bauwesen + Immobilien
  • Business IT + Informatik
  • Finance + Banking
  • Management + Führung
  • Marketing + Vertrieb




Testen Sie jetzt 30 Tage kostenlos.

Literatur
Über diesen Artikel

Weitere Artikel der Ausgabe 6/2014

Quality of Life Research 6/2014 Zur Ausgabe

Premium Partner

    Bildnachweise