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ABSTRACT: Background
Assessing health-related quality of life (HRQoL) in patients with heart failure (HF) is an important goal of clinical care and HF research. We sought to investigate ethnic differences in perceived HRQoL and its association with mortality among patients with HF and left ventricular ejection fraction ≤35%, controlling for demographic characteristics and HF severity.Methods and results
We compared 5697 chronic HF patients of Indian (26%), white (23%), Chinese (17%), Japanese/Koreans (12%), black (12%), and Malay (10%) ethnicities from the HF-ACTION and ASIAN-HF multinational studies using the Kansas City Cardiomyopathy Questionnaire (KCCQ; range 0-100; higher scores reflect better health status). KCCQ scores were lowest in Malay (58±22) and Chinese (60±23), intermediate in black (64±21) and Indian (65±23), and highest in white (67±20) and Japanese or Korean patients (67±22) after adjusting for age, sex, educational status, HF severity, and risk factors. Self-efficacy, which measures confidence in the ability to manage symptoms, was lower in all Asian ethnicities (especially Japanese/Koreans [60±26], Malay [66±23], and Chinese [64±28]) compared to black (80±21) and white (82±19) patients, even after multivariable adjustment (P<.001). In all ethnicities, KCCQ strongly predicted 1-year mortality (HR 0.45, 95% CI 0.30-0.67 for highest vs lowest quintile of KCCQ; P for interaction by ethnicity .101).Conclusions
Overall, HRQoL is inversely and independently related to mortality in chronic HF but is not modified by ethnicity. Nevertheless, ethnic differences exist independent of HF severity and comorbidities. These data may have important implications for future global clinical HF trials that use patient-reported outcomes as endpoints.
SUBMITTER: Luo N
PROVIDER: S-EPMC5663287 | biostudies-literature | 2017 Sep
REPOSITORIES: biostudies-literature

Luo Nancy N Teng Tiew-Hwa Katherine TK Tay Wan Ting WT Anand Inder S IS Kraus William E WE Liew Houng Bang HB Ling Lieng Hsi LH O'Connor Christopher M CM Piña Ileana L IL Richards A Mark AM Shimizu Wataru W Whellan David J DJ Yap Jonathan J Lam Carolyn S P CSP Mentz Robert J RJ
American heart journal 20170701
<h4>Background</h4>Assessing health-related quality of life (HRQoL) in patients with heart failure (HF) is an important goal of clinical care and HF research. We sought to investigate ethnic differences in perceived HRQoL and its association with mortality among patients with HF and left ventricular ejection fraction ≤35%, controlling for demographic characteristics and HF severity.<h4>Methods and results</h4>We compared 5697 chronic HF patients of Indian (26%), white (23%), Chinese (17%), Japan ...[more]