Objectives: To investigate the relationships between comprehensive health literacy and health-related quality of life (QOL) among community-dwelling elderly.
Methods: In this cross-sectional study, community-dwelling elderly persons (n=330) aged >65 years were enrolled. The 14-item Health Literacy Scale (HLS-14) measured health literacy and yielded total, functional, interactive, and critical health literacy scores. The 12-item Short Form Health Survey measured health-related QOL and comprised the Physical Component Summary (PCS) and the Mental Component Summary (MCS). In the univariate analysis, the relationships were investigated between PCS or MCS and total health literacy or each subdomain of the HLS-14 by using Spearman's rank correlation coefficient. In the multiple regression analysis, models were constructed with either PCS or MCS as the dependent variable, total health literacy or each subdomain thereof as the independent variable, and input covariates.
Results: In the univariate analysis, the following relationships were detected: 1) PCS and functional health literacy (r
s=0.21,
p < 0.01), 2) MCS and total health literacy (r
s=0.14,
p=0.01), 3) MCS and functional health literacy (r
s=0.22,
p < 0.01), 4) MCS and interactive health literacy (r
s=0.14,
p=0.01). Multiple regression analysis showed the following significant and independent relationships between 1) PCS and functional health literacy (β=0.20,
p < 0.01), and 2) MCS and functional health literacy (β=0.13,
p=0.02).
Conclusion: In this study, functional health literacy and health-related QOL showed independent relationships. To improve health-related QOL, it is important to devise ways to improve health information to the elderly.
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