search for


The latent classes and factors affecting quality of life among South Koreans with metabolic syndrome
Journal of the Korean Data & Information Science Society 2018;29:313-26
Published online January 31, 2018
© 2018 Korean Data and Information Science Society.

Yoonju Lee1 · Yi Kyung Ha2 · Young-Suk Cho3 · Heejin Kim4

124College of Nursing, Pusan National University
3Department of Statistics, Pusan National University
Correspondence to: Instructor, College of Nursing, Pusan National University, Yangsan 50612, Korea. E-mail:
Received November 3, 2017; Revised November 30, 2017; Accepted December 5, 2017.
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
The purpose of this study is to identify latent classes involving the health behaviors of patients with metabolic syndrome and to examine the effects of demographic characteristics and health- related lifestyles on their quality of life. The data was sourced from the database of the 2013 Korea health panel survey. Health behavior variables (smoking, drinking, body mass index, and physical activities) were dichotomously re-categorized for latent class analysis. Two latent classes of metabolic syndrome, named `low physical actor' and `low physical actor with smoking and alcohol' were identified. Both latent classes showed statistically significant differences in demographic characteristics and EQ-5D index. Additionally, there were differences in the factors affecting quality of life between latent classes. This study's findings suggest that a tailored intervention based on features of the latent classes is required to improve the lifestyle and quality of life of metabolic syndrome patients.
Keywords : Health behavior, latent class analysis, metabolic syndrome, quality of life.