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. 2021 Jan 8;18(2):460.
doi: 10.3390/ijerph18020460.

Sleep Quality, Mental and Physical Health: A Differential Relationship

Violeta Clement-Carbonell  1 , Irene Portilla-Tamarit  1 , María Rubio-Aparicio  1 , Juan J Madrid-Valero  1
Affiliations

Sleep Quality, Mental and Physical Health: A Differential Relationship

Violeta Clement-Carbonell et al. Int J Environ Res Public Health. .

Abstract

This study aimed to explore the association between sleep quality and its components and both dimensions of health-related quality of life (HRQoL) in a sample of young adults. The sample comprised 337 participants with a mean age of 19.6 y (SD = 2.22). Sleep quality and HRQoL were measured through the Pittsburgh Sleep Quality Index and the SF-12, respectively. Regression analyses were used to investigate the association between sleep quality and HRQoL. Our results confirm the significant association between sleep quality and both physical (p = 0.015; β = -0.138; R2 = 0.07) and mental (p < 0.001; β = -0.348; R2 = 0.22) HRQoL in the adjusted models. However, our results also highlight the differential association between sleep quality and mental and physical HRQoL. Whereas all the sleep quality components (except sleep latency; p = 0.349) were significantly associated with mental HRQoL (p < 0.05), just two subscales (subjective sleep quality; p = 0.021; β = -0.143 and sleep disturbances p = 0.002; β = -0.165) showed a significant association. This study showed that there is a stronger association between sleep quality and mental health than sleep quality and physical health in young adults.

Keywords: Pittsburgh Sleep Quality Index; mental health; physical health; quality of life; sleep quality.

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Conflict of interest statement

The authors declare no conflict of interest.

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