The Relationship between Life Satisfaction, Internet Addiction, and Sleep Quality among Students of Isfahan University of Medical Sciences

Abstract

Background: Life satisfaction is an important and effective factor in maintaining the physical and mental health of human beings. Maintaining sleep quality and internet addiction are among the factors that can affect life satisfaction. The aim of this study was to investigate the relationship between life satisfaction, internet addiction and sleep quality among students of Isfahan University of Medical Sciences.
 Methods: This questionnaire based cross-sectional study was conducted in Isfahan University of Medical Sciences. The collected data consisted of four axes: 1- demographic information, 2- life satisfaction questionnaire (SWLS), 3- Pittsburgh Sleep Quality Index (PSQI) and, 4- assessing internet use level with the Young Internet Addiction Questionnaire (IAT). Multivariate regression was used to test the relationship between SWLS, PSQI and IAT scores.
 Results: In total, 572 male and female students with mean age (3.10 ± 22.40) participated in this study. Among the subgroups of internet addiction, quick access to the internet and among the sleep quality subgroups subjective sleep quality, sleep disturbances and daytime dysfunction of life satisfaction were predicted. Also, poorer sleep quality was correlated with internet addiction. After controlling the effect of age, educational level, marital status, multivariate regression, there was a significant relationship between overall scores of life satisfaction and sleep quality (B = -0.66: -0.78 ˷ -0.53, P < 0.001).
 Conclusion: Of the total number of participants in this study, 33.7% had moderate to severe internet addiction, 51.9% had poor sleep quality and 55% had some levels of life satisfaction. Also, life satisfaction was higher among people with good sleep quality and less in people who had more access to the Internet.