대학생의 스마트폰 중독, 생활 스트레스 및 수면의 질 간의 연관성

Relationship of Smartphone Addition, Living Stress and Quality of Sleep in University Students

Purpose: This study aimed to examine the relationship of smartphone addiction, living stress and quality of sleep in university students. Methods: 115 participants were recruited from a university during the period of June 11 to 12, 2015. A self-report questionnaire on smartphone addiction scale, living stress scale and Pittsburgh Sleep Quality Index(PSQI) was administered. Instead of the global PSQI, 2-factor model of PSQI including sleep efficiency and perceived quality of sleep was used to identify sleep quality. Results: Classification of smartphone addiction score revealed high-risk group(11.3%), latent risk group(40.9%) and general group(47.8%), respectively. The average score of the living stress importance(1.15±0.49) was higher than living stress frequency(0.77±0.36). The score of sub-categories of living stress showed that the level of living stress from the present task was higher than personal relationship and 'study problem' was the most stressful event(2.03±0.64). The average score of quality of sleep (6.95±2.79) was higher than the cut point. The correlations between smartphone addiction and perceived quality of sleep are significantly related in high-risk group(r=.62, p<.05). In latent risk group and general group the relations were found between living stress and perceived quality of sleep. But sleep efficiency has no correlation among any other variables. Conclusion: The present findings suggest that smartphone addiction and perceived quality of sleep are significantly related in highly addicted subjects. Therefore, healthcare providers need to pay attention to subjectively perceived quality of sleep to manage the smartphone addiction.