Projects
Department of Nursing and Midwifery
Project 1: Sleep quality and associated factors in adolescence
Hyunwook Jung*
Abstract
Purpose
To understand sleep patterns and predictors of poor sleep quality among high school students.
Method
Three hundred ninety-two students aged 16.32 (± 1.29) years from an urban Life High School completed a cross-sectional survey about sleep habits that included the Pittsburgh Sleep Quality Index (PSQI) and the Morningness–Eveningness Questionnaire (MEQ).
Results
The higher-grade students identified a significantly high rate of high-calorie foods, later sleep time, and, less sleep duration (p = 0.002, p = 0.000, p = 0.010). Sleeping with the smartphone in bed and smartphone sound mode had a significant negative effect on sleep quality; sleep time, sleep duration, MEQ score, and awaken rate by smartphone. Students reported disturbed sleep; 39.9% were categorized as poor-quality sleepers by the PSQI, and BMI, sleep time, sleep latency and sleep duration were significantly related to sleep quality (p = 0.013, p = 0.003, p = 0.000, p = 0.000, respectively). A significant difference was identified between sleep chronotypes based on MEQ score and sleep quality based on the PSQI score (p = 0.025).
Conclusions
These results demonstrate that smartphone and BMI are related to insufficient sleep and sleep quality. In addition, the evening type students had lower sleep quality. Given the close relationships between sleep quality and food habits and smartphone habits, intervention programs to modify the habits in this population should be considered.
*Professor, College of Nursing and Midwifery, Life University, Cambodia
Citation:
Jung, H. (2020). Sleep quality and associated factors in adolescence. Life University, Cambodia, 1(1). 5-13.
Project 2: Effects of Sleep Quality on the Stress of University Students
Hyunwook Jung*
Abstract
Purpose
To understand sleep patterns and predictors of poor sleep quality and effect on the stress among university students.
Method
One hundred thirty-nine students aged 19.97 (± 2.79) years from an urban Life University completed a cross-sectional survey about sleep habits that included the Pittsburgh Sleep Quality Index (PSQI), the Morningness–Eveningness Questionnaire (MEQ), Epworth Sleepiness Scale (ESS), Sleep Belief Scale (SBS), Perceived Stress Scale (PSS) and Kessler Psychological Distress Scale (PDS).
Results
Sleeping with the smartphone in bed and smartphone sound mode had a significant negative effect on sleep quality; sleep time, MEQ score, and awaken by smartphone. Students reported disturbed sleep; 44.6% were categorized as poor-quality sleepers by the PSQI, and sleep time, sleep latency and sleep duration were significantly related to sleep quality (p = 0.000, p = 0.000, p = 0.000, respectively). A significant difference was identified between sleep chronotypes based on MEQ score and sleep quality based on the PSQI score (p = 0.037). PSS and PDS score were significantly related to sleep quality by the PSQI score (p = 0.001, p = 0.000, respectively).
Conclusions
These results demonstrate that using smartphone is related to insufficient sleep and sleep quality. In addition, the morning type students had lower sleep quality which effects on increasing the stress and psychological distress of university students. Given the close relationships between sleep quality and smartphone habits, intervention programs to modify the habits in this population should be considered.
*Professor, College of Nursing and Midwifery, Life University, Cambodia
Citation:
Jung, H. (2021). Effects of Sleep Quality on the Stress of University Students. Life University, Cambodia, 2(1). 5-16.
