Early bird catches the worm? The relation between school schedule, sleep quality, and depression in Croatian adolescents

Kurtović, Ana; Hnojcik, Adrijana

doi:10.1002/pits.22597

Cited by 2 publications

(3 citation statements)

References 45 publications

(85 reference statements)

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“…Poor sleep positively predicted depressive symptoms in engineering students, especially the components of sleep latency, sleep duration, sleep disturbances, sleep medication, and daytime dysfunction. This finding partially coincides with prior studies[ 66 , 67 ]. Hypothesis II confirms that sleep plays a mediating role in the effect of smartphone addiction on depression, especially sleep latency, sleep disturbances and daytime dysfunction.…”

Section: Discussionsupporting

confidence: 93%

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Relationship between depression, smartphone addiction, and sleep among Chinese engineering students during the COVID-19 pandemic

Gao¹,

Hu²,

Ji³

et al. 2023

World J Psychiatry

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BACKGROUND Existing research has demonstrated that depression is positively related to smartphone addiction, but the role of sleep has not been discussed thoroughly, especially among engineering undergraduates affected by the coronavirus disease 2019 pandemic. AIM To evaluate sleep as a mediator of the association between smartphone addiction and depression among engineering undergraduates. METHODS Using a multistage stratified random sampling method, a cross-sectional survey was conducted among 692 engineering undergraduates from a top engineering university in China, and data were collected by self-reported electronic questionnaires. The data included demographic characteristics, such as age, gender, the Smartphone Addiction Scale-Short Version (SAS-SV), the 9-item Patient Health Questionnaire, and the Pittsburgh Sleep Quality Index. Pearson correlation and multiple linear regression analyses were used to examine the association between smartphone addiction and depression, while structural equation models were established to evaluate the possible mediating role of sleep. RESULTS Based on the cutoffs of the SAS-SV, the rate of smartphone addiction was 63.58 percent, with 56.21 percent for women and 65.68 percent for men, among 692 engineering students. The prevalence of depression among students was 14.16 percent, with 17.65 percent for women, and 13.18 percent for men. Smartphone addiction was positively correlated with depression, and sleep played a significant mediating effect between the two, accounting for 42.22 percent of the total effect. In addition, sleep latency, sleep disturbances, and daytime dysfunction significantly mediated the relationship between depression and smartphone addiction. The mediating effect of sleep latency was 0.014 [ P < 0.01; 95% confidence interval (CI): 0.006-0.027], the mediating effect of sleep disturbances was 0.022 ( P < 0.01; 95%CI: 0.011-0.040), and the mediating effect of daytime dysfunction was 0.040 ( P < 0.01; 95%CI: 0.024-0.059). The influence of sleep latency, sleep disturbances, and daytime dysfunction accounted for 18.42%, 28.95%, and 52.63% of the total mediating effect, respectively. CONCLUSION The results of the study suggest that reducing excessive smartphone use and improving sleep quality can help alleviate depression.

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Section: Discussionsupporting

confidence: 93%

“…In addition, sleep disorders affect students’ daytime function, resulting in daytime sleepiness, drowsiness, and inattention. This interferes with students’ daily tasks and reduces their interest in activities, exposing them to stress and irritability and worsening depressive symptoms[ 67 ].…”

Section: Discussionmentioning

confidence: 99%

Relationship between depression, smartphone addiction, and sleep among Chinese engineering students during the COVID-19 pandemic

Gao¹,

Hu²,

Ji³

et al. 2023

World J Psychiatry

View full text Add to dashboard Cite

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“…Previous studies have established significant negative bidirectional relationships between depression and sleep duration among adolescents ( Giannotti et al, 2002 ; Wang et al, 2021 ). Poor sleep duration predicts depression in students ( Fernandez-Mendoza et al, 2016 ; Kurtovic and Hnojcik, 2021 ). Appropriately extended daily sleep duration is essential to prevent adolescent depression ( Gangwisch et al, 2010 ).…”

Section: Introductionmentioning

confidence: 99%

Sleep duration and depression among adolescents: Mediation effect of collective integration

Gao

Lee

et al. 2022

Front. Psychol.

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Adolescence is a time of dramatic physical and mental change when adolescents are extremely vulnerable to various mental health problems. Depression and poor sleep duration are increasingly common among adolescents. This study is mainly aimed to verify the important mediating role of collective integration on sleep duration and depression and examine the interrelationship between sleep duration and depression in adolescents longitudinally. The data were obtained from the Wave 1 (in 2013–2014) and Wave 2 (in 2014–2015) longitudinal surveys of China Education Panel Survey (CEPS). The analytic sample in the present study included 8,829 seventh-grade students aged about 14 years (51.50% boys and 48.50% girls). A structural equation modeling (SEM) was used to investigate parent–child/teacher factors affecting adolescent sleep duration and depression, and Monte Carlo resampling with R was employed to confirm the significance of the mediation effects of collective integration. An autoregressive cross-lagged model was employed to analyze the interrelationship between adolescent sleep duration and depression. The findings were as follows. Firstly, collective integration strongly mediated the relationships among academic self-efficacy, parental involvement, teacher praise/criticism, sleep duration, and depression. Secondly, sleep duration and depression were found to have enduring effects and have effects on each other. Thirdly, parental involvement and teacher praise were positively associated with sleep quality and negatively associated with depression. Teacher criticism was negatively associated with sleep quality and positively associated with depression. Compared with teacher praise, teacher criticism has stronger effects on youth sleep duration and depression. In conclusion, improving sleep problems and depression in adolescents as early as possible can stop the persistent and long-term consequences of these problems. Increasing teacher praise, decreasing teacher criticism, and increasing adolescents’ collective integration were effective ways to improve adolescents’ sleep duration and mediate depression.

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Early bird catches the worm? The relation between school schedule, sleep quality, and depression in Croatian adolescents

Cited by 2 publications

References 45 publications

Relationship between depression, smartphone addiction, and sleep among Chinese engineering students during the COVID-19 pandemic

Relationship between depression, smartphone addiction, and sleep among Chinese engineering students during the COVID-19 pandemic

Sleep duration and depression among adolescents: Mediation effect of collective integration

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