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Several study limitations should be acknowledged.

2024年1月23日 1008点热度 0人点赞 0条评论

Study strengths and limitations
The present study has several strengths, including a large representative cross-national sample and validated variables that enabled country-level comparisons. In addition, the current study adds to the literature by investigating a range of sleep indicators and 4 different patterns of SMU.

Several study limitations should be acknowledged. First, data were collected in 2017/18 before the start of the COVID-19 pandemic.

Boniel-Nissim, M., Tynjälä, J., Gobiņa, I., Furstova, J., van den Eijnden, R. J., Marino, C., … & Gariépy, G. (2023). Adolescent use of social media and associations with sleep patterns across 18 European and North American countries. Sleep Health. DOI: 10.1016/j.sleh.2023.01.005

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最后更新:2024年1月23日

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The study used existing publicly available and deidentified data The Stanford institutional review board deemed this study exempt as it uses deidentified, administratively collected data. The HPS contains the Patient Health Questionnaire-4 (PHQ-4), a well-established and validated screening tool for anxiety and depression. HPS public-use files were used to construct the analytic sample. School of Public Health Institutional Review Board deemed this study exempt. Several study limitations should be acknowledged. Ethical approval was not sought as the data were already publicly available online. We checked the robustness of our findings The aim of this study was twofold. This systematic review and meta-analysis includes previously published observational studies. This indicated there was no requirement for proceeding to a full formal ethics and data protection review by the Usher Research Ethics Group. No overall prospective analysis plan was used. Complete case analyses were used. Study approval was received from Institutional Review Boards (IRBs) of the primary research institution These findings must be interpreted in light of several limitations
These new findings should be examined alongside several study limitations. Analysis began August 2020 and ended May 2021. No protocol approval was needed for this study All GSHS surveys were approved in each country by both a national government administrative body and an institutional review board or ethics committee Our study has some limitations. Addressing school violence and bullying is essential in order to achieve the Sustainable Development Goals (SDGs) The baseline data collection for this study did not require ethical approval. Ethical approval was granted from the Ethics Committee of Stockholm. Complete case analyses were used. The data analysis had been planned in advance of the data gathering Gun Carrying This study followed the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE) reporting guideline for cross-sectional studies. The aim of this study was twofold. We also performed 2 sensitivity analyses. We are aware of only a few previous studies on this topic

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