Copsy index

• Original Contribution • • 12 October 2021 Quality of life and mental health in children and adolescents during the first year of the COVID-19 pandemic: results of a two-wave nationwide population-based study • ORCID: orcid.org/0000-0002-2031-095X • • • • • • • • • • • • • … • Show authors European Child & Adolescent Psychiatry volume 32, pages 575–588 ( 2023) Background The COVID-19 pandemic has disrupted the lives of children and adolescents worldwide. The German COPSY study is among the first population-based longitudinal studies to examine the mental health impact of the pandemic. The objective of the study was to assess changes in health-related quality of life (HRQoL) and mental health in children and adolescents and to identify the associated risk and resource factors during the pandemic. Methods A nationwide longitudinal survey was conducted with two waves during the pandemic (May/June 2020 and December 2020/January 2021). In total, n = 1923 children and adolescents aged 7 to 17 years and their parents participated (retention rate from wave 1 to wave 2: 85%). The self-report and parent-proxy surveys assessed HRQoL (KIDSCREEN-10), mental health problems (SDQ with the subscales emotional problems, conduct problems, hyperactivity, and peer problems), anxiety (SCARED), depressive symptoms (CES-DC, PHQ-2) and psychosomatic complaints (HBSC-SCL). Mixed model panel regression analyses were conducted to examine longitudinal changes in mental health and to identify risk an...

• Original Contribution • • 25 January 2021 Impact of the COVID-19 pandemic on quality of life and mental health in children and adolescents in Germany • ORCID: orcid.org/0000-0002-2031-095X • ORCID: orcid.org/0000-0001-7498-6229 • • • ORCID: orcid.org/0000-0002-3340-0452 • … • ORCID: orcid.org/0000-0003-4197-8606 Show authors European Child & Adolescent Psychiatry volume 31, pages 879–889 ( 2022) The COVID-19 pandemic has caused unprecedented changes in the lives of 1.6 billion children and adolescents. First non-representative studies from China, India, Brazil, the US, Spain, Italy, and Germany pointed to a negative mental health impact. The current study is the first nationwide representative study to investigate the impact of the COVID-19 pandemic on health-related quality of life (HRQoL) and mental health of children and adolescents in Germany from the perspective of children themselves. A representative online survey was conducted among n = 1586 families with 7- to 17-year-old children and adolescents between May 26 and June 10. The survey included internationally established and validated instruments for measuring HRQoL (KIDSCREEN-10), mental health problems (SDQ), anxiety (SCARED), and depression (CES-DC). Results were compared with data from the nationwide, longitudinal, representative BELLA cohort study ( n = 1556) conducted in Germany before the pandemic. Two-thirds of the children and adolescents reported being highly burdened by the COVID-19 pandemic. They exp...

Download a PDF of the paper titled CoPhy: A Scalable, Portable, and Interactive Index Advisor for Large Workloads, by Debabrata Dash (ArcSight) and 2 other authors Abstract: Index tuning, i.e., selecting the indexes appropriate for a workload, is a crucial problem in database system tuning. In this paper, we solve index tuning for large problem instances that are common in practice, e.g., thousands of queries in the workload, thousands of candidate indexes and several hard and soft constraints. Our work is the first to reveal that the index tuning problem has a well structured space of solutions, and this space can be explored efficiently with well known techniques from linear optimization. Experimental results demonstrate that our approach outperforms state-of-the-art commercial and research techniques by a significant margin (up to an order of magnitude). arXivLabs: experimental projects with community collaborators arXivLabs is a framework that allows collaborators to develop and share new arXiv features directly on our website. Both individuals and organizations that work with arXivLabs have embraced and accepted our values of openness, community, excellence, and user data privacy. arXiv is committed to these values and only works with partners that adhere to them. Have an idea for a project that will add value for arXiv's community? Learn more about arXivLabs.

The COVID-19 pandemic has negatively impacted the mental health of children and adolescents as well as their parents. This is shown by multinational meta-analyses and the German nationwide COPSY (COVID-19 and Psychological Health) longitudinal study ( Methods A total of n =1618 families with children aged 7 to 17 took part at W3 in the self-report (aged 11 to 17 years old, n =1181) and parent report (of children aged 7 to 17 years old, n =1618) (re-participation rate, 73.7%). Parents who took part in all three waves were on average older and tended to have a low level of education. No other significant differences were found with respect to sociodemographics or mental health well-being. The sample corresponds to the distribution of the German population according to the current microcensus (2018). Screening was performed using internationally validated questionnaires on health-related quality of life (KIDSCREEN-10 Index), mental health problems (SDQ), generalized anxiety (SCARED), depressive symptoms (PHQ-2 and PHQ-8), and psychosomatic complaints (HBSC-SCL), as well as items covering health behavior. Data analyses were conducted using descriptive statistics, chi-square tests, and logistic regressions. Cramers-V (whereby V =0.1/0.3/0.5 indicates a small/medium/strong effect, respectively) was used as an effect size measure for changes over the three survey waves and compared to pre-pandemic reference values ​​from the German BELLA study ( Results At W3, children and adoles...