Background: Anxiety and psychosomatic disorders are the most common mental health problems among children and adolescents. Such disorders could have negative effects on lifestyle habits. 
Objective: To examines the clustering of anxiety and psychosomatic disorders in Iranian children and adolescents, and its association with their lifestyles.
Methods: This cross-sectional survey was conducted as the fifth survey of a national school-based program in Iran in 2015. Participants were 14,400 students, aged 7 to 18 years old, who were selected by a multi-stage cluster random sampling method, from 30 provinces across the country. Data were obtained from a World Health Organization–Global Student Health Survey questionnaire (WHO-GSHS). A two-step cluster analysis was performed and clusters of anxiety and psychosomatic disorder were identified. The logistic regression model was applied to predict the association between identified clusters and lifestyle variables including dietary habits, sedentary behavior, and sleep duration. The reference category of this model was considered as clusters including students with low anxiety and low psychosomatic disorder symptoms. In order to determine the relation between demographic characteristics and other variables with lifestyle habits in identified clusters, one-way analysis of variance (ANOVA) and Pearson Chi-square tests were used. Analyses were performed in SPSS v 18 (PASW Statistics for Windows). The statistical significance level was set at p<0.05.
Results: The mean (SD) of the age of the participants was 12.29 (3.15). The prevalence of high anxiety with recurrent mental disorders was 20.4%. This group of students had a higher frequency of sadness than other students did (43.8% vs. 25.8%, p<0.001). They had a higher frequency of prolonged screen time (>2 hr/day) (OR: 2.00, 95% CI: 1.79 2.24), skipping breakfast (OR: 1.83; 95% CI:1.59-2.11), as well as daily consumption of candy (OR: 1.15; 95% CI: 1.001-1.31), salty snacks (OR: 1.81, 95% CI: 1.52-2.16), and soft drinks (OR: 6.68, 95% CI: 4.86-9.18). Moreover, they had a lower frequency of consuming fruits/vegetables (OR: 0.79, 95% CI: 0.69-0.88) and milk (OR: 0.76, 95% CI: 0.69-0.84) than their counterparts.
Conclusion: This study showed that risk of unhealthy lifestyle behaviors in children and adolescents with high anxiety and psychosomatic disorders higher than others, should be considered in health promoting programs.
Keywords: Psychophysiological disorders; Anxiety; Lifestyle; Child; Adolescent


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July-September 2019 (Volume 11, Issue 3)


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In the second issue of the journal Electronic Physician for 2019, we have several papers including four Randomized Controlled Trials, a model development study, a case report, an editorial, a letter to editor (LTE), and several original research including two studies with qualitative approach. Authors of this issue are from nine countries: Iran, The Netherlands, Sweden, Italy, India, Thailand, Saudi Arabia, United Arab Emirates (UAE), and Jordan. Read more...


The 6th World Conference on Research Integrity (WCRI) is to be held on June 2-5, 2019 in Hong Kong.

The WCRI is the largest and most significant international conference on research integrity. Since the first conference in Lisbon in 2007, it has given researchers, teachers, funding agencies, government officials, journal editors, senior administrators, and research students opportunities to share experiences and to discuss and promote integrity in research. Read more:


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Deadline for submission: 7 March 2019, 16:00 (GMT)

TDR provides fellowships for early- to mid-career researchers and clinical trial staff (e.g. clinicians, pharmacists, medical statisticians, data managers, other health researchers) in low- and middle-income countries (LMICs) to learn how to conduct clinical trials. Read more:

Meta-Analysis Workshops in New York, USA, and London, UK, in April and May 2019

Don't miss this exceptional opportunity to learn how to perform and report a Meta-analysis correctly. Two Meta-analysis workshops are organized in April and May 2019 by Dr. Michael Borenstein in New York, USA (April 08-10, 2019) and London, UK (May 27-29).

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Dr. Michael Borenstein, one of the authors of Introduction to Meta-Analysis, is widely recognized for his ability to make statistical concepts accessible to researchers as well as to statisticians. He has lectured widely on meta-analysis, including at the NIH, CDC, and FDA. Read more: