Associations between screen time, negative life events, and emotional and behavioral problems among Chinese children and adolescents

Association between meeting the 24-h movement guidelines and psychosocial health in children: A cross-sectional study

OBJECTIVE

Emerging evidence suggests that meeting the 24-h movement guidelines is associated with optimal mental health. However, there remains some uncertainty regarding this association in children. Therefore, this study aimed to examine the association between meeting the 24-h movement guidelines and psychosocial health in children.

METHODS

A cross-sectional study design was employed to investigate 2005 children aged 9-12 years from four districts of Shanghai, China. The 24-h movement behaviours were assessed using selected items from the Health Behaviour in School-aged Children (HBSC) survey questionnaire. Children's self-rated psychosocial health was evaluated using the Strengths or Difficulties Questionnaire (SDQ). Generalised Linear Models with the ordinal logistic module were employed to analyse the association between meeting the 24-h movement guidelines and psychosocial health.

RESULTS

The overall prevalence of meeting all three 24-h movement recommendations was 10.2%. Among children, 7.9% of them exhibited abnormal total difficulties, with a notable difference between sex (boys: 11.2%, girls: 7.0%, p = 0.001). Meeting all three 24-h movement behaviour recommendations was associated with reduced total difficulties, emotional symptoms, conduct problems, hyperactivity and peer problems. Furthermore, a dose-response association was observed, indicating that meeting a greater number of 24-h movement behaviour recommendations was associated with enhanced psychosocial health, particularly in boys.

CONCLUSION

The findings of this study highlight the positive association between meeting the 24-h movement guidelines and psychosocial health in children. Notably, meeting more of these recommendations was associated with a lower likelihood of experiencing psychosocial problems, with greater benefits observed in boys compared with girls.

Association between Children's Difficulties, Parent-Child Sleep, Parental Control, and Children's Screen Time: A Cross-Sectional Study in Japan

Children's screen time may affect their growth and development. However, differences in the impact of various psychiatric and psychological factors on children's screen time is a research gap. This study aimed to explore the differences in the influence of related factors affecting children's screen time based on their sleep, difficulties, and parental control among Japanese elementary and junior high school students. A cross-sectional survey was conducted among parents in Japan. Data on screen time duration, parent-child background, strengths and difficulties, sleep variables, and parental control types were collected from 225 households. A regression analysis revealed that high Strengths and Difficulties Questionnaire (SDQ) scores (β = 0.166, p = 0.008), sleep duration (β = -0.281, p < 0.001), and parental control (β = -0.204, p = 0.001) were significantly related to children's screen time. Additionally, it was found that parents' late bedtimes affect children's screen time by mediating children's sleep duration. This study, together with previous research, provides comprehensive insights into design interventions to decrease the screen time of children in the Japanese context.

The association between academic pressure and adolescent mental health problems: A systematic review

BACKGROUND

Academic pressure is a potential contributor to adolescent mental health problems, but international evidence on this association has never been synthesised.

METHODS

We conducted the first systematic review of the association between academic pressure and adolescent depression, anxiety, self-harm, suicidality, suicide attempts and suicide. We searched MEDLINE, PsycINFO, ERIC and Web of Science (core collection) up to November 24, 2022, for studies of school-going children or adolescents, which measured academic pressure or timing within the school year as the exposure and depression, anxiety, self-harm, or suicidal ideation, attempts or suicide as outcomes. Risk of bias was assessed using the Mixed Methods Appraisal Tool. We used narrative synthesis to summarise the evidence. The review was prospectively registered with PROSPERO (CRD42021232702).

RESULTS

We included 52 studies. Most studies assessed mixed anxiety and depressive symptoms (n = 20) or depressive symptoms (n = 19). Forty-eight studies found evidence of a positive association between academic pressure or timing within the school year and at least one mental health outcome.

LIMITATIONS

Most studies were cross-sectional (n = 39), adjusted for a narrow range of confounders or had other limitations which limited the strength of causal inferences.

CONCLUSIONS

We found evidence that academic pressure is a potential candidate for public health interventions which could prevent adolescent mental health problems. Large population-based cohort studies are needed to investigate whether academic pressure is a causal risk factor that should be targeted in school- and policy-based interventions.

FUNDING

UCL Health of the Public; Wellcome Institutional Strategic Support Fund.

Unhealthy lifestyles and clusters status among 3637 adolescents aged 11-23 years: a school-based cross-sectional study in China

BACKGROUND

Unhealthy lifestyles are risk factors for non-communicable diseases (NCDs) and tend to be clustered, with a trajectory that extends from adolescence to adulthood. This study investigated the association of diets, tobacco, alcohol, physical activity (PA), screen time (ST) and sleep duration (SD) in a total of six lifestyles, separately and as cumulative lifestyle scores, with sociodemographic characteristics among school-aged adolescents in the Chinese city of Zhengzhou.

METHODS

In the aggregate, 3,637 adolescents aged 11-23 years were included in the study. The questionnaire collected data on socio-demographic characteristics and lifestyles. Healthy and unhealthy lifestyles were identified and scored, depending on the individual score (0 and 1 for healthy and unhealthy lifestyles respectively), with a total score between 0 and 6. Based on the sum of the dichotomous scores, the number of unhealthy lifestyles was calculated and divided into three clusters (0-1, 2-3, 4-6). Chi-square test was used to analyze the group difference of lifestyles and demographic characteristics, and multivariate logistic regression was used to explore the associations between demographic characteristics and the clustering status of unhealthy lifestyles.

RESULTS

Among all participants, the prevalence of unhealthy lifestyles was: 86.4% for diet, 14.5% for alcohol, 6.0% for tobacco, 72.2% for PA, 42.3% for ST and 63.9% for SD. Students who were in university, female, lived in country (OR = 1.725, 95% CI: 1.241-2.398), had low number of close friends (1-2: OR = 2.110, 95% CI: 1.428-3.117; 3-5: OR = 1.601, 95% CI: 1.168-2.195), and had moderate family income (OR = 1.771, 95% CI: 1.208-2.596) were more likely to develop unhealthy lifestyles. In total, unhealthy lifestyles remain highly prevalent among Chinese adolescents.

CONCLUSION

In the future, the establishment of an effective public health policy may improve the lifestyle profile of adolescents. Based on the lifestyle characteristics of different populations reported in our findings, lifestyle optimization can be more efficiently integrated into the daily lives of adolescents. Moreover, it is essential to conduct well-designed prospective studies on adolescents.

Self-reported emotional and behavioral problems among school-going adolescents in Nepal-A cross-sectional study

BACKGROUND

Studies on self-reported emotional and behavioral problems (EBPs) among adolescents are still sparse in many low- and middle-income countries. In Nepal, no such studies have been performed on a larger scale, and little is known about self-reported EBPs in the adolescent population.

METHODS

This cross-sectional, school-based study on EBPs included 1904 adolescents aged 11-18 years, enrolled in government and private schools located in 16 districts in Nepal. The Nepali version of the Youth Self Report form was used to assess self-reported EBPs, and the Teacher Report Form was used to assess academic performance. Analysis of variance (ANOVA) was used for gender comparisons on adolescents' EBPs and on academic competence. Multiple regression analysis was done to explore correlates of self-reported EBPs.

RESULTS

The overall prevalence of self-reported EBPs was 14.2%; 15.6% in boys and 12.9% in girls. The mean Total Problems score was 39.27 (standard deviation = 24.16); no gender differences were observed. Boys scored higher on Externalizing Problems and girls scored higher on Internalizing Problems. The effect sizes for gender comparisons were small with Hedges' g ranging from -0.29 to 0.28. Physical illness and negative/traumatic life events were positively correlated with self-reported EBPs, whereas academic performance was negatively correlated. However, the effect sizes were small (η2 < 0.02).

CONCLUSION

This study helps to narrow the knowledge gap on the prevalence, magnitude, and types of self-reported EBPs in Nepali adolescents. It demonstrated an association between self-reported EBPs and academic performance and linked self-reported EBPs to other factors such as negative/traumatic life events and physical illness. The findings might assist health authorities in the planning of mental health services and may also provide valuable background information to clinicians dealing with adolescent mental health problems.

Preschool children's screen time during the COVID-19 pandemic: associations with family characteristics and children's anxiety/withdrawal and approaches to learning

With schools closed due to the COVID-19, many children have been exposed to media devices for learning and entertainment, raising concerns over excessive screen time for young children. The current study examined how preschoolers' screen time was associated with their family characteristics and anxiety/withdrawal and approaches to learning during the COVID-19 pandemic. Participants were 764 caregivers of 3- to 6-year-old children (mean age = 59.07 months, SD = 12.28 months; 403 boys and 361 girls) from nine preschools in Wuhan, China, where the pandemic started. The effects of family characteristics on children's screen time during the pandemic outbreak and the associations between screen time and children's anxiety/withdrawal and approaches to learning were examined using path analysis. The results showed that children who spent more time on interactive screen use (e.g., playing with tablets) showed higher levels of anxiety/withdrawal and fewer positive learning behaviors. Unexpectedly, children who spent more time on noninteractive screen use (e.g., watching TV) showed lower levels of anxiety/withdrawal. Additionally, children's screen time was related to family characteristics: children living in more chaotic families with fewer screen time restrictions spent more time on screen use after the pandemic outbreak. The findings suggest that young children's frequent use of interactive screens, such as tablets and smartphones, might be harmful to their learning and wellbeing during the pandemic. To mitigate the potential negative effects, it is essential to manage the screen time of preschoolers by establishing rules for their interactive screen use and improving the household routines related to the overall screen use.

Examining the relationship between risky sexual behavior and suicidal thoughts among unmarried adolescents in India

Addressing the problem of suicidal thoughts in adolescents requires understanding the associated risk factors. Multiple studies have shown that risky sexual behavior affected the adolescents' psychological health that leads to their suicidal thoughts, behaviors and attempts. This study aimed to identify the association between various risky sexual behaviours and suicidal thoughts among unmarried adolescents in India. We used data collected from 4221 unmarried adolescent boys and 5987 unmarried adolescent girls aged 10-19 years, from the two rounds of the Understanding the Lives of Adolescents and Young Adults (UDAYA) survey. Descriptive analysis was done to observe changes in the selected variables from wave-1 to wave-2. Random effect regression analysis was used to estimate the association of suicidal thoughts among unmarried adolescents with their risky sexual behaviours. The percentage of adolescent boys having suicidal thoughts increased from 1.35% in wave 1 to 2.19% in wave 2. Among adolescent girls, the percentage increased from 2.92% in wave 1 to 5.05% in wave 2. A proportion of 3.26% adolescent boys had more than one sexual partner during wave 1 whereas in wave 2, it rose to 8.71%, while in case of adolescent girls, the estimates only increased from 0.26% at wave 1 to 0.78% at wave 2. Nearly 4.55% boys and 1.37% girls had early sexual debut. Almost five percentage boys were sexually active at wave 1 whereas in wave 2, it rose to 13.56%, while among adolescent girls, the estimates decreased from 1.54% at wave 1 to 1.51% at wave 2. Contraceptive use increased over time among both adolescent boy and girls. Also, a large proportion of adolescent boys reported watching pornography (27.08% at waive 1 and 49.39% at wave 2) compared to adolescent girls (4.46% at wave 1 and 13.10% at wave 2). Adolescents who had more than one sexual partner [Coef: 0.04; p < 0.001], exposed to early sexual debut [Coef; 0.019; p < 0.01], sexually active [Coef: 0.058; p < 0.001] and reported watching pornography [Coef: 0.017; p < 0.001] were more likely to have suicidal thoughts. Adolescent boys and girls with risky sexual behaviors are likely to be at a higher risk of suicidal ideation, and thus, they should be treated with special care and attention by local healthcare practitioners.

Associations between Stressful Life Events and Increased Physical and Psychological Health Risks in Adolescents: A Longitudinal Study

Stressful life events (SLEs) are understood as risk factors for mental and physical health problems, particularly in the vulnerable period of adolescence. Using a longitudinal approach, this study investigated associations between SLE and several negative health outcomes in adolescents. Moderating effects of sociodemographic factors were considered. We analyzed the data of a healthy adolescent sample from the LIFE Child study in Leipzig, Germany (n = 2024, aged 10-18 years). SLEs were measured by a questionnaire, addressing SLEs in the family and the social environment domain. Health-related quality of life (HrQoL), behavioral difficulties and BMI were compared before and after an SLE had occurred. Moderator effects of socioeconomic status (SES), age, and sex were investigated using linear regression models. All considered health parameters had, on average, deteriorated after the occurrence of an SLE in the social environment. Differences in HrQoL before and after an SLE were significantly stronger in girls. Higher SES functioned as a slight protective factor against decreased well-being after an SLE. The findings suggest that SLEs function as risk factors for mental and physical health disadvantages in adolescents. Prevention programs should seek to support adolescents in all age and SES groups affected by SLEs, with a specific focus on girls.

The association of smartphone screen time with sleep problems among adolescents and young adults: cross-sectional findings from India

Background

Although sleep problem is a growing public health issue with the advancement of technology, especially among adolescents and young adults, it received little attention. The study aimed to examine the association of screen time on smartphone with sleep problems among adolescents and young-adults in India.

Methods

We used data from the “Understanding the lives of adolescents and young-adults” (UDAYA, 2018). The effective sample size for the study was 16,292 adolescents and young adults (males-4428 and females-11,864). Descriptive statistics and bivariate analysis with percentages and chi-square test were used to report the preliminary results. Multivariable logistic regression analysis was conducted to examine the association between smartphone screen time and sleep problems, separately for adolescents and young adults.

Results

Nearly 15.6% of males and 23.5% of females had sleep problems in their adolescence in the last 15 days, while these percentage were high among young-adults (18.4% males and 33.24% females). Adolescents [AOR: 1.55; CI: 1.21-1.99] and young adults [AOR: 1.48; CI: 1.24-1.75], who spent more than 2 h on smartphone had higher odds of reporting sleep problems than those who did not use smartphone in the last 24 hours. Adolescent females who used smartphone for less or equal to 2 h and three or more hours respectively, had 2.11 [AOR: 2.11; CI: 1.63-2.73] and 2.94 times [AOR: 2.94; CI: 1.97-4.38] higher odds of reporting sleep problems than adolescent males who did not use smartphones. Additionally, among the young adult females, the odds of sleep problems were 1.66 times [AOR: 1.66; CI: 1.55-2.38] and 2.36 times [AOR: 2.36; CI: 1.59-3.51] greater than the non-users young adult males.

Conclusion

The increased time spent on mobile phones’s screen among adolescents and young-adults, particularly in females is associated with a higher likelihood of reporting sleeping problems. The current findings have important implications for adolescence and young-adults’ mental health programmes. The findings can also be used to further inform how different strategies need to be developed for better sleep outcome during adolescence and young-adults.

Screen time and health issues in Chinese school-aged children and adolescents: a systematic review and meta-analysis

Backgrounds

Many literature reviews summarized relationships between screen time and child health, but they only included a few studies conducted in Chinese children and adolescents. The potential influence of screen time may vary by social context. The current systematic review and meta-analysis aimed to evaluate relationships between screen time and health issues among Chinese school-aged children and adolescents.

Methods

Peer-reviewed articles written in Chinese and English were retrieved from CNKI, Wanfang, PubMed, Embase, and Web of Science from inception to June 2020. The Downs & Black checklist was applied to assess study quality. Meta analyses used random effect models and mixed effects model to calculate pooled adjusted odds ratios and 95% confidence intervals. Heterogeneity, sensitivity, and publication bias were assessed using Q and I² statistics, “one-study removed” analysis, the funnel plot, trim and fill analysis, and classical fail-safe N, respectively.

Results

In total, we identified 252 articles reporting 268 studies with unique samples. These studies investigated relationships between screen time and health issues of adiposity, myopia, psycho-behavioral problems, poor academic performance, cardiometabolic disease risks, sleep disorder, poor physical fitness, musculoskeletal injury, sub-health, and miscellaneous issues of height and pubertal growth, injury, sick leave, and respiratory symptoms. Proportions of studies reporting positive relationships with screen time were lowest in adiposity (50.6%) and higher in myopia (59.2%) and psycho-behavioral problems (81.8%). Other health issues were examined in 10 or less studies, all of which had more than half showing positive relationships. The pooled odds ratio from 19 studies comparing health risks with the screen time cutoff of 2 hours per day was 1.40 (95% CI: 1.31 to 1.50, I² = 85.9%). The pooled effect size was 1.29 (95% CI: 1.20 to 1.39) after trimming 7 studies for publication bias adjustments.

Conclusions

Findings exclusively generated from Chinese school-aged children and adolescents resonate those mainly from western countries. Evidence suggests that higher levels of screen time are related with greater risks of various health issues, although the relationships appear to be weak and intertwined with other confounding factors. Future studies need to investigate health-specific dose effects and mechanisms of screen time.

Supplementary information

The online version contains supplementary material available at 10.1186/s12889-022-13155-3.

Association between Leisure Screen Time and Emotional and Behavioral Problems in Spanish Children

OBJECTIVE

To assess the relation between leisure screen time and emotional and behavioral problems in Spanish children aged 4-14 years.

STUDY DESIGN

This cross-sectional study used a representative sample of children aged 4-14 years included in the 2017 Spanish National Health Survey (n = 4073). Emotional and behavioral problems of children were assessed through the parent-report Strengths and Difficulties Questionnaire. Daily leisure screen time in minutes was categorized as 0-59, 60-119, 120-179, and ≥180. We calculated adjusted prevalence ratios (aPR) and their 95% CIs of being at risk of developing emotional and behavioral problems. Associations were adjusted for potential confounding variables.

RESULTS

Children spending 180 minutes or more of daily leisure screen time compared with children spending less than 1 hour were more likely to be at risk of developing emotional and behavioral problems: aPR_≥180: 2.19 (95% CI 1.53-3.14), emotional symptomology: aPR_≥180: 2.09 (95% CI 1.37-3.18), conduct problems aPR_≥180: 1.85 (95% CI 1.34-2.54), peer problems aPR_≥180: 1.78 (95% CI 1.15-2.75), and to behave less prosocially: aPR_≥180: 2.20 (95% CI 1.43-3.37).

CONCLUSIONS

We have found significant associations between daily leisure screen time and emotional and behavioral problems in Spanish children between 6 and 14 years of age. However, these findings should be confirmed in cohort studies, so institutions might consider including screen time as a new risk factor for children.

Factors Correlating with the Emotional and Behavioral Problems among Adolescents with Legal Problems

BACKGROUND: The prevalence of emotional and behavioral problems (EBP) among adolescents (12–18 years) in Indonesia is 28.4%. These problems are related to age, sex, family economic level, father’s education, peer relationships, psychosocial skills, and family mental health status. However, factors related to EBPs among adolescents who are dealing with law cases have not been widely reported. AIM: The purpose of this study is to find out factors correlating with the EBPs among adolescents with legal problems. MATERIALS AND METHODS: A cross-sectional design was used in this study. Fifty-nine adolescents with legal problems who were sheltered at the Social Protection and Rehabilitation Centre for Adolescents (SPRCA) and the Guidance Institution for Children (GIC) served respondents. Strengths and Difficulties Questionnaires were used to measure the EBP among adolescents. The Pearson Product Moment and linear regressions were used to analyze the data. RESULTS: The prevalence of the EBP among adolescents with legal problems at SPRCA and GIC is 67.8%. The correlations of emotional problems, behavioral problems, hyperactivity, and peer problems with the EBP among adolescents with legal problems are 67.8%, 64.4%, 13.6%, and 57.6%, respectively. Age and psychosocial skills have an effect of 15.7% on the EBP among adolescents. CONCLUSION: Age and psychosocial skills correlate with the EBP among adolescents with legal problems at the SPRCA and GIC.

The social and psychological health of children is associated with Mediterranean diet adherence items, cardiorespiratory fitness, and lifestyle

BACKGROUND

Mediterranean diet (MD) adherence, physical activity (PA) patterns, and physical fitness are associated with physical, social, and psychological health in children.

OBJECTIVE

the purpose of this study was to determine the association of items of MD adherence, fitness components, and lifestyle with psychological and social health in Chilean schoolchildren.

MATERIAL AND METHODS

this cross-sectional study included 615 schoolchildren, both girls (n = 271, 11.7 ± 1.00 years old) and boys (n = 344, 11.8 ± 1.1 years old). Anthropometric parameters, fitness components, lifestyle, health-related quality of life (HRQoL), and self-esteem were measured.

RESULTS

HRQoL showed an association with cardiorespiratory fitness (β: 0.12, p < 0.001) and PA (β: 0.32, p = 0.023). Self-esteem was inversely associated with screen time (β: -1.35, p < 0.001). Moreover, social health presented a positive association with PA after school (β: 0.06, p = 0.037). In relation to MD adherence items, HRQoL was linked to the items "Takes a fruit or fruit juice every day" (β: 1.93, p = 0.004) and "Consumes fresh or cooked vegetables ˃ 1 time/day" (β: 1.12, p = 0.018). Self-esteem was associated to "Consumes a dairy product ˃ 1 time/day" (β: 3.30, p = 0.030). Social health was inversely related to "Eats at a fast food restaurant ≥ 1 time/week" (β: -0.26, p = 0.003) and positively to "Consumes pasta or rice almost every day" (β: 0.35, p = 0.049).

CONCLUSION

MD adherence items, fitness, and lifestyle were linked to psychological and social health, therefore it is necessary to develop preventive strategies for schoolchildren to change in a positive way these modifiable lifestyle behaviors.

Pandemics and marketing: insights, impacts, and research opportunities

Pandemics have been an unfortunate but consistent facet of human existence over centuries, threatening lives as well as livelihoods globally. Disconcertingly, their frequency persists, with four "major" pandemics disrupting the planet in the last 65 years and more expected in the future. While many of the economic and health consequences of pandemics are well-documented, their marketing implications are less understood. Addressing this gap, we develop a broad, conceptual framework to highlight the characteristics and impacts of pandemics as they relate to marketing. We first identify four macro-level forces that characterize pandemics and highlight their marketing implications. Next, using the 7P marketing mix model as the organizing structure, we discuss these implications at a micro-level and identify a set of research questions to stimulate further inquiry, not only to generate deeper insights pertaining to pandemics' marketing implications but also to envision new developments in these areas. Finally, we identify pandemics' disproportionate impacts on and implications for some industry sectors, including healthcare, retail, education, hospitality, and tourism.

Associations Among Screen Time, Sleep Duration and Depressive Symptoms Among Chinese Adolescents

OBJECTIVES

Relatively few studies have explored the inter-relationship between screen time (ST), sleep duration and depressive symptoms. The study herein sought to determine (1) the relationships between ST, sleep duration and depressive symptoms among Chinese adolescents; (2) whether sleep duration mediates the relationships between ST and depressive symptoms.

METHODS

1^st grade students (n=1,976) from ten high schools in Guangzhou, China were invited through cluster sampling between January and April 2019. Self-reported ST with electronic devices and Internet, sleep duration, and The Center for Epidemiology Scale for Depression (CES-D) score were collected. Generalized mixed linear models and mediation analyses were conducted.

RESULTS

There were 1,956 self-reported questionnaires received (response rate: 98.99%). Approximately 25% (471/1,929 for Internet use, 399/1,928 for electronic device) of the total sample reported ST >2 hours/day. Approximately 8.9% (169/1,894) reported a CES-D score >28. Longer ST with electronic devices (estimate=0.52, 95%CI: 0.24~0.80), Internet usage (estimate=0.82, 95%CI: 0.53~1.11) were positively associated with depressive symptoms, while less sleep (estimate=-1.85, 95%CI: -2.27~-1.43) was negatively associated with depressive symptoms. There is significant indirect effect of electronic device usage on depressive symptoms through sleep duration (indirect effect=0.08, 95%CI: 0.01~0.15).

LIMITATIONS

This study only included school students from Guangzhou. Causal relationship cannot be inferred by this cross-sectional design.

CONCLUSIONS

ST and sleep duration were significantly associated with depressive symptoms severity. The indirect effect of sleep duration suggests a possible mechanism of the association between ST and depressive symptoms. Future interventions to manage depressive symptoms should target sleep time and decrease ST among adolescents.