Self-Perception and Self-Acceptance Are Related to Unhealthy Weight Control Behaviors in Catalan Adolescents: A Cross-Sectional Study

Internet Addiction and Psychological Distress: Can Social Networking Site Addiction Affect Body Uneasiness Across Gender? A Mediation Model

Introduction

The Internet, with its unlimited information, revolutionary communication capabilities, and innovative potential to expand knowledge, is ubiquitous throughout the world, but it also has significant implications for users' mental health. Given the not yet clearly defined and distinguishable nosographic categories of online addiction and the resulting difficulties in describing the impact on users' mental health, the present cross-sectional study aimed to gain new insights into the relationship between Internet addiction (especially social networking site [SNS] addiction), psychological distress, and physical discomfort, as well as gender differences in impact among users.

Method

A sample of 583 Italian speakers (50.8% males; 48.7% females) with a mean age of 30.96 (SD = 12.12) completed an online survey in July 2021. A set of psychometric self-report instruments was administered to assess the study variables. Mediation analyses were performed for both the whole sample and across genders.

Results

The study found that men exhibited higher levels of Internet addiction and craving than women, but no differences were found for SNS addiction. Furthermore, indicators of psychological distress (i.e., anxiety, depression, stress, loneliness, insomnia, and self-esteem) mediated the association between SNS addiction and body uneasiness, with slight differences across genders.

Conclusion

This paper contributes to the existing literature on online addictive behaviors by also highlighting gender differences. The findings underscore the need for educational experiences that can prevent problematic use of the Internet and SNSs.

Global Prevalence of Adolescent Use of Nonprescription Weight-Loss Products: A Systematic Review and Meta-Analysis

Importance

Use of nonprescribed weight-loss products in adolescents is a public health concern that is associated with negative physical and psychological consequences. However, the prevalence of nonprescribed weight-loss product use in adolescents is unknown.

Objective

To determine the global prevalence of nonprescription weight-loss product use in children and adolescents.

Data Sources

Four databases, including MEDLINE, PsycINFO, CINAHL (Cumulative Index of Nursing and Allied Health), and EMBASE, were searched for quantitative studies that reported prevalence data on use of nonprescription weight-loss products with no restrictions on publication date. The search was performed December 1, 2020, and updated March 6, 2023.

Study Selection

Studies were included in the meta-analysis if they reported the prevalence of weight-loss product use, were published in English, and included individuals 18 years or younger.

Data Extraction and Synthesis

Data extraction was completed by 2 independent reviewers. Data analysis determined the overall pooled proportion of weight-loss product use in total and during the past week, past 30 days, past year, or lifetime. Inverse variance heterogeneity effect models were used.

Main Outcomes and Measures

The main outcome measure was the prevalence of nonprescription weight-loss product use in adolescents for all included studies and over the past week, past month, past year, or lifetime. Subgroup analysis included separation of groups by sex, specific weight-loss product types, geographical location, and study publication time.

Results

A total of 90 articles (604 552 unique participants) were included in the meta-analysis. Of these, 50 studies (56%) were from North America. The reported prevalence of weight-loss product use in adolescents was 5.5% (96% CI, 5.5%-5.6%) overall. When identifying use of weight-loss products in the general population, prevalence was 2.0% (95% CI, 1.9%-2.1%) in the past week, 4.4% (95% CI, 4.3%-4.5%) in the past month, 6.2% (95% CI, 6.1%-6.3%) in the past year, and 8.9% (95% CI, 8.6%-9.2%) in their lifetime. Use of weight-loss products was higher among girls than boys.

Conclusions and Relevance

This meta-analysis found that use of weight-loss products occurs at high levels in adolescents, especially girls. These findings suggest that, given the ineffectiveness of these products for weight loss coupled with their harmful long-term health consequences, interventions are required to reduce use of weight-loss products in this group.

Positive body image: a qualitative study on the successful experiences of adolescents, teachers and parents

Purpose Body image encompasses body-related self-perceptions and personal attitudes. Dissatisfaction with body image during the early stages of adolescence is negatively related to self-esteem and other health problems. A few publications focused on positive body image and directly related to the experiences and interactions of adolescents themselves. To explore positive body image in adolescents and describe the familial and educational factors that contribute to its development.Methods A qualitative study was conducted. Purposive sampling was used, and 9 adolescents, 6 families, and 8 teachers participated in semi-structured interviews, which were then theme analyzed. Results Self-care, body acceptance, confronting messages that attack body image, and the influence of social media have been identified as emerging themes in adolescents' positive body image experiences. Therefore, the pubertal period, family values, fostering, and educational actions as well as media literacy were identified as factors promoting self-esteem and positive body image in the family and educational environment. Conclusions Their parents also expressed aspects such as those that contribute to the development of healthy self-esteem, confidence, and positive body image. Alternatively, the teachers indicated educational activities to work on self-image and self-esteem when faced with situations of concern in the classroom.

Differences in Perceptual and Attitudinal Body Image Between White and African-American Adults Matched for Sex, Age, and Body Composition

PURPOSE

The purpose of this study was to evaluate the differences in perceptual and attitudinal body image between White and African-American males and females matched for sex, age, BMI, and other body composition components using a combination of 3-dimensional mobile digital imaging analysis (DIA) and the Multidimensional Body-Self Relations Questionnaire-Appearance Scale (MBSRQ-AS).

METHODS

One-hundred non-Hispanic White (n=50) and non-Hispanic African-American (n=50) adults (M=34, F=66) matched for sex, age, BMI, and body composition components completed this cross-sectional study. Participants underwent several anthropometric assessments, completed the MBSRQ-AS, and rated their perceived appearance, ideal appearance, and the appearance they believed a partner would find societally attractive using a state of the art mobile 3-dimensional DIA produced using broad developmental populations. Body image distortion was measured as the perceived minus actual appearance, and body image dissatisfaction was defined as the ideal appearance and appearance a partner would find attractive minus the perceived appearance.

RESULTS

Using the DIA, only African-American females demonstrated significant body image distortion (p<0.001); reporting perceived appearances significantly lower their than their actual. Further, AA females demonstrated significantly larger differences between their ideal and perceived appearance (p=0.009), perceived larger bodies as more attractive to a potential partner (p=0.009), and reported higher ratings of appearance evaluation (p=0.001) and body area satisfaction (p=0.011) compared to White females.

CONCLUSIONS

After accounting for all anthropometric determinants of body image, perceptual and attitudinal body image differs between White and African-American adults with differences supporting larger body size acceptance for African-American individuals, particularly African-American females.

Sociodemographic factors associated with weight perception of adolescents: A systematic review and meta-analysis

PURPOSE

To systematically assess the main sociodemographic factors associated with weight perception of adolescents.

METHODOLOGY

All studies related to adolescents' weight perception were retrieved from seven databases from January 2001 to July 2022. A total of 13 Medical Subject Headings (MeSH) and keywords were used to identify qualified studies, and reference lists included in the retrieved studies were manually searched to identify potentially relevant publications. Two evaluators independently assessed the eligibility and extracted data of each study. Agency for Healthcare Research and Quality (AHRQ) risk of bias evaluation tool was used to evaluate the quality and bias risk of included studies. RevMan (version: 5.3) software was used to conduct heterogeneity test and meta-analysis.

RESULTS

A total of 12 studies, published between 2003 and 2020, were selected and included in the systematic review and meta-analysis, consisting of 325,367 adolescents from five countries. The risk of bias evaluation indicated that risk of bias was low in five studies and moderate in seven studies. The results of meta-analysis showed that there were no differences in the weight perception accuracy among adolescents under different gender (odds ratio [OR] = 1.00, 95% confidence interval [CI]: 0.88-1.15, p = 0.940), place of residence (OR = 0.98, 95% CI: 0.83-1.16, p = 0.800), grade (OR = 1.73, 95% CI: 0.68-4.42, p = 0.250), and family economic level (OR = 0.94, 95% CI: 0.86-1.02, p = 0.140). Egger's linear regression showed that there was no significant publication bias in the primary analysis.

CONCLUSIONS

The current analysis indicates that gender, place of residence, grade, and family economic level were not identified as influencing factors for adolescents' weight perception accuracy. Due to the limitations of the review and included studies, more robust trials are warranted in different social and economic environments to confirm our findings.

Translation, Cross-Cultural Adaptation, and Psychometric Validation of the Positive Body Image among Adolescents Scale (PBIAS) into Spanish and Catalan

The Positive Body Image among Adolescents Scale (PBIAS) explores the factors that bolster and interfere with developing and maintaining a positive body image during adolescence. The aim of this study was to translate, adapt, and validate the PBIAS into Spanish and Catalan. A cross-sectional study was conducted for the instrument's translation, cross-cultural adaptation, and psychometric validation. A process of translation, back-translation, expert consultation, and piloting was followed. The reliability and statistical validity were evaluated. The Cronbach's alpha was 0.95 in both the Spanish and Catalan versions. Pearson's correlation coefficients were statistically significant (r > 0.087) for all items analyzed. The resulting values of the Spanish and Catalan versions indicate a good level of concordance (p < 0.001) with the original questionnaire, the comparative fit index being 0.914 and 0.913, the Tucker-Lewis index being 0.893 and 0.892, the root mean square error of approximation being 1.31 and 1.28, and the standardized root mean square residual being 0.051 and 0.060, respectively. The instrument presents a good level of internal consistency, a high level of reliability, and statistical validity compared to the original instrument. The PBIAS in Spanish and Catalan can be a useful assessment instrument for educators and health professionals in the context of adolescent mental health literacy. This work contributes to the Sustainable Development Goals (Goal 3) of the United Nations 2030 Agenda.