András Költő, Kristina Winter, Rachael Maloney, Louise Lunney, Christiana Nicolaou, Alina Cosma, Margreet de Looze, Colette Kelly, Gina Martin
{"title":"Cross-National Trends in Early Sexual Initiation Among 15-Year-Old Adolescents, 2002-2022.","authors":"András Költő, Kristina Winter, Rachael Maloney, Louise Lunney, Christiana Nicolaou, Alina Cosma, Margreet de Looze, Colette Kelly, Gina Martin","doi":"10.3389/ijph.2025.1607711","DOIUrl":"10.3389/ijph.2025.1607711","url":null,"abstract":"<p><strong>Objectives: </strong>We examined how the proportion of adolescents who engaged in early sexual intercourse (before the age of 14) changed between 2002 and 2022 across 37 countries.</p><p><strong>Methods: </strong>Data of 15-year-old adolescents participating in the 2002, 2006, 2010, 2014, 2018, and 2022 survey rounds of the Health Behaviour in School-aged Children study were analysed (<i>N</i> = 312,702). We used uni- and multivariate multilevel binary logistic regression models to test whether rates of early sexual initiation changed over time. Country, gender, family affluence, parental support and the clustering effect of school were incorporated in the statistical models; linearity was tested by cubic and quadratic terms in the multivariate models.</p><p><strong>Results: </strong>A significant but very small decline over time was found in early sexual initiation across survey years. Girls and less affluent adolescents had lower odds of early initiation. Parental support (and its interaction with time) also had a significant but small protective role.</p><p><strong>Conclusion: </strong>Despite a small decrease over time, still 4% of participants reported early sexual initiation in 2022. Concerted and sustained efforts are needed to support adolescent sexual health.</p>","PeriodicalId":14322,"journal":{"name":"International Journal of Public Health","volume":"70 ","pages":"1607711"},"PeriodicalIF":2.6,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11932834/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143709563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Investigation of Physical Activity Levels in the Population of Switzerland: Association With Lifestyle and Sociodemographic Factors.","authors":"Florence D Berger, Flurina Suter, Sabine Rohrmann","doi":"10.3389/ijph.2025.1608010","DOIUrl":"10.3389/ijph.2025.1608010","url":null,"abstract":"<p><strong>Objective: </strong>The aim of the present study was to investigate physical activity levels of the population of Switzerland and the association of lifestyle and sociodemographic factors with physical activity levels.</p><p><strong>Methods: </strong>The association of physical activity with lifestyle and sociodemographic factors was analyzed by fitting ordinal logistic regression models, using the data of 2057 participants from the National Nutrition Survey menuCH.</p><p><strong>Results: </strong>The physical activity level of the population of Switzerland was high: less than 10% of the participants are not physically active. Factors associated with lower physical activity levels, were the sociodemographic variables, middle age [age 30-44: odds ratio = 0.53 (95% confidence interval 0.37, 0.77) and age 45-59: 0.60 (0.41, 0.89)] and higher education [tertiary level: 0.50 (0.29, 0.86)] as well as the lifestyle factors higher body mass index [obesity: 0.64 (0.45, 0.90)] and poor self-reported health status [0.68 (0.50, 0.93)].</p><p><strong>Conclusion: </strong>To improve the physical activity level of the population of Switzerland tailored public health strategies are required that address specific groups, such as individuals in the middle age group or obese individuals.</p>","PeriodicalId":14322,"journal":{"name":"International Journal of Public Health","volume":"70 ","pages":"1608010"},"PeriodicalIF":2.6,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11932833/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143709622","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Keisyanne Araujo-Moura, Letícia Souza, Tiago Almeida de Oliveira, Mateus Silva Rocha, Augusto César Ferreira De Moraes, Alexandre Chiavegatto Filho
{"title":"Prediction of Hypertension in the Pediatric Population Using Machine Learning and Transfer Learning: A Multicentric Analysis of the SAYCARE Study.","authors":"Keisyanne Araujo-Moura, Letícia Souza, Tiago Almeida de Oliveira, Mateus Silva Rocha, Augusto César Ferreira De Moraes, Alexandre Chiavegatto Filho","doi":"10.3389/ijph.2025.1607944","DOIUrl":"10.3389/ijph.2025.1607944","url":null,"abstract":"<p><strong>Objective: </strong>To develop a machine learning (ML) model utilizing transfer learning (TL) techniques to predict hypertension in children and adolescents across South America.</p><p><strong>Methods: </strong>Data from two cohorts (children and adolescents) in seven South American cities were analyzed. A TL strategy was implemented by transferring knowledge from a CatBoost model trained on the children's sample and adapting it to the adolescent sample. Model performance was evaluated using standard metrics.</p><p><strong>Results: </strong>Among children, the prevalence of normal blood pressure was 88.9% (301 participants), while 14.1% (50 participants) had elevated blood pressure (EBP). In the adolescent group, the prevalence of normal blood pressure was 92.5% (284 participants), with 7.5% (23 participants) presenting with EBP. Random Forest, XGBoost, and LightGBM achieved high accuracy (0.90) for children, with XGBoost and LightGBM demonstrating superior recall (0.50) and AUC-ROC (0.74). For adolescents, models without TL showed poor performance, with accuracy and recall values remaining low and AUC-ROC ranging from 0.46 to 0.56. After applying TL, model performance improved significantly, with CatBoost achieving an AUC-ROC of 0.82, accuracy of 1.0, and recall of 0.18.</p><p><strong>Conclusion: </strong>Soft drinks, filled cookies, and chips were key dietary predictors of elevated blood pressure, with higher intake in adolescents. Machine learning with transfer learning effectively identified these risks, emphasizing the need for early dietary interventions to prevent hypertension and support cardiovascular health in pediatric populations.</p>","PeriodicalId":14322,"journal":{"name":"International Journal of Public Health","volume":"70 ","pages":"1607944"},"PeriodicalIF":2.6,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11937837/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143719324","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Green Longevity: Climate Resilience, Adaptation, and Action for Older Adults.","authors":"Chengmeng Zhang","doi":"10.3389/ijph.2025.1607775","DOIUrl":"10.3389/ijph.2025.1607775","url":null,"abstract":"","PeriodicalId":14322,"journal":{"name":"International Journal of Public Health","volume":"70 ","pages":"1607775"},"PeriodicalIF":2.6,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11930659/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143700411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Children in Crisis: Addressing Nutrition Amid Conflict and Economic Hardship in Lebanon.","authors":"Lamis Jomaa, Krystel Ouaijan, Lara Nasreddine","doi":"10.3389/ijph.2025.1608412","DOIUrl":"10.3389/ijph.2025.1608412","url":null,"abstract":"","PeriodicalId":14322,"journal":{"name":"International Journal of Public Health","volume":"70 ","pages":"1608412"},"PeriodicalIF":2.6,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11925704/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143692025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Milkah N Wanjohi, Gershim Asiki, Calistus Wilunda, Michelle Holdsworth, Rebecca Pradeilles, Linda Simon Paulo, Nelson Langat, Dickson A Amugsi, Simon Kimenju, Elizabeth W Kimani-Murage, Kerstin Klipstein-Grobusch
{"title":"Ultra-Processed Food Consumption Is Associated With Poor Diet Quality and Nutrient Intake Among Adolescents in Urban Slums, Kenya.","authors":"Milkah N Wanjohi, Gershim Asiki, Calistus Wilunda, Michelle Holdsworth, Rebecca Pradeilles, Linda Simon Paulo, Nelson Langat, Dickson A Amugsi, Simon Kimenju, Elizabeth W Kimani-Murage, Kerstin Klipstein-Grobusch","doi":"10.3389/ijph.2024.1607891","DOIUrl":"10.3389/ijph.2024.1607891","url":null,"abstract":"<p><strong>Objectives: </strong>To assess the caloric contribution of ultra-processed foods (UPFs), factors associated with UPFs energy intake and investigate the relationship between UPFs energy intake, diet quality and nutrient intake among adolescents in urban slums, Kenya.</p><p><strong>Methods: </strong>A cross-sectional household study amongst adolescents (10-19 years, N = 621) collected socio-demographic and dietary intake data. Global Diet Quality Score (GDQS); mean and percentage total energy intake (%TEI) from UPFs; and nutrient intakes were computed. Regression analysis assessed the factors associated with UPFs energy intake, and the association between %TEI from UPFs and diet quality.</p><p><strong>Results: </strong>Mean daily energy intake was 1,604 kcal (±550), 25.2% from UPFs. Higher leisure screen time (≥2 h/day) [OR = 1.9 (1.2-3.1)] was associated with UPFs energy intake. Household wealth index (quintile five vs. one) [OR = 2.6 (1.3-6.0)] was associated with non-UPFs energy intake. UPFs (%TEI) was inversely associated with GDQS score (quartile four vs. one) [β = -2.9 (-3.4 to -2.1)]. Adolescents with higher %TEI from UPFs (quartile four) had highest total energy, total fat and saturated fat; and lowest protein, fibre, iron, calcium and zinc intake.</p><p><strong>Conclusion: </strong>UPFs contribute substantially to adolescents' energy intake and are linked to poor diet quality and nutrient intake.</p>","PeriodicalId":14322,"journal":{"name":"International Journal of Public Health","volume":"69 ","pages":"1607891"},"PeriodicalIF":2.6,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11919627/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143663171","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Public Health Workforce Professional Development Analysis: A Human-Systems Integration for Healthy Communities.","authors":"Bashkin Osnat, Baron-Epel Orna, Bochenek Tomasz, Czabanowska Kasia, Davidovitch Nadav, De Nooijer Jascha, Dopelt Keren, Duplaga Mariusz, Harrington Janas, Leighton Lore, Levine Hagai, MacLeod Fiona, Malowany Maureen, Mor Zohar, Neumark Yehuda, Okenwa-Emegwa Leah, Otok Robert, Paillard-Borg Stephanie, Peled-Raz Maya, Tulchinsky Theodore, Zelber-Sagi Shira, Barach Paul","doi":"10.3389/ijph.2025.1608006","DOIUrl":"10.3389/ijph.2025.1608006","url":null,"abstract":"<p><strong>Objectives: </strong>The healthcare landscape is challenged by emerging and severe public health threats, and fast shifting priorities. There is an urgent need to build public health workforce capacity to enable rapid adaptation and effective responses to these threats. We outline a whole system's learning approach for analyzing public health systems in collaboration with public health leaders.</p><p><strong>Methods: </strong>The project included: i) a system's analysis involving a cross-sectional mixed methods approach including a quantitative investigation, interviews and focus groups of leading representatives and students from five higher education institutions providing public health training, 49 managers, and 31 stakeholders from lead public health organizations; ii) develop and implement training interventions, involving human factors tools for evaluating and developing actionable solutions.</p><p><strong>Results: </strong>We developed and implemented three interventions: 1) An online user interface for public health professional development and collaboration; 2) A Public Health Leadership Academy; and 3) A video outreach to key stakeholders and communities using studies.</p><p><strong>Conclusion: </strong>A holistic perspective incorporating human factors, and a systems approach provided a comprehensive understanding and approch towards the public health workforce while identifying leverage points for durable improvement.</p>","PeriodicalId":14322,"journal":{"name":"International Journal of Public Health","volume":"70 ","pages":"1608006"},"PeriodicalIF":2.6,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11905898/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143624660","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Implications of President Trump's Second Term Executive Orders on Global and Public Health.","authors":"Keita Wagatsuma","doi":"10.3389/ijph.2025.1608402","DOIUrl":"10.3389/ijph.2025.1608402","url":null,"abstract":"","PeriodicalId":14322,"journal":{"name":"International Journal of Public Health","volume":"70 ","pages":"1608402"},"PeriodicalIF":2.6,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11891008/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143596940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A Comparative Study on the Consumption Patterns of Processed Food Among Individuals With and Without Type 2 Diabetes.","authors":"Anu Mahajan, Aditi Deshmane, Arti Muley","doi":"10.3389/ijph.2025.1607931","DOIUrl":"10.3389/ijph.2025.1607931","url":null,"abstract":"<p><strong>Objective: </strong>The study aims to analyse the eating patterns and consumption of ultra-processed food (UPFs) among individuals with and without diabetes.</p><p><strong>Methods: </strong>A comparative cross-sectional study was conducted across Pune, India, with 100 individuals with type 2 diabetes (T2D) and 208 without diabetes. A detailed FFQ (Food Frequency Questionnaire) developed by NOVA-UPF Screener with 33 ultra-processed food items was used to evaluate the consumption patterns of UPF.</p><p><strong>Results: </strong>Most of the participants with diabetes have a habit of eating breakfast daily (68%), prefer lunch from home (72%), and about 20% avoid eating at a restaurant. While only 45.7% of the participants without diabetes have breakfast daily, and 88.4% prefer to eat lunch outside rather than homemade food. Comparative analysis shows that all 33 UPFs were consumed significantly less by individuals with diabetes than those without diabetes (p < 0.001).</p><p><strong>Conclusion: </strong>The reduced intake of UPFs highlights greater dietary caution among individuals with T2D. Therefore, these findings emphasize the importance of promoting healthy eating habits and limiting UPF consumption among the general population to prevent the onset of metabolic conditions like diabetes.</p>","PeriodicalId":14322,"journal":{"name":"International Journal of Public Health","volume":"70 ","pages":"1607931"},"PeriodicalIF":2.6,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11891010/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143596935","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Michal Molcho, Sophie D Walsh, Nathan King, William Pickett, Peter D Donnelly, Alina Cosma, Frank J Elgar, Kwok Ng, Lilly Augustine, Marta Malinowska-Cieślik, Ylva Bjereld, Wendy Craig
{"title":"Trends in Indicators of Violence Among Adolescents in Europe and North America 1994-2022.","authors":"Michal Molcho, Sophie D Walsh, Nathan King, William Pickett, Peter D Donnelly, Alina Cosma, Frank J Elgar, Kwok Ng, Lilly Augustine, Marta Malinowska-Cieślik, Ylva Bjereld, Wendy Craig","doi":"10.3389/ijph.2025.1607654","DOIUrl":"10.3389/ijph.2025.1607654","url":null,"abstract":"<p><strong>Objectives: </strong>To describe age and gender specific time trends in adolescent violence across 19 countries over 28 years.</p><p><strong>Methods: </strong>The paper presents analysis of eight cycles of the Health Behaviour in School-aged Children (HBSC) Study from 1994-2022, involving 789,531 children aged 11, 13, and 15. Indicators of violence included physical fighting, school bullying and cyberbullying (from 2018). Log-binomial regression models were used to test for linear temporal trends, with Generalized Estimating Equations used to account for clustering by country.</p><p><strong>Results: </strong>School bullying perpetration and victimization declined over time in each age/gender group in most countries. Similar declines were reported for frequent physical fighting among boys (all ages) and girls (age 15 only). The prevalence of violent behaviour was almost universally higher in boys in the early cycles than in girls, but this gender difference attenuated over time. For cyberbullying, significant increases were observed since 2018 in all groups except age 15 girls in most countries.</p><p><strong>Conclusion: </strong>This analysis of a large cross-national dataset suggests a decline in traditional forms of adolescent violence. However, the increases in cyberbullying warrant further monitoring.</p>","PeriodicalId":14322,"journal":{"name":"International Journal of Public Health","volume":"70 ","pages":"1607654"},"PeriodicalIF":2.6,"publicationDate":"2025-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11891013/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143596941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}