BMC Public Health最新文献

{"title":"Depression and anxiety symptoms and associated factors among community residents in Shenzhen, China: a cross-sectional study.","authors":"Haoyu Hua, Kongjun Yang, Zhaoguo Wei, Wenxuan Hu, Shan Jin, Jianhong Wang","doi":"10.1186/s12889-025-23241-x","DOIUrl":"10.1186/s12889-025-23241-x","url":null,"abstract":"<p><strong>Background: </strong>Depressive disorders and anxiety disorders are the most common psychiatric disorders. This study aims to investigate and assess the symptoms of depression and anxiety in general community residents in Shenzhen, China, and to explore their associated factors.</p><p><strong>Methods: </strong>A cross-sectional study was conducted with 1911 permanent community residents from three districts in Shenzhen as subjects. A self-designed structured questionnaire was used to collect basic demographic characteristics of the participants. Depression and anxiety symptoms were collected using Patient Health Questionnaire-9 (PHQ-9) and Generalized Anxiety Disorder-7 (GAD-7), respectively. Univariate and multivariate linear regression analyses were performed using SPSS to identify correlates of depression and anxiety symptoms.</p><p><strong>Results: </strong>The detection rates of depression and anxiety symptoms among community residents in Shenzhen were 32.6% and 23.5%, respectively. Insomnia and neuroticism were the strongest predictors of depression and anxiety symptoms, and factors such as self-blame, growing up family environment stress, female gender, and alcohol consumption consistently predicted higher levels of depressive and anxiety symptoms. In addition, depressive symptoms among community residents in Shenzhen were associated with problem solving, life events, lie scale, and marital status. Negative emotions, withdrawal, individual exposure to abusive events, positive coping, negative coping, occupation, and frequency of alcohol consumption in the past 12 months, on the other hand, had an impact on anxiety symptoms.</p><p><strong>Conclusions: </strong>The results of the study demonstrate the overall profile of depression and anxiety among community residents in Shenzhen and discuss the factors associated with their depression and anxiety symptoms. This may be instructive for providing accessible and targeted support and interventions for depression and anxiety symptoms among community residents in Shenzhen to improve their mental health and well-being in life, as well as for other cities undergoing similar rapid changes.</p>","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"2148"},"PeriodicalIF":3.5,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12150556/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144265213","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Knowledge gaps and socio-demographic disparities in dengue awareness among high-risk communities in Tanzania: a cross-sectional study.","authors":"Clement N Mweya","doi":"10.1186/s12889-025-22379-y","DOIUrl":"10.1186/s12889-025-22379-y","url":null,"abstract":"<p><strong>Background: </strong>Community knowledge plays a crucial role in preventing dengue outbreaks. This study assessed dengue fever awareness and knowledge gaps among Tanzanians to inform prevention efforts.</p><p><strong>Methods: </strong>A cross-sectional community-based study was conducted from April to June 2022 across Kyela, Bahi and Ngorongoro districts. Data on socio-demographics, dengue knowledge, transmission, symptoms and prevention were collected using questionnaires from 482 participants aged ≥ 18 years. Descriptive statistics, χ2 and logistic regression analysis examined knowledge levels in relation to socio-demographic factors.</p><p><strong>Results: </strong>A majority of participants (76.6%) reported prior knowledge of dengue fever. Awareness of mosquito bites as a transmission mode was relatively high (68.8%), but specific knowledge of Aedes mosquitoes as vectors was significantly lower at only 23.4% (χ2 = 132.50, P < 0.05). Findings indicated a fair knowledge of vector biting frequency (52.5%) and breeding sites (57.9%). However, most demonstrated good knowledge of symptoms (52.3%) and prevention (66.4%). Knowledge levels differed across demographic groups. For instance, women were less likely than men to report knowledge of vector bite frequency (AOR 0.41, 95% CI 0.22-0.76).</p><p><strong>Conclusions: </strong>There are critical dengue knowledge gaps among communities at high epidemic risk regarding vectors, transmission dynamics and breeding ecology. Targeted educational interventions considering disparities across socio-demographics are urgently required to raise awareness, improve participation in integrated control programs and empower at-risk populations to mitigate outbreaks.</p>","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"2156"},"PeriodicalIF":3.5,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12150442/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144265220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Peer education intervention reduced sexually transmitted infections among male Tajik labor migrants who inject drugs: results of a cluster-randomized controlled trial.","authors":"Mary Ellen Mackesy-Amiti, Judith A Levy, Casey M Luc, Jonbek Jonbekov","doi":"10.1186/s12889-025-23387-8","DOIUrl":"10.1186/s12889-025-23387-8","url":null,"abstract":"<p><strong>Background: </strong>Male Tajik labour migrants who inject drugs in Russia are at high risk for HIV and other sexually transmitted infections. The \"Migrants' Approached Self-Learning Intervention in HIV/AIDS for Tajiks\" (MASLIHAT) trained Tajik labour migrants who inject drugs in Moscow as peer educators (PEs) in delivering HIV prevention information and promoting risk-reduction norms and practices within their diaspora social networks while reducing their own HIV risk. Our earlier analysis of a cluster-randomized controlled trial testing the intervention's effects found that MASLIHAT reduced condomless sex, condomless sex with female sex workers, and sex with multiple sexual partners. This analysis draws on data from this parent study to investigate if these observed changes in safer sex translated into fewer reported STIs over 12 months.</p><p><strong>Methods: </strong>Male Tajik migrant workers in Moscow who inject drugs (n = 140) were recruited from construction worksites, local bazaars, and diaspora organizations serving labor migrants. Participants were assigned as PEs to either MASLIHAT or a comparison health education intervention. Each PE recruited two migrants who inject drugs from their social networks with whom to share what they learned during the 5 educational sessions of the arm to which they were assigned. All participants completed questionnaires at baseline and 3-month intervals for one year to assess their HIV/STI risk behaviour. Mixed effects robust Poisson regression analyses tested for possible differences between assignment conditions in self-reported STIs during 12 months of follow-up and the contribution of sexual risk behaviours to STI acquisition. We then tested the mediating effects of sexual behaviours during the first six months following the intervention on STIs reported at the 9 and 12-month follow-up.</p><p><strong>Results: </strong>Participants in the MASLIHAT intervention were significantly less likely to report an STI during follow-up (IRR = 0.27). Condomless sex with a casual or commercial partner was significantly associated with STI acquisition (IRR = 2.30). Causal mediation analysis indicated that the intervention's effect on reported STI was partially mediated by reductions among MASLIHAT participants in condomless sex with a casual or commercial partner.</p><p><strong>Conclusions: </strong>The MASLIHAT peer-education intervention reduced reported STIs among Tajik labour migrants partly through reduced condomless sex with casual and commercial partners.</p><p><strong>Clinical trial registration: </strong>ClinicalTrials.gov, 2021-04-16, NCT04853394.</p>","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"2154"},"PeriodicalIF":3.5,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12150518/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144265224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of psychosocial factors on Swedish waste collectors musculoskeletal pain through the mediating roles of occupational fatigue and physical demands: a structural equation model.","authors":"Wenchu Huang, Xu Jin, Longao Yang, Yidan Dong, Yun Wang, Lihua He, Liyun Yang, Mikael Forsman","doi":"10.1186/s12889-025-22903-0","DOIUrl":"10.1186/s12889-025-22903-0","url":null,"abstract":"<p><strong>Background: </strong>Musculoskeletal pain is waste collectors' most common non-fatal and disabling health problem. However, research on how psychosocial factors affect musculoskeletal pain via physical and psychosocial pathways is limited. This study aimed to examine the effects of leadership quality, social support, and job demands on musculoskeletal pain among Swedish waste collectors. In addition, the mediating roles of physical demands and occupational fatigue and their chain mediation were also examined.</p><p><strong>Methods: </strong>A 2015 cross-sectional survey of all Swedish waste collectors utilized validated scales (COPSOQ II, SOFI-20, Nordic Questionnaire) to assess exposures (psychosocial factors), mediators (occupational fatigue, physical demands), and outcomes (musculoskeletal pain). Of 1005 eligible workers (≥ 1 year experience), 662 analyzed (65.9% response rate). Participants (median age = 47 years, IQR = 34-54; mean BMI = 27.1 ± 4.0 kg/m²) were primarily male (96.4%), operated rear-loader trucks (77.8%), and had 1-10 years of work experience (54.8%). Structural equation modeling and bias-corrected bootstrapping were used to assess direct/indirect pathways, with p ≤ 0.05 or 95% bootstrapped CIs excluded zero taken as significant.</p><p><strong>Results: </strong>Occupational fatigue explains the majority of the intermediate processes. Specifically, occupational fatigue mediated the effects of job demands (β = 0.185, 95% CI: 0.134-0.246), leadership quality (β = -0.074, 95% CI: -0.123 - -0.031), and social support (β = -0.051, 95% CI: -0.095 - -0.007) on musculoskeletal pain. Physical demands mediated job demands (β = 0.113, 95% CI: 0.075-0.155) and leadership quality (β = -0.038, 95% CI: -0.077 - -0.003) on musculoskeletal pain. Physical demands also amplified occupational fatigue (β = 0.369, p < 0.001), forming a chain mediation pathway.</p><p><strong>Conclusions: </strong>Leadership quality and job demands significantly influenced musculoskeletal pain through the mediating roles of occupational fatigue and physical demands, respectively. Social support's impact was limited to occupational fatigue mediation. Physical demands may translate to occupational fatigue and be linked to musculoskeletal pain. Managers of waste collectors should prioritize leadership training and the construction of good psychosocial factors to manage physical demands, ensure mental health, and thereby mitigate musculoskeletal pain.</p>","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"2143"},"PeriodicalIF":3.5,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12150477/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144265215","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Knowledge, attitude, and practice among parents of myopic children regarding multifocal soft contact lenses.","authors":"Renze Zhang, Yi Kuang, Jing Rao, Xinglan Liu, Qianqian Fang, Yuanyuan Tang, Juan Li","doi":"10.1186/s12889-025-23408-6","DOIUrl":"10.1186/s12889-025-23408-6","url":null,"abstract":"<p><strong>Background: </strong>This study aims to assess the knowledge, attitudes, and practices (KAP) among parents of myopic children regarding multifocal soft contact lenses.</p><p><strong>Methods: </strong>A cross-sectional study was conducted at Chongqing Eye and Vision Care Hospital from July 2024 to September 2024, targeting parents of myopic children. A structured questionnaire was administered to gather demographic data and assess KAP scores from respondents. Sufficient knowledge, positive attitude, and proactive practice were defined as scores > 70% of the possible maximum score in each dimension.</p><p><strong>Results: </strong>A total of 547 non-problematic responses were analyzed, with 344 respondents (62.9%) identifying as female. Additionally, 173 respondents (31.6%) reported that their children used multifocal soft contact lenses. The mean scores for knowledge, attitudes, myopia management practices, and practices related to the use of multifocal soft contact lenses were 12.50 ± 4.77 (range: 0-22), 33.87 ± 2.61 (range: 9-45), 20.25 ± 2.65 (range: 5-25), and 21.11 ± 2.13 (range: 5-25), respectively. Structural equation modeling revealed that knowledge exerted a direct effect on attitude (β = 0.706, P < 0.001) and practice (β = 0.213, P = 0.012), while attitude had a direct effect on practice (β = 0.293, P = 0.001). Additionally, knowledge had an indirect effect on practice via attitude (β = 0.207, P = 0.001).</p><p><strong>Conclusions: </strong>Parents of myopic children exhibited insufficient knowledge but generally positive attitudes and proactive practices toward the use of multifocal soft contact lenses. Implementing educational initiatives aimed at enhancing parents' knowledge may lead to more informed and effective myopia management practices for children.</p><p><strong>Trial registration: </strong>Not applicable.</p>","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"2159"},"PeriodicalIF":3.5,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12150466/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144265221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pathways to understanding problem gambling among adolescents.","authors":"Hyun Jung Lee, Gyungjoo Lee","doi":"10.1186/s12889-025-23213-1","DOIUrl":"10.1186/s12889-025-23213-1","url":null,"abstract":"<p><strong>Background: </strong>Gambling among youth is attracting the attention of health experts worldwide. A need has arisen for more research on the pathways to the development of adolescent problem gambling behavior and related factors.</p><p><strong>Methods: </strong>A cross-sectional study was conducted, and structure equation modeling was used to analyze data from the Korea Problem Gambling Agency to predict problem gambling among 1,474 adolescents aged 13-18 years.</p><p><strong>Results: </strong>Structural equation modeling showed that gambling accessibility and media exposure are associated with heightened sensation-seeking tendencies, which are related to stronger irrational gambling beliefs. The mediating associations of these factors play a significant role in predicting adolescent problem gambling. Additionally, ecological influences, including gambling accessibility and media exposure, show associations with the reinforcement of irrational gambling beliefs among adolescents. Although impulsivity was increased due to media exposure, it was not a significant mediator among gambling accessibility and media exposure, irrational gambling beliefs and problem gambling.</p><p><strong>Conclusion: </strong>Understanding adolescent problem gambling requires a comprehensive approach that considers both ecological and individual factors. To effectively reduce adolescent problem gambling, collaboration among researchers, policymakers, schools, parents, and adolescents is essential.</p>","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"2144"},"PeriodicalIF":3.5,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12150549/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144265223","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"To facilitate realisation of access, participation, and equity in healthcare: an interview study with policy makers in a Swedish region.","authors":"Maria Norfjord van Zyl, Margareta Asp, Charlotta Åkerlind","doi":"10.1186/s12889-025-23263-5","DOIUrl":"10.1186/s12889-025-23263-5","url":null,"abstract":"<p><strong>Background: </strong>How elected healthcare policy makers perceive commonly described core values such as access, participation, and equity, can affect how actions towards these core values will be prioritised. With the example of Sweden, where the healthcare sector in each region is self-governed, this study aims to describe how some Swedish policy makers perceive the prerequisites to facilitate the realisation of access to, participation, and equity in healthcare.</p><p><strong>Methods: </strong>This qualitative descriptive study involved interviews with ten policy makers, members of a public health and healthcare sub-committee, represented a region in Mid-Sweden. The data collected from the semi-structured individual interviews were subjected to a qualitative content analysis.</p><p><strong>Results: </strong>The policy makers perceived access as a service-minded approach. Considerations about the population's needs and the effectiveness of healthcare must be addressed to provide access. Participation was perceived as a reciprocal understanding where partnership and knowledge were expressed as fundamental aspects of participation. Equity perceived as a respectful encounter considers socio-economic preconditions, rights, and continuous endeavour.</p><p><strong>Conclusions: </strong>The core values are commonly shared values but entails challenges to implement these values in healthcare. Implementation can be facilitated by translating the meanings of the core values into contexts where they are supposed to be applied.</p>","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"2147"},"PeriodicalIF":3.5,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12150498/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144265235","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A multistage research on factors influencing and active learning intervention on health literacy of community-residing elderly adults in Nanjing.","authors":"Shengxuan Jin, Ruobing Fa, Jianqian Chao, Na Zhang, Min Bao, Yanqian Wu, Leixia Wang, Gangrui Tan","doi":"10.1186/s12889-025-23394-9","DOIUrl":"10.1186/s12889-025-23394-9","url":null,"abstract":"<p><strong>Background: </strong>The health literacy among older adults deserves further investigation. This study aimed to conduct a multistage research to investigate the current status and key determinants of health literacy among Chinese older adults and evaluate the effectiveness of an active learning intervention in enhancing their health literacy.</p><p><strong>Methods: </strong>In the first phase, a cross-sectional study surveyed 608 elderly residents. The second phase was a two-arm parallel randomized controlled trial (RCT) in which 120 older adults were randomly assigned to a three-month intervention (n = 60) or control group (n = 60). The active learning program intervention included health lectures, active discussions, heuristic questioning, and family homework, while the control group only received health literacy pamphlets. Health literacy scores were the primary outcome and were evaluated from five dimensions. The RCT data was collected at baseline and the completion of the intervention.</p><p><strong>Results: </strong>In the cross-sectional study, the median (IQR) health literacy score was 4.355 (4.030, 4.647) (range: 0-5) Quantile regression showed that sex, education, number of children, self-reported health, chronic disease and insurance significantly affected health literacy. The intervention group showed significant improvement in all dimensions (P < 0.05), with significant group × time interactions in health knowledge, health behaviours, health skills, health intentions and total health literacy. Multiple linear regression indicated that marriage status related to health knowledge, education level related to health behaviours and total health literacy, chronic diseases and insurance factors related to health skills, and sex and insurance factors related to health intentions have significant effects.</p><p><strong>Conclusion: </strong>The health literacy of older adults is influenced by individuals, families, and societal factors. The active learning program effectively enhances comprehensive health literacy and is a valuable strategy for advancing China's proactive health strategy by mobilizing the roles of the individual, family, and society.</p><p><strong>Trial registration: </strong>The trial has been retrospectively registered on April 8, 2025, at the Chinese Clinical Trial Registry (ChiCTR2500100396|| http://www.chictr.org.cn/ ), which is a primary registry of the International Clinical Trial Registry Platform of the World Health Organization.</p>","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"2149"},"PeriodicalIF":3.5,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12150441/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144265152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Web-based intervention program to foster need-supportive behaviors in physical education teachers and parents: a cluster-randomized controlled study to increase students' intention and effort to engage in physical activity.","authors":"Pille-Riin Meerits, Henri Tilga, Andre Koka","doi":"10.1186/s12889-025-22590-x","DOIUrl":"10.1186/s12889-025-22590-x","url":null,"abstract":"&lt;p&gt;&lt;strong&gt;Background: &lt;/strong&gt;This study evaluates the effect of two web-based interventions- one targeting physical education (PE) teachers and the other targeting parents- designed to enhance need-supportive behaviors in their interactions with adolescents. Need support, which involves fostering autonomy, competence, and relatedness, plays a crucial role in increasing adolescents' autonomous motivation, intention, and effort in leisure-time physical activity (PA).&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Methods: &lt;/strong&gt;115 child-parent pairs were recruited (children: 55 boys, 60 girls; M&lt;sub&gt;age&lt;/sub&gt;=12.47, SD = 0.68). Participants were cluster-randomized by schools into the following groups: PE teacher training only; parent training only; combined PE teacher and parent training; and control group. Data from students were collected at four time points: baseline, post-intervention, 1-month follow-up, and 6-month follow-up, using web-based questionnaires. The effects of the interventions on the study variables were assessed using path analysis.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Results: &lt;/strong&gt;The intervention for PE teachers had a significant direct effect on adolescents' perceived need-support from parents (β = 0.28, p = 0.027), controlled motivation in PE (β=-0.25, p = 0.042), attitude towards (β = 0.24, p = 0.016), and perceived behavioral control regarding leisure-time PA (β = 0.30, p = 0.006). Changes in perceived need support from PE teachers enhanced students' autonomous motivation in PE (β = 0.61, p = 0.001), while need support from parents increased autonomous motivation towards leisure-time PA (β = 0.29, p = 0.041). Changes in perceived need-support from parents additionally had significant specific indirect effects on changes in adolescents' intention (B = 0.06, p = 0.025) and effort (B = 0.04, p = 0.024) towards leisure-time PA, the effect mediated by changes in autonomous motivation and attitude.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Discussion: &lt;/strong&gt;While PE teachers' support is necessary in fostering autonomous motivation in students, parental support may need more tailored strategies. Both parents and PE teachers play a critical role in providing need support, which significantly enhances adolescents' motivation toward leisure-time PA. When adolescents feel supported, their attitude, intention, and effort toward leisure-time PA improve.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Conclusions: &lt;/strong&gt;Web-based intervention for PE teachers effectively changed motivational constructs, while the parental intervention did not yield expected direct effects, indicating that parental support may be more complex. This study emphasizes the role of perceived need support from PE teachers and parents in enhancing adolescents' autonomous motivation towards leisure-time PA, highlighting the need for collaboration between educators and parents in supporting adolescents' basic psychological needs.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Trial registration: &lt;/strong&gt;Prospectively registered in ISRCTN registry as ISRCTN78373974 (15.12.2022). Overall study st","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"2142"},"PeriodicalIF":3.5,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12150481/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144265236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exposure-response relationship of household air pollution on body mass index among women in rural areas of Guatemala, India, Peru and Rwanda: household air pollution intervention network trial.","authors":"Adolphe Ndikubwimana, William Checkley, Yunyun Chen, Thomas Clasen, Carmen Lucía Contreras, Anaite Diaz-Artiga, Ephrem Dusabimana, Lisa de Las Fuentes, Shirin Jabbarzadeh, Michael Johnson, Egide Kalisa, Patrick Karakwende, Miles Kirby, Amy E Lovvorn, John P McCracken, Florien Ndagijimana, Theoneste Ntakirutimana, Jean Dieu Ntivuguruzwa, Jennifer L Peel, Ajay Pillarisetti, Victor G Dávila-Román, Ghislaine Rosa, Sarada S Garg, Lisa Thompson, Lance A Waller, Jiantong Wang, Maggie L Clark, Bonnie N Young","doi":"10.1186/s12889-025-23380-1","DOIUrl":"10.1186/s12889-025-23380-1","url":null,"abstract":"<p><strong>Background: </strong>Household air pollution from burning biomass materials, the main cooking fuel in low- and middle-income countries, may be linked to metabolic dysfunction. We assessed cross-sectional associations between household air pollution and body mass index (BMI), expecting to see increased BMI with higher pollution concentrations.</p><p><strong>Methods: </strong>We analyzed data from 414 women aged 40 to 79 years who resided in the households using biomass fuel and were enrolled in the multi-country Household Air Pollution Intervention Network (HAPIN) Trial. We explored associations of 24-h average personal exposure to fine particulate matter (PM_2.5), black carbon (BC), and carbon monoxide (CO) with BMI through single pollutant linear and logistic models adjusted for potential confounders (i.e., age, socioeconomic indicators, education, dietary diversity, secondhand smoke exposure, alcohol and grain consumption).Sensitivity analyses explored air pollutants as quartiles, and other variables as potential confounders, such as physical activity, enrollment site, and dietary items. We examined effect modification of research site on the associations.</p><p><strong>Results: </strong>We observed mixed evidence of associations between household air pollution and BMI in linear regression. There was no association with BMI and PM₂.₅ (1-unit increase in log-transformed PM₂.₅ estimate 0.02 kg/m² [95% CI: -0.51, 0.54]) or CO (1-unit increase in log-transformed CO estimate 0.42 kg/m² [95% CI -0.31, 1.14]). However, a 1-unit increase in log-transformed BC showed an association in the opposite direction as hypothesized (BC estimate -0.59 kg/m² [95% CI -1.17, -0.003]). Using logistic regression models, we found that only CO significantly increased the odds of overweight/obesity: a 1-unit increase in log-transformed CO led to an odds ratio of 1.66 (95% CI: 1.10, 2.51). Effect modification showed inverse association between BC exposure and BMI in Peru.</p><p><strong>Conclusions: </strong>Evidence suggests a significant association between CO exposure and increased odds of being overweight/obese, whereas impacts of PM_2.5 and BC on BMI had null or inverse effects.</p>","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"2163"},"PeriodicalIF":3.5,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12150507/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144265217","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}