BMC Public Health最新文献

{"title":"Perceptions of dietary sugar consumption among public housing residents using a modified qualitative photovoice methodology.","authors":"Mabeline Velez, Brenda Heaton, Chelsey Solar, Yinette Fuertes, Belinda Borrelli, Raul I Garcia, Lisa M Quintiliani","doi":"10.1186/s12889-025-22391-2","DOIUrl":"https://doi.org/10.1186/s12889-025-22391-2","url":null,"abstract":"<p><strong>Background: </strong>Consumption of dietary sugar (e.g. sugar-sweetened beverages and high sugar foods) is a predominant contributor to chronic health conditions, particularly in communities of low socio-economic position. Our objective was to explore social contextual influences on dietary sugar consumption among public housing residents in Boston, MA.</p><p><strong>Methods: </strong>This study employed the use of photovoice, a qualitative technique involving participant photography and narratives. Due to the COVID-19 pandemic, we conducted photovoice methods using Zoom. Adult residents of two public housing developments were invited to participate in pairs of online group sessions. The first session provided training on photovoice methodology and a discussion of example photographs and written narratives. Over the ensuing two weeks, participants took or identified stock photos as visual examples of personally-experienced barriers and facilitators of avoiding sugary foods and beverages. During the second session, study staff facilitated development of verbal narratives via group discussion. A total of 18 sessions were audio recorded, transcribed, and double-coded for themes.</p><p><strong>Results: </strong>Participants (n = 49) were predominantly women and identified as either Hispanic (61.2%) or non-Hispanic Black (30.6%). Approximately half of participants (51.1%) reported consuming sugar-sweetened beverages at least once per day. Qualitative analysis revealed participant-identified influences on dietary sugar consumption across multiple domains of influence, including individual preferences, beliefs, or circumstance, the social environment, the physical environment, and the macro environment.</p><p><strong>Conclusions: </strong>The multiple social contextual influences on dietary sugar consumption identified in this study, particularly centrality of the home, cultural influences, individual-level sabotaging factors, may be useful for development of culturally tailored health promotion messaging and intervention through multiple channels.</p>","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"1313"},"PeriodicalIF":3.5,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143810057","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Developing self-efficacy and 'communities of practice' between community and institutional partners to prevent suicide and increase mental health in under-resourced communities: expanding the research constructs for upstream prevention.","authors":"Lisa Wexler, Lauren White, Joel Ginn, Tara Schmidt, Suzanne Rataj, Caroline C Wells, Katie Schultz, Eleni A Kapoulea, Diane McEachern, Patrick Habecker, Holly Laws","doi":"10.1186/s12889-025-22465-1","DOIUrl":"https://doi.org/10.1186/s12889-025-22465-1","url":null,"abstract":"<p><strong>Background: </strong>Suicide is a serious and growing health inequity for Alaska Native (AN) youth (ages 15-24), who experience suicide rates significantly higher than the general U.S. youth population. In under-served, remote AN communities, building on existing local and cultural resources can increase uptake of prevention behaviors like lethal means reduction, interpersonal support, and postvention by family members, workers and community members, which can be important for preventing suicide in places where mental health services are sparce. This study expands the variables we hypothesize as important for reducing suicide risk and supporting mental wellness. These variables are: (1) perceived suicide prevention self-efficacy, (2) perceived wellness self-efficacy, and (3) developing a 'community of practice' (CoP) for prevention/wellness work.</p><p><strong>Method: </strong>With a convenience sample (N = 398) of participants (ages 15+) in five remote AN communities, this study characterizes respondents' social roles: institutional role if they have a job that includes suicide prevention (e.g. teachers, community health workers) and community role if their primary role is based on family or community positioning (e.g. Elder, parent). The cross-sectional analysis then explores the relationship between respondents' wellness and prevention self-efficacy and CoP as predictors of their self-reported suicide prevention and wellness promotion behaviors: (1) working together with others (e.g. community initiatives), (2) offering interpersonal support to someone (3), reducing access to lethal means, and (4) reducing suicide risk for others after a suicide death in the community.</p><p><strong>Results: </strong>Community and institutional roles are vital, and analyses detected distinct patterns linking our dependent variables to different preventative behaviors. Findings associated wellness self-efficacy and CoP (but not prevention self-efficacy) with \"working together\" behaviors, wellness and prevention self-efficacy (but not CoP) with interpersonal supportive behaviors; both prevention self-efficacy and CoP with higher postvention behaviors. Only prevention self-efficacy was associated with lethal means reduction.</p><p><strong>Conclusions: </strong>The study widens the scope of suicide prevention. Promising approaches to suicide prevention in rural low-resourced communities include: (1) engaging people in community and institutional roles (2), developing communities of practice for suicide prevention among different sectors of a community, and (3) broadening the scope of suicide prevention to include wellness promotion as well as suicide prevention.</p>","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"1323"},"PeriodicalIF":3.5,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143810444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Trends in the burden of chronic kidney disease related to high red meat intake from 1990 to 2021.","authors":"Miaofei Dai, Haixu Guo","doi":"10.1186/s12889-025-22560-3","DOIUrl":"https://doi.org/10.1186/s12889-025-22560-3","url":null,"abstract":"<p><strong>Objective: </strong>To systematically examine global trends and spatial distribution of the burden of chronic kidney disease associated with high red meat intake from 1990 to 2021 using data from the Global Burden of Disease 2021 study, providing scientific evidence for targeted prevention strategies.</p><p><strong>Methods: </strong>We assessed disease burden using age-standardized death rate and age-standardized disability-adjusted life year rate. Disease burden was analyzed by sex, age, region, and Socio-demographic Index level, while estimated annual percentage change was calculated to evaluate temporal trends.For the analysis of future trends in chronic kidney disease burden, we utilized both the Age-Period-Cohort model and the Bayesian Age-Period-Cohort model.</p><p><strong>Results: </strong>From 1990 to 2021, age-standardized death rate and disability-adjusted life year rates of chronic kidney disease linked to high red meat intake increased, with EAPCs of 1.33% and 1.07%, respectively. Males consistently exhibited a higher disease burden than females, with mortality peaking in the 85-89 age group. The age-standardized disability-adjusted life year rate in high-SDI groups (6.59 per 100,000) was significantly higher than in low-SDI groups (2.38 per 100,000). A temporary decline occurred between 2016 and 2018, and disease burden decreased among individuals over 95 years old between 2018 and 2021.</p><p><strong>Conclusion: </strong>The chronic kidney disease burden associated with high red meat intake demonstrated significant demographic and regional disparities, characterized by an overall increasing trend with some period-specific exceptions. These findings suggest the need for targeted public health interventions, particularly dietary guidance for high-risk populations such as males and residents of high-SDI groups. Future research should focus on elucidating the underlying biological mechanisms and social determinants that drive these disparities.</p>","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"1319"},"PeriodicalIF":3.5,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143810002","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of a lifestyle programme on accelerometer-measured physical activity level and sedentary time on overweight and obese women of Somali background living in Norway.","authors":"Eivind Andersen, Linn Bohler, Maria J Leirbakk, Danielle Cabral, Mia C Wedegren, Mark L Wieland, Haakon E Meyer, Ahmed A Madar","doi":"10.1186/s12889-025-22475-z","DOIUrl":"10.1186/s12889-025-22475-z","url":null,"abstract":"<p><strong>Background: </strong>Given the elevated prevalence and impact of overweight and the potential risk of non-communicable diseases among women of Somali background in high-income countries and recognising the potential positive impact of physical activity (PA) on these health conditions, it becomes imperative to focus on understanding the PA behaviour of this specific population. The objectives of this paper were twofold: firstly, to provide a comprehensive description of both objectively and subjectively measured PA level and sedentary time in a group of overweight women of Somali background in Norway, and secondly, to assess the effectiveness of a tailored, culturally sensitive, community-based intervention in increasing PA and reducing sedentary time.</p><p><strong>Methods: </strong>169 overweight women of Somali background in Norway were randomised by borough to either a lifestyle programme or a comparison group. The programme consisted of two sessions per week for 12 weeks, combining classroom discussion with graded group-based PA led by coaches, followed by monthly sessions over nine months. PA was measured objectively using the ActivPAL monitor and subjectively using the international PA questionnaire short form (IPAQ-SF) at baseline and 12 months after baseline.</p><p><strong>Results: </strong>The women took on average 6804 (SD = 3286) steps per day and were sedentary for 9.1 (SD = 3) hours per day at baseline. There were no differences between groups on any accelerometer measured PA variable at any timepoint. There were significant differences on vigorous intensity PA (25.9 min; 95% CI 7.7, 44.1) and total PA (77.6 min; 95% CI 13.2, 142.1) at the 12-month measurement session between the two groups using the IPAQ-SF.</p><p><strong>Conclusion: </strong>Despite observing initially low PA levels and high sedentary time at baseline and thus a considerable potential for intervention, the intervention failed in attaining an increase in accelerometer measured PA or reduction in sedentary time compared to the control condition. However, self-reported measures indicated success in these aspects. The potential threats to the programme's reliability and validity include high drop-out rates possible due to the COVID-19 pandemic, contamination and low attendance rates. These challenges underscore the complexity of interventions in this demographic, emphasising the need for further exploration and refinement of methodologies to effectively enhance PA levels and reduce sedentary time in immigrant women living in high-income countries.</p><p><strong>Trial registration: </strong>clinicaltrials.gov NCT04578067, registered May 2021.</p>","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"1310"},"PeriodicalIF":3.5,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143802405","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Association of diurnal temperature range and childhood asthma: a population-based cross-sectional study in a Tropical City, China.","authors":"Wangyang Gu, Yabin Hu, Qinpeng Li, Huike Feng, Yihao Xue, Linling Xu, Yang Chen, Yushi Zhou, Shilu Tong, Shijian Liu","doi":"10.1186/s12889-025-22470-4","DOIUrl":"10.1186/s12889-025-22470-4","url":null,"abstract":"<p><strong>Background: </strong>Climate change has significantly impacted the diurnal temperature range (DTR), particularly in tropical regions of China, where DTR fluctuations are more frequent. While previous studies have primarily focused on the link between short-term DTR exposure and childhood asthma, there is limited information on the long-term effects from large-scale studies.</p><p><strong>Methods: </strong>In 2022, a cross-sectional survey involving 9,130 children aged 2-10 years was conducted using stratified cluster random sampling in tropical Sanya, Hainan Province, China. Data on demographics, and asthma symptoms were collected using the validated International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire. Temperature, precipitation and Normalized Difference Vegetation Index (NDVI) were obtained from remote sensing satellite. A generalized linear model (GLM) was employed to analyze the association between DTR exposure and asthma, and stratified analyses were conducted based on environmental and lifestyle factors.</p><p><strong>Results: </strong>The prevalence of childhood asthma was 7.57%, with the annual average DTR ranging from 5.15℃ to 7.26℃. After adjusting for potential confounders, each 1℃ increase in DTR was associated with a 65.9% higher risk of asthma (95% CI: 1.058, 2.602). Stratified analyses indicated that the impact of DTR on asthma risk was stronger among children living in areas with higher temperatures, higher precipitation, lower vegetation coverage (measured by NDVI), as well as those who were not breastfed, exposed to passive smoking, or whose mothers had pets during pregnancy.</p><p><strong>Conclusions: </strong>In Sanya, increased annual DTR was significantly associated with a higher odds of childhood asthma, and this effect was influenced by environmental and lifestyle factors. Therefore, public health strategies could mitigate childhood asthma risk associated with DTR through urban greening, advocating for breastfeeding, reducing secondhand smoke, and avoiding pet ownership during pregnancy.</p>","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"1302"},"PeriodicalIF":3.5,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143802339","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Publisher Correction to: Did the pandemic change lifestyle behaviours in Italy? An interrupted time series analysis on the four main NCDs behavioural risk factors from 2008 to 2023.","authors":"Federica Asta, Valentina Minardi, Benedetta Contoli, Valentina Possenti, Virginia Casigliani, Maria Masocco","doi":"10.1186/s12889-025-22147-y","DOIUrl":"https://doi.org/10.1186/s12889-025-22147-y","url":null,"abstract":"","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"1308"},"PeriodicalIF":3.5,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143802438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Spreading of SARS-CoV-2 among adult asylum seekers in refugee community shelters in Lübeck, Germany between 2020 and 2022: a mixed-cohort observational and repeated cross-sectional study.","authors":"Daniel Alvarez-Fischer, Max Borsche, Alexander Balck, Bandik Föh, Arnim Hoischen, Fawad Hotak, Jan Reinhardt, Susanne A Elsner, Elke Peters, Andrea Rieck, Emily L Martin, Inga Künsting, Marc Ehlers, Alexander Mischnik, Stefan Taube, Nadja Käding, Jan Rupp, Alexander Katalinic, Christine Klein","doi":"10.1186/s12889-025-22120-9","DOIUrl":"10.1186/s12889-025-22120-9","url":null,"abstract":"<p><strong>Introduction: </strong>Housing and access to healthcare pose particular challenges to asylum seekers and refugees. The main study aim was to assess their frequency of SARS-CoV-2 infection during the COVID-19 pandemic.</p><p><strong>Methods: </strong>We provide a prospective study on SARS-CoV-2 cases among adult asylum seekers/refugees in Europe over 18 months. Acute SARS-CoV-2 infection and antibody titers were determined in adult refugees living in shared accommodation in Lübeck, Germany, in fall 2020 (TP1) and spring 2021 (TP2) and compared to the results from a local population-based cohort. In spring 2022 (TP3), we determined antibody titers two years into the pandemic and one year of access to vaccination. At TP3, we additionally included a third cohort of recently arrived refugees from Ukraine.</p><p><strong>Results: </strong>At all three time points, we detected a marked increase in the infection frequency in refugee community shelters compared to the control group. Age, sex, or facility equipment did not impact the results. Refugees living with their own children in the shelter were significantly more often infected than those without. None of the PCR-positive refugees at TP1 and TP2 were aware of their infection. One year later, awareness of having had an infection was still much lower among the refugees compared to the control cohort. Only 32.9% of the asylum seekers were willing to be vaccinated compared to 85.5% in the control population at the beginning of the vaccination period. However, over 90% of the same population was vaccinated one year later. Among newly arrived refugees from Ukraine, uncertainty towards vaccination was significantly increased compared to the control cohort and the group of residing refugees.</p><p><strong>Conclusion: </strong>Refugees residing in shared accommodations represent a vulnerable group for SARS-CoV-2 infection and transmission. This increased vulnerability does not diminish over time. Initial doubts regarding vaccination are higher among refugees. While this reservation can be overcome, awareness work is paramount and has to start anew with any new refugee wave.</p>","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"1301"},"PeriodicalIF":3.5,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143802441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adaptations of an online cognitive-behavioral therapy intervention for binge type eating disorders in publicly-insured and uninsured adults: a pilot study.","authors":"Siena S Vendlinski, Agatha A Laboe, Peyton Crest, Claire G McGinnis, Molly F Steinhoff, Denise E Wilfley, C Barr Taylor, Ellen E Fitzsimmons-Craft, Erin C Accurso","doi":"10.1186/s12889-025-22494-w","DOIUrl":"10.1186/s12889-025-22494-w","url":null,"abstract":"<p><strong>Background: </strong>Publicly-insured and uninsured individuals-many of whom are marginalized because of race/ethnicity, ability status, and/or other social identities-experience barriers to accessing evidence-based interventions (EBIs) for eating disorders (EDs). Additionally, EBIs have not been developed with or for diverse populations, exacerbating poor treatment uptake. Mobile technology is well-positioned to bridge this gap and increase access to low-cost, culturally-sensitive EBIs.</p><p><strong>Methods: </strong>This study leverages a user-centered design approach to adapt an existing coached cognitive-behavioral therapy-based digital program and evaluate its usability in a sample of 11 participants with (sub)clinical binge type EDs who are publicly-insured (n = 10) or uninsured (n = 1). Participants were primarily non-Latinx White women (n = 8). Two semi-structured interviews occurred with participants: one to assess treatment needs and the other to obtain program-specific feedback. Interviews were coded using inductive thematic analysis.</p><p><strong>Results: </strong>Interview 1 feedback converged on three themes: Recovery Journey, Treatment Experiences, and Engagement with and Expectations for Online Programs. Participants endorsed facing barriers to healthcare, such as poor insurance coverage and a lack of trained providers, and interest in a coach to increase treatment accountability. Interview 2 feedback converged on three themes: Content Development, Participant Experiences with Mental Health, and Real-World Use. Participants liked the content but emphasized the need to improve diverse representation (e.g., gender, body size).</p><p><strong>Conclusions: </strong>Overall, user feedback is critical to informing adaptations to the original EBI so that the intervention can be appropriately tailored to the needs of this underserved population, which ultimately has high potential to address critical barriers to ED treatment.</p><p><strong>Trial registration: </strong>This study was reviewed and approved by the Institutional Review Board (IRB) at the University California, San Francisco (IRB #22-35936) and the IRB at Washington University in St. Louis (IRB ID 202304167).</p>","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"1296"},"PeriodicalIF":3.5,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143802337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Circadian rest-activity rhythms and multimorbidity and mortality risks among menopausal women: a trajectory analysis of a UK Biobank cohort.","authors":"Xiyun Ren, Wentong Wang, Wei Li, Lishuang Sun, Tianyu Liu, Haibo Zhou, Tianshu Han, Changhao Sun, Xiangfeng Lu, Wenjing Tian","doi":"10.1186/s12889-025-22536-3","DOIUrl":"10.1186/s12889-025-22536-3","url":null,"abstract":"<p><strong>Background: </strong>Menopausal women undergo substantial physiological changes that can impact their overall health.</p><p><strong>Objectives: </strong>We examined relationships between circadian rest-activity rhythms (CRARs) and multimorbidity progression in this population.</p><p><strong>Methods: </strong>We used UK Biobank data, involving 10,138 participants, who were initially free of chronic conditions. We primarily focused on the relative amplitude (RA) of CRARs, tracking incident first chronic conditions (FCC), multimorbidity, and all-cause mortality. Multimorbidity was indicated by the presence of any 2/35 chronic conditions during the follow-up period. We used a multi-state model to assess the RA impact on the multimorbidity progression trajectory, encompassing transition from health to an FCC, to consequent multimorbidity, and ultimately to mortality, in parallel with sensitivity analyses to ensure results stability and reliability.</p><p><strong>Results: </strong>During a mean 8.13-year follow-up period, we identified 855 incident multimorbidity cases and recorded 88 deaths. In a multi-state model, a lower RA was associated with an increased risk of transition from health to FCC onset [hazard ratio (HR): 1.18, 95% confidence interval (CI): 1.07-1.31] and also from an FCC to multimorbidity development (HR: 1.34, 95% CI: 1.12-1.61), even after adjusting for several confounding factors.</p><p><strong>Conclusions: </strong>Among menopausal women, circadian rhythm disturbance increased the risk of transitioning from health to a single chronic condition, as well as transitioning from a single chronic condition to multimorbidity.</p>","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"1304"},"PeriodicalIF":3.5,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143802381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exposure to low concentrations of PM_2.5 and its constituents with preterm birth in Shenzhen, China: a retrospective cohort study.","authors":"Minting Zhu, Zhongai Ouyang, Tao Liu, Weigui Ni, Zhijian Chen, Bingyi Lin, Lijuan Lai, Yi Jing, Long Jiang, Jingjie Fan","doi":"10.1186/s12889-025-22489-7","DOIUrl":"10.1186/s12889-025-22489-7","url":null,"abstract":"<p><strong>Background: </strong>Due to the Air Pollution Prevention and Control Measures issued by the Chinese government, air quality has significantly improved, particularly with respect to PM_2.5. However, studies on the relationship between low concentrations of PM_2.5 and preterm birth (PTB) remain limited in China.</p><p><strong>Objective: </strong>To examine the associations between low concentrations of PM_2.5 and its constituents and PTB.</p><p><strong>Methods: </strong>This retrospective cohort study was conducted from July 2021 to April 2023 in Shenzhen, China. Data on questionnaires and pregnancy outcomes were collected for each participant. Using the Tracking Air Pollution in China (TAP) dataset, we assessed the concentrations of PM_2.5 and its chemical constituents, including sulfate (SO₄^2-), nitrate (NO₃^-), organic matter (OM), black carbon (BC), and ammonium (NH₄⁺). We applied a generalized additive model (GAM) to evaluate the relationship. The relationship between exposure to PM_2.5 and its constituents and PTB was further examined using a method that combined dummy variable settings with trend tests. Stratified analysis was conducted to explore the potential factors.</p><p><strong>Results: </strong>Among 17,240 live-born infants, the rate of PTB was 6.0%, and the average exposure concentration of PM_2.5 was 20.24 μg/m³. There were positive associations between PM_2.5 and its constituents and PTB. With each interquartile range (IQR) increase in PM_2.5 during the third trimester, the risk of PTB increased by 2.23 times. The exposure effects of sulfate (SO₄^2-) and organic matter (OM) were comparable to the total PM_2.5. The third trimester might be the critical susceptibility window. The risk was higher among women who conceived in the cold season and were exposed to higher temperatures during pregnancy.</p><p><strong>Conclusion: </strong>Even at low levels, PM_2.5 can still increase the risk of PTB, with varying health effects attributed to different constituents. This underscores the importance of further strengthening environmental management and characterizing the contributions of PM_2.5 sources.</p>","PeriodicalId":9039,"journal":{"name":"BMC Public Health","volume":"25 1","pages":"1295"},"PeriodicalIF":3.5,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143802409","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}