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Background: Previous observational studies suggested a correlation between particulate matter 2.5 (PM) and infectious diseases, but causality remained uncertain. This study utilized Mendelian randomization (MR) analysis to investigate causal relationships between PM concentrations and various infectious diseases (COVID-19 infection, hospitalized COVID-19, very severe COVID-19, urinary tract infection, bacterial pneumonia, and intestinal infection).
Methods: Inverse variance weighted (IVW) was the primary method for evaluating causal associations. For significant causal estimates, multiple sensitivity tests were further performed: (i) three additional MR methods (MR-Egger, weighted median, and maximum likelihood method) for supplementing IVW; (ii) Cochrane's Q test for assessing heterogeneity; (iii) MR-Egger intercept test and MR-PRESSO global test for evaluating horizontal pleiotropy; (iv) leave-one-out sensitivity test for determining the stability.
Results: PM concentration significantly increased the risk of hospitalized COVID-19 (OR = 1.91, 95 % CI: 1.06-3.45, = 0.032) and very severe COVID-19 (OR = 3.29, 95 % CI: 1.48-7.35, = 3.62E-03). However, no causal effect was identified for PM concentration on other infectious diseases ( > 0.05). Furthermore, various sensitivity tests demonstrated the reliability of significant causal relationships.
Conclusions: Overall, lifetime elevated PM concentration increases the risk of hospitalized COVID-19 and very severe COVID-19. Therefore, controlling air pollution may help mitigate COVID-19 progression.
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http://dx.doi.org/10.1016/j.heliyon.2023.e23412 | DOI Listing |
Int J Epidemiol
August 2025
Department of Biostatistics and Informatics, University of Colorado, Aurora, CO, United States.
Background: Existing longitudinal cohort study data and associated biospecimen libraries provide abundant opportunities to efficiently examine new hypotheses through retrospective specimen testing. Outcome-dependent sampling (ODS) methods offer a powerful alternative to random sampling when testing all available specimens is not feasible or biospecimen preservation is desired. For repeated binary outcomes, a common ODS approach is to extend the case-control framework to the longitudinal setting.
View Article and Find Full Text PDFJMIR Public Health Surveill
September 2025
Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, United States.
Background: In recent years, social media has emerged as a pivotal tool in implementation science efforts to address the HIV epidemic. Engaging community partners is essential to ensure the successful and equitable implementation of social media strategies. There is a notable lack of scholarship addressing the operational considerations for studies using social media strategies in community-partnered HIV research.
View Article and Find Full Text PDFAm J Public Health
October 2025
Alexander Furuya, Asa Radix, Adam Whalen, Jessica Contreras, Jenesis Merriman, Krish J. Bhatt, Roberta Scheinmann, and Dustin T. Duncan are with the Department of Epidemiology, Columbia University Mailman School of Public Health, New York, NY. Yusuf Ransome is with the Department of Social and Behav
To examine how one's community connectedness may act as a source of resilience and promote HIV prevention and care behaviors among transgender women of color. We analyzed survey data from 313 transgender women of color living in New York City collected from August 2020 to November 2022. The Community Connectedness Scale asks participants about their baseline feelings of connection, feelings of inclusion, feelings of belonging, feelings of isolation, and feelings of being unlike in relation to the transgender community.
View Article and Find Full Text PDFJMIR Med Inform
September 2025
College of Medical Informatics, Chongqing Medical University, 1 Yixueyuan Road, Yuzhong District, Chongqing, 400016, China, 86 13500303273.
Background: Cirrhosis is a leading cause of noncancer deaths in gastrointestinal diseases, resulting in high hospitalization and readmission rates. Early identification of high-risk patients is vital for proactive interventions and improving health care outcomes. However, the quality and integrity of real-world electronic health records (EHRs) limit their utility in developing risk assessment tools.
View Article and Find Full Text PDFPol Merkur Lekarski
September 2025
LLC "ECOFARM", KYIV, UKRAINE.
Objective: Aim: To consider the specific activity of drops and suppositories of PROTEFLAZID® at the stage of preclinical study, to assess the effectiveness and safety of use in clinical practice in papillomavirus-associated diseases of the female reproductive system..
Patients And Methods: Materials and Methods: Analysis of scientific publications on the treatment of palilomavirus infection with PROTEFLAZID® in women over the past decade.