Epidemiologia

Synthetic turf has become a popular alternative to natural grass due to low upkeep costs; however, its health impacts have not been clearly elucidated. This review examines and consolidates the existing literature on rubber crumb in infill in synthetic turf and its associated adverse health outcomes, along with recommendations for future research. A database search was conducted in PubMed, Web of Science, Scopus, Embase, and Google Scholar of studies on exposures to rubber crumb in infills in synthetic turf. The search focused on epidemiological and toxicological laboratory studies (including exposure simulation and animal studies), as well as government reports. Non-English studies and those addressing injuries (musculoskeletal and burn injuries) were not considered. Eighteen laboratory studies examined concentrations of PAHs found in synthetic turf rubber infill. The total level of PAHs detected in samples varied between 0.4 mg/kg and 3196 mg/kg. The PAH levels were influenced by the age of the synthetic turf, with the older synthetic surface fields containing lower concentrations (compared to newly laid turfs). Synthetic turfs composed of industrial rubber crumb infill also had a lower PAH composition relative to end-of-life tyre-derived infill. In the six studies that investigated the metal content and composition of rubber crumb infill, Aluminium (5382 mg/kg), Zinc (5165 mg/kg), and Iron (489.6 mg/kg) had the highest median concentrations. There were minor differences in heavy metal concentrations found in newly installed synthetic turf compared to older turfs and synthetic sporting fields exposed to direct sunlight (versus indoor fields). There were two epidemiological studies on synthetic turf rubber crumb infill (one ecological and one cross-sectional study), which found no significant associations between synthetic turf exposure and the incidence of leukemia, non-Hodgkin lymphoma, and Hodgkin lymphoma. Similarly, one metabolomic study of urine samples from athletes taken pre- and post-match on synthetic turf, and two studies simulating dermal, ingestion, and inhalation exposure concluded that there was no elevated health risk associated with playing on synthetic turf pitches. Currently, there is very limited evidence of an association between synthetic turf use and adverse health outcomes. Considering the ubiquitous use of synthetic grass globally and the scarcity of epidemiological studies, there is a vital need for further research based on longitudinal study designs and more robust exposure assessments, to help improve our understanding of any potential health risks associated with synthetic turf infill exposures. Full article

Background: Methicillin-resistant Staphylococcus aureus (MRSA) is an important health issue that is estimated to have caused 130,000 deaths worldwide in 2021. As more instances of cross-species transmission of MRSA have been reported, concerns have been raised regarding the spread of livestock-associated MRSA to humans. The prevalence of MRSA in livestock varies globally. This study systematically reviews the prevalence of MRSA at the farm and animal levels in Japan. Methods: Relevant studies published in English or Japanese between 2000 and 2023 were retrieved from four databases. Pooled prevalences at the farm and animal levels in Japanese farms were calculated using a random-effects model. Subgroup and meta-regression analyses were also performed to explore sources of heterogeneity. Results: The 13 studies included in this meta-analysis yielded an MRSA prevalence of 3.54% (95% confidence interval [CI] 0.65–8.30%) at the individual pig level, 13.07% (95% CI 5.42–23.04%) at the pig farm level, 0.0% (95% CI 0.00–0.04%) at the individual cattle level, and 0% (95% CI 0.00–0.44%) at the individual chicken level. A significant increase in MRSA prevalence over time was evident at the individual pig level by both subgroup analysis (p = 0.020) and meta-regression (p = 0.019). Conclusions: Our results indicated that the proportion of pigs that can be a source of MRSA infection in humans has been steadily increasing in Japan. Despite some limitations, our findings strongly imply a need for more attention to pig-to-human MRSA transmission in Japan. Full article

Epidemiological studies indicate that heart failure (HF) prevalence and associated mortality are significantly higher among Eastern European countries as compared to their Western European counterparts. The significant financial burden on the healthcare system matches these sobering data. Thus, efficient programs for patients with HF have been called for. N-terminal prohormone of brain natriuretic peptide (NT-proBNP) represents a widely used, cost-effective, and readily available test that can be used to evaluate HF risk. However, it should not be used as a universal assessment, given the existing variability in proposed cut-off scores for various subgroups of patients. Thus, the clinical context needs to always be considered, and alternative diagnoses need to be ruled out. Based upon evidence from the literature for the above assumptions, the advantages and limitations of using NT-proBNP in primary care settings, along with other HF diagnostic modalities, are discussed in this paper. Also, this paper argues that an effective primary care network, in collaboration with specialist providers, may avoid a delay in HF diagnoses, may help provide on-time treatments, and may ultimately cut unnecessary healthcare expenditures associated with HF hospitalizations. Therefore, the present paper proposes an algorithm for diagnosing HF in primary care settings and discusses specific knowledge and skills that family physicians should be well equipped with in order to successfully respond to the needs of their patients with HF. Full article

Irisin is a protein resulting from a proteolytic cleavage of fibronectin type III domain-containing protein 5 (FND5). The ability of irisin to modulate adipocyte and control glucose metabolism in human metabolic diseases gave rise to the hypothesis that irisin could have a pivotal role in aging-related diseases. Although in animal models, increased levels of irisin have been positively associated with better health outcomes, in humans, its role remains controversial. To provide an overview of the main finding on irisin in older adults, a comprehensive search was performed through the MEDLINE-PubMed, Web of Science, Scopus, and Cochrane databases for studies conducted in older adults (≥60 years) published since 2012. After grouping and analyzing the articles based on diseases associated with older adults, the main conclusion of this narrative review is that the included studies did not yield consistent evidence regarding the association between irisin and health or disease in older adults. Further studies are necessary to clarify the effective role of this protein in promoting health and longevity. Full article

Background: Ministerial Decree (D.M.) 77/2022 aims to reform Italy’s primary care system by establishing community health centres and integrating digital tools to address healthcare access disparities and workforce shortages. This review focuses on frailty assessment tools, digital health innovations, and workforce challenges in the Autonomous Province of Bolzano, South Tyrol, emphasising interprofessional trust and collaboration issues. Methods: Using a narrative custom review approach guided by the SANRA checklist, this study synthesised findings from PubMed, official health websites, and regional surveys on frailty, workforce dynamics, interprofessional collaboration, and digital infrastructure in South Tyrol. Results: General practitioners (GPs) exhibited high professional motivation but expressed concerns about autonomy and administrative burdens in collaborative care models. Trust issues between GPs and specialists hinder workforce cohesion and care coordination, highlighting the need for structured inter-professional communication. Frailty assessments, such as the PRISMA-7 tool, identify over 33% of community-dwelling individuals aged 75 years and older as frail, necessitating targeted interventions. Digital health adoption, particularly electronic health records and telemedicine, is slow because of workforce shortages and infrastructure limitations. Conclusions: The successful implementation of D.M. 77/2022 in South Tyrol requires addressing workforce challenges, improving interprofessional trust, expanding digital infrastructure, and integrating frailty assessment findings into care strategies. These measures are critical for achieving a more resilient, equitable, and effective primary healthcare system. Full article

Introduction: Bovine neosporosis represents a significant threat to reproduction and production in livestock systems worldwide. This disease is caused by the protozoan Neospora caninum, resulting in abortions of cows and neurological signs in newborn calves. This leads to significant economic losses, decreasing meat and milk production, especially in tropical regions. The infection has an endogenous and exogenous cycle of transmission involving dogs that shed the oocysts, with the highest transmission successes in humid areas. Similarly, there is a lack of knowledge about the epidemiological risk factors and management practices involved in the transmission success in tropical humid regions. Methods: In this sense, a cross-sectional epidemiological survey was conducted on 150 farms from 24 municipalities of the Huila area. A total of 360 cattle were sampled, and information about the production system was collected using a structured poll with 128 questions. Results: In these cattle, 53% (191/360) were positive for antibodies against Neospora caninum using ELISA. The logistic regression analysis using the information collected from the poll identified the presence of flooring type, water access, production systems, and feed management as risk factors. Among the protective factors were identified the geographical area, molasses supplementation, and biosecurity practices such as animal separation and access control. Discussion: This study identified for the first time the epidemiological risk factors associated mainly with the exogenous cycle of neosporosis. The present study contributes to the design of intervention strategies oriented to minimize the impact of parasitism in Colombian herds. Full article

Background: Vitamin D and iron deficiencies are prevalent among Moroccan women of reproductive age (WRA). Research suggests that Vitamin D deficiency (VDD) may impair iron bioavailability, potentially leading to iron deficiency (ID) and anemia. Objectives: This study investigates associations between vitamin D status, iron levels, and anemia risk in WRA, aged 18–49, from Meknes, Morocco. Methods: A cross-sectional study was conducted among 463 participants, measuring serum 25(OH)D, blood count parameters, iron, ferritin, C-reactive protein, and creatinine. Lifestyle factors, including dietary intake, sun exposure, and physical activity, were assessed through validated questionnaires, and anthropometric data were collected. Linear and logistic regression models analyzed associations, while ROC analysis evaluated VDD’s predictive accuracy for ID and anemia. Results: VDD (25(OH)D < 20 ng/mL) was significantly associated with reduced hemoglobin, hematocrit, red blood cells, and ferritin (all p < 0.01), indicating vitamin D’s role in erythropoiesis and iron storage. Multivariate logistic regression showed that VDD increased the risk of anemia (OR: 7.17, 95% CI: 3.19–19.28, p < 0.001), ID (OR: 2.20, 95% CI: 1.32–3.77, p = 0.007), and IDA (OR: 4.10, 95% CI: 1.73–12.08, p = 0.004). Dietary iron intake was inadequate, showing minimal protective effects against anemia and ID (β(SE): −0.08(0.03), p = 0.030 and β(SE): −0.05(0.02), p = 0.037). Conclusions: VDD is a significant risk factor for impaired iron status and anemia in Moroccan WRA, highlighting the need for targeted nutritional interventions and further research. Full article

Background/Objectives: The present study aims to identify information from health research studies that have used a mixed-methods data collection approach, considering the combination of face-to-face and telephone interviews (referred to as the MMFT approach), specifically focusing on identifying themes, objectives, designs, populations involved, and implementation processes. Methods: A scoping review was developed, with systematic searches performed in March 2024 across five databases, namely, PubMed; SciELO; Scopus; Web of Science; as well as Google Scholar and reference lists. The inclusion criteria were defined under the following categories: “Participants” (observational epidemiological studies, with no restrictions as to where they were carried out, sampling techniques, or sample profiles); “Concept” (use of MMFT in data collection), and “Context” (studies carried out in the health area, with no restrictions on the theme/subject). The review process was carried out by three researchers who worked independently. Results: From the initial 1515 potential references, the synthesis of this review included data from seven original studies, highlighting cross-sectional designs, involvement of adults and/or elderly people without specific health conditions, variability between data collection strategies, and complementary use of online approaches. Conclusions: Based on the evidence generated, it is recommended that future studies assess aspects of the MMFT approach in terms of response rate, cost reduction, and increasing the speed of conducting health surveys. Full article

Background: Tracheal Bronchus and Lung cancers (TBL) represent one of the leading causes of cancer deaths worldwide. This study aimed to examine the disease and economic burden of TBL cancers in 185 countries worldwide in 2022. Methods: The estimates of TBL cancer incidence and mortality (counts and age-standardized rates) were obtained from the GLOBOCAN 2022 data produced by the International Agency for Research on Cancer. Mortality-to-incidence ratios (MIR) were utilized as a proxy of 5-year survival rates. Multivariate regression was utilized to examine the association between TBL cancer burden and tobacco use prevalence. Results: Globally, there were 2.48 million incident cases and 1.82 million deaths due to TBL cancers in 2022. Males accounted for 63.4% of incident cases (1.57 million) and 67.85% of TBL deaths (1.23 million) in 2022. For both sexes combined, the age-standardized rate was 23.1 per 100,000, and the age-standardized mortality rate was 16.8/100,000. The Mortality-to-incidence ratio (MIR) at the global level stood at 0.71. Eastern Asia had the largest burden of TBL cancers among the 21 UN-defined regions, with around 51% of incident cases (1.24 million) and 46.9% of global deaths (851,876), followed by Northern America (incidence: 257,284; deaths: 150,675) and Eastern Europe (incidence: 158,141; deaths: 126,840). At the country level, human development index (HDI) and adult tobacco use prevalence could explain 67% and 64% variation in ASIR and ASMR, respectively. HDI was statistically significantly related to MIR, explaining a 48% variation in MIR. Conclusions: With 1.9 million deaths in 2022, TBL cancer is a significant global cause of mortality. Despite the knowledge and awareness of smoking and lung cancer, adult smoking rates remain high in many countries, including the United States and China. Renewed and sustained global efforts are needed to reduce smoking prevalence and PM2.5 levels, particularly in China and low- and middle-income countries. Full article

Voluntary blood donation plays a crucial role in public health by ensuring a stable supply of blood and its components, essential for medical treatments including surgeries, trauma care, and chronic disease management. Voluntary donors, often healthier individuals, enhance the safety of the blood supply and play a vital role in emergency preparedness. Beyond its societal benefits, regular blood donation may offer health advantages for donors, including improved cardiovascular health due to reduced iron levels and psychological benefits stemming from altruism and a sense of social responsibility. Public health initiatives are instrumental in fostering blood donation through education, awareness campaigns, and targeted donor recruitment strategies. These efforts encourage a culture of social responsibility, inspiring community participation and improving overall healthcare system sustainability. Despite these efforts, challenges such as fluctuating donation rates, aging populations, and shifting demographics underscore the need for ongoing initiatives to ensure a sufficient blood supply. As a public health priority, voluntary blood donation demands continuous promotion and innovation to meet the growing demand for blood products and maintain healthcare system resilience. This review highlights the public health significance of voluntary blood donation, with particular focus on its benefits for donors and its role in supporting healthcare systems. Full article

Poland suffered an epidemic of louse-borne typhus from 1916–1923, with 400,000 cases and more than 130,000 deaths. The causative factors were depressed economic conditions and a refugee crisis that engulfed Poland after World War I. The recognition of the epidemic in 1919 stimulated the creation of the League of Red Cross Societies (LRCS). However, the LCRS had limited resources, and the Poles requested help from other governments and the League of Nations (LoN). The United States sent the American–Polish Relief Expedition to conduct delousing. However, the Polish–Soviet War of 1920 disrupted typhus control and exacerbated the refugee situation. The LoN belatedly organized an underfunded Epidemic Commission. The LCRS sent a research team that did groundbreaking work on the pathology of typhus. Into 1921, the epidemic continued, driven by refugees from typhus-stricken Russia. By 1924, typhus cases were finally approaching pre-World War I levels. Multiple factors lead to the amelioration of the epidemic. The repatriation of prisoners of war and displaced civilians had concluded by 1923. Also, there had been a steady influx of sanitary, food, economic, and medical aid from various organizations into Poland since 1919. Administratively, within Poland, the anti-typhus campaign was also conducted more effectively by the Extraordinary Epidemic Commissariat. Full article

Background: Puerto Rico (PR) has experienced significant demographic changes, characterized primarily by an aging population and an unprecedented exodus of medical doctors. Ophthalmologists are of particular concern as they commonly serve older populations, and the island has high rates of some age-related eye diseases in the United States (US). Our research aims to investigate the factors driving ophthalmologists in PR to emigrate to the mainland US. Methods: This is a cross-sectional study among ophthalmologists in PR, using survey data collected from May to June 2023. This study recruited a convenient sample of all ophthalmologists practicing in PR via outreach in person and online communities. The survey covered various types of challenges faced by ophthalmologists, their demographics, and practice details. STATA/BE 18 statistical software was used for data analysis. Statistical tests, such as chi-square and proportion tests, were performed, stratifying results by age, gender, subspecialty, geographic health districts, experience, and practice type. Results: Among 130 of the estimated 218 ophthalmologists in PR, insurance/billing issues were identified as the primary challenge to practicing in PR and the primary reason to leave PR. The challenges that were identified included required authorizations for patient care, unjustified claim rejections, and threats of contract cancellation. We found that new ophthalmologists (≤15 years of practice) faced more specific challenges than experienced ophthalmologists (>15 years of practice), such as difficulty in obtaining insurance contracts. Conclusions: Insurance/billing issues are a pervasive concern for ophthalmologists in PR. New ophthalmologists are disproportionately affected by these challenges, potentially leading some to find employment outside of PR. There is a need for targeted policies—regulation of insurance contracting and increased reimbursement from private insurance plans—to reduce insurance contracting barriers for keeping a sustainable physician workforce in PR. Full article

Background/Objectives: This narrative review examines resilience and social reconstruction strategies implemented during the 1742–1743 plague along the Royal Road between Buenos Aires and Lima. The study explores how colonial authorities managed the epidemic and its long-term effects, providing insights into historical crisis management and public health governance. Methods: A systematic analysis of primary and secondary historical records was conducted to identify public health measures, such as quarantines, hospital construction, and administrative reforms. Sources were retrieved from archives and databases, focusing on resilience strategies and institutional responses to the epidemic. Results: The findings highlight key public health interventions designed to contain the epidemic and mitigate its impacts. These included the establishment of quarantines, the construction of temporary hospitals, and administrative adaptations. Religious practices, such as novenas and community prayers, complemented institutional responses. The study underscores the role of colonial governance in adapting under epidemic pressures, illustrating an emergent institutional resilience. Conclusions: The 1742–1743 plague along the Royal Road serves as a case study for understanding the intersection of health crises and institutional adaptability. The review emphasizes the importance of coordinated public health measures and governance in addressing pandemics, offering lessons on resilience and social reconstruction applicable to contemporary health crises. This historical perspective enriches current discussions on crisis management and public health policy. Full article

Background: The purpose of this study was to compare the opinions of biomedical students from Russia and Central Serbia about learning methods in the time of the COVID-19 pandemic. Methods: This is a comparative questionnaire study that used the validated questionnaire tool eMedQ, conducted via the online platform Anketolog.ru from February to May 2022 at Sechenov University and the University of Kragujevac in the same period. At Sechenov University, 694 students took part in the survey, while at the University of Kragujevac, the total number of participants was 209. The eMedQ questionnaire, in Russian and Serbian, consists of 45 closed-ended questions with 7 domains: demographic characteristics, experience with online teaching, education process (teaching organization), aspects of mental functioning, clinical skills, technical aspects, and quality of life. Results: During the COVID-19 lockdown, in Serbian and Russian biomedical faculties, we observed the high flexibility of Russian students with greater experience when it comes to online education before the pandemic compared to students from Serbia. Also, the Russian students declared that they were strongly motivated to achieve clinical skills and to learn, while a larger number of Serbian students reported disrupted mental functioning and learning problems. Conclusions: At the time of isolation, at Serbian and Russian biomedical faculties, we noticed the higher flexibility of Russian students with more experience than students from Serbia. Also, the Russian students declared that they were strongly motivated both to acquire clinical skills and to learn, while a larger number of Serbian students reported reduced mental functioning and learning problems. Full article

Big Epidemiology represents an innovative framework that extends the interdisciplinary approach of Big History to understand disease patterns, causes, and effects across human history on a global scale. This comprehensive methodology integrates epidemiology, genetics, environmental science, sociology, history, and data science to address contemporary and future public health challenges through a broad historical and societal lens. The foundational research agenda involves mapping the historical occurrence of diseases and their impact on societies over time, utilizing archeological findings, biological data, and historical records. By analyzing skeletal remains, ancient DNA, and artifacts, researchers can trace the origins and spread of diseases, such as Yersinia pestis in the Black Death. Historical documents, including chronicles and medical treatises, provide contextual narratives and quantitative data on past disease outbreaks, societal responses, and disruptions. Modern genetic studies reveal the evolution and migration patterns of pathogens and human adaptations to diseases, offering insights into co-evolutionary dynamics. This integrative approach allows for temporal and spatial mapping of disease patterns, linking them to social upheavals, population changes, and economic transformations. Big Epidemiology also examines the roles of environmental changes and socioeconomic factors in disease emergence and re-emergence, incorporating climate science, urban development, and economic history to inform public health strategies. The framework reviews historical and contemporary policy responses to pandemics, aiming to enhance future global health governance. By addressing ethical, legal, and societal implications, Big Epidemiology seeks to ensure responsible and effective epidemiological research and interventions. This approach aims to profoundly impact how we understand, prevent, and respond to diseases, leveraging historical perspectives to enrich modern scientific inquiry and global public health strategies. Full article

Backgound/Objectives: Cycle threshold (Ct) values of SARS-CoV-2 real-time reverse transcriptase-polymerase chain reaction (RT-PCR) tests are associated with infectivity and viral load, and they could be an aid in forecasting the evolution of SARS-CoV-2 outbreaks. The objective was to know the Ct values related to the incidence and reinfection of SARS-CoV-2 in successive outbreaks, which took place in nursing homes in Castellon (Spain) during 2020–2022, and to test its usefulness as an instrument of epidemic surveillance in nursing homes. Methods: a retrospective cohort design with Poisson regression and multinomial logistic regression were used. Results: We studied four nursing home SARS-CoV-2 outbreaks, and the average infection rate, reinfection rate, and case fatality were 72.7%, 19.9%, and 5.5%, respectively; 98.9% of residents were vaccinated with three doses of a mRNA SARS-CoV-2 vaccine. Ct values for first infections and reinfections were 27.1 ± 6.6 and 31.9 ± 5.4 (p = 0.000). Considering Ct values ≥ 30 versus <30, residents with reinfections had Ct values higher than residents with a first infection, an adjusted relative risk of 1.66 (95% Confidence interval 1.10–2.51). A sensitivity analysis confirmed these results. Conclusions: Reinfection and SARS-CoV-2 vaccination (hybrid immunity) could protect against severe disease better than vaccination alone. High Ct values suggest lower transmission and severity. Its value can be useful for surveillance and forecasting future SARS-CoV-2 epidemics. Full article

Introduction: Nurses seem to be persistently experiencing intense psychological repercussions, even after the official conclusion of the COVID-19 pandemic. In this cross-sectional study conducted after the end of the pandemic crisis, from 1 June 2023 to 30 June 2023, we evaluated the levels and explored the associations between anger, insomnia, and resilience among Greek nurses. Methods: A total of 441 nurses participated in an online survey and were invited to state their work experience, gender, and age and to complete the self-report measures of the Dimensions of Anger Reactions-5 (DAR-5), the Athens Insomnia Scale (AIS), and the Brief Resilience Scale (BRS). Results: Overall, 62.1% of the participants presented with positive scores on the AIS, and 41.5% displayed positive values on the DAR-5 scale, whereas 24.9% demonstrated scores indicative of low resilience on the BRS. A regression analysis revealed that 23.5% of the variance in the AIS scores can be attributed to the DAR-5 scores and 3% to the BRS scores. A mediation analysis confirmed the protective role of resilience, contributing as a negative mediator in the DAR-5 and AIS relationship. Conclusions: Screening for insomnia symptoms and anger issues among nurses after the end of the pandemic and implementing appropriate interventions is considered imperative to avoid long-term health consequences. Full article

Background/Objectives: To support women’s informed decisions and reproductive self-care, confident reproductive health-related knowledge is needed, supported by adequate health literacy (HL). No corresponding survey has been carried out in Hungary on inequalities to provide information addressing education. Materials and Methods: In the current cross-sectional online survey, 301 women of reproductive age (27.16 ± 0.36 years) were asked with the Hungarian versions of validated and standardised questionnaires about reproductive knowledge on hormones, ovulation, menstrual cycle, pregnancy signs and birth control (Knowledge of Female Body Scale—KFB), and HL (Brief Health Literacy Screening Tool—BRIEF). Spearman correlation and multivariable linear regression analyses were utilised, with a significance level set at p < 0.05. IBM SPSS version 28.0 (IBM SPSS, Armonk, NY, USA: IBM Corp.) and G*Power (version 3.1.9.7; Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany) software. The STROBE checklist was followed. The Clinical Trial Registry Nr. is NCT06146673. Results: The KFB composite score was high (20.01 ± 2.33); 86.374% had “high knowledge”. Still, lacking information was identified for the mechanisms of certain contraceptive methods and early physical signs of pregnancy. A significant difference was also found in the KFB scores in the case of higher age (p = 0.019), higher education level (p = 0.018) and previous live birth (p = 0.028). A positive correlation was found between KFB and HL (p < 0.001), education (p = 0.005), and age (p = 0.021). A multiple regression analysis (R² = 0.087, p < 0.001) indicated that both HL (p < 0.001) and age (p = 0.003) are potential positive predictors of adequate reproductive knowledge, whereas induced abortion (p = 0.013) might serve as an inverse predictor. Conclusions: Inequalities in women’s knowledge about their reproductive system and HL were found, and it was significantly the lowest in their highest conception probability age. Therefore, in addition to targeted education, HL also needs improvement. Full article

Although numerous observational studies have reported on the association between alcohol consumption and cancer, insufficient studies have estimated the causality. Our study evaluated the causal relationship between various types of cancer according to the frequency of drinking and the amount of alcohol consumed. The research data were obtained from the publicly available MR-Base platform. The frequency and amount of drinking were selected as the exposure, and 16 cancer types were selected as the outcome. Two-sample summary data Mendelian randomization (2SMR) was conducted to examine the causality between alcohol consumption and cancer type. Additionally, for cancers suspected of pleiotropy, outliers were removed and re-analyzed through radial MR. The MR results using the inverse variance weighted (IVW) method were different before and after removing outliers. The biggest differences were found for esophageal cancer and biliary tract cancer. For esophageal cancer, after removing outliers (rs13102973, rs540606, rs650558), the OR (95% CI) was 3.44 (1.19–9.89), which was statistically significant (p = 0.02172). Even in biliary tract cancer, after removing outliers (rs13231886, rs58905411), the OR (95% CI) was 3.86 (0.89–16.859), which was of borderline statistical significance (p = 0.07223). The strongest association was found for esophageal cancer. For other cancers, the evidence was not sufficient to draw conclusions. More research is needed to understand the causality between drinking and cancer. Full article