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Background Foreign-born workers in high-income countries experience higher rates of COVID-19 but the causes are only partially known. Aims To examine if the occupational risk of COVID-19 in foreign-born workers deviates from the risk in native-born employees in Denmark. Methods Within a registry-based cohort of all residents employed in Denmark (n = 2 451 542), we identified four-digit DISCO-08 occupations associated with an increased incidence of COVID-19-related hospital admission during 2020–21 (at-risk occupations). The sex-specific prevalence of at-risk employment in foreign born was compared with the prevalence in native born. Moreover, we examined if the country of birth modified the risk of a positive SARS-CoV-2 polymerase chain reaction (PCR) test and COVID-19-related hospital admission in at-risk occupations. Results Workers born in low-income countries and male workers from Eastern Europe more often worked in at-risk occupations (relative risks between 1.16 [95% confidence interval {CI} 1.14–1.17] and 1.87 [95% CI 1.82–1.90]). Being foreign-born modified the adjusted risk of PCR test positivity (test for interaction P < 0.0001), primarily because of higher risk in at-risk occupations among men born in Eastern European countries (incidence rate ratio [IRR] 2.39 [95% CI 2.09–2.72] versus IRR 1.19 [95% CI 1.14–1.23] in native-born men). For COVID-19-related hospital admission, no overall interaction was seen, and in women, country of birth did not consistently modify the occupational risk. Conclusions Workplace viral transmission may contribute to an excess risk of COVID-19 in male workers born in Eastern Europe, but most foreign-born employees in at-risk occupations seem not to be at higher occupational risk than native born., Background Foreign-born workers in high-income countries experience higher rates of COVID-19 but the causes are only partially known. Aims To examine if the occupational risk of COVID-19 in foreign-born workers deviates from the risk in native-born employees in Denmark. Methods Within a registry-based cohort of all residents employed in Denmark (n = 2 451 542), we identified four-digit DISCO-08 occupations associated with an increased incidence of COVID-19-related hospital admission during 2020-21 (at-risk occupations). The sex-specific prevalence of at-risk employment in foreign born was compared with the prevalence in native born. Moreover, we examined if the country of birth modified the risk of a positive SARS-CoV-2 polymerase chain reaction (PCR) test and COVID-19-related hospital admission in at-risk occupations. Results Workers born in low-income countries and male workers from Eastern Europe more often worked in at-risk occupations (relative risks between 1.16 [95% confidence interval {CI} 1.14-1.17] and 1.87 [95% CI 1.82-1.90]). Being foreign-born modified the adjusted risk of PCR test positivity (test for interaction P < 0.0001), primarily because of higher risk in at-risk occupations among men born in Eastern European countries (incidence rate ratio [IRR] 2.39 [95% CI 2.09-2.72] versus IRR 1.19 [95% CI 1.14-1.23] in native-born men). For COVID-19-related hospital admission, no overall interaction was seen, and in women, country of birth did not consistently modify the occupational risk. Conclusions Workplace viral transmission may contribute to an excess risk of COVID-19 in male workers born in Eastern Europe, but most foreign-born employees in at-risk occupations seem not to be at higher occupational risk than native born.In Western countries, foreign-born people from low-income countries experience up to 5-fold higher risk of COVID-19 than native born. While cultural and socio-economic factors explain part of the increased risk, little is k

STUDY QUESTION: Is fetal exposure to lower-chlorinated polychlorinated biphenyls (LC-PCBs) in indoor air of private homes built with PCB-containing materials associated with semen characteristics and testicular volume in adult men?SUMMARY ANSWER: We observed only marginal and inconsistent associations between maternal exposure to PCBs in indoor air and semen quality, testicular size and reproductive hormones in the adult offspring.WHAT IS KNOWN ALREADY: Recent studies have shown LC-PCBs to exhibit endocrine-disrupting properties and increase the risk of cryptorchidism. Although exposure to LC-PCBs in indoor air is relatively common, the long-term impact of prenatal exposure on male reproductive health has not yet been investigated.STUDY DESIGN, SIZE, DURATION: In this cohort study, participants were men (18+ years) whose mothers carried them while living in one of two residential areas where indoor air had been contaminated by LC-PCB evaporating from building materials in subsets of the apartments. Men were considered prenatally exposed if their mother had lived in a PCB-contaminated apartment and unexposed if their mother had lived in an uncontaminated apartment for a minimum of 1 year during the 3.6 years before conception or during the first trimester. Mothers of prenatally unexposed men could not have lived in a contaminated apartment at any point. Recruitment lasted from 2017 to 2019. In total, 73 exposed and 111 unexposed men gave a blood and semen sample.PARTICIPANTS/MATERIALS, SETTING, METHODS: Percentage differences in semen volume, sperm concentration, total sperm count, morphologically normal spermatozoa, progressively motile spermatozoa and DNA fragmentation index (DFI) between prenatally exposed and unexposed men were estimated using negative binomial regression. Associations with total and calculated free testosterone (CFT), LH and FSH were modeled using the linear regression. Odds of small testicular volume was estimated

Background The comprehensive consequences of atopic dermatitis (AD) include a negative influence on work life. However, data regarding use of social benefits in patients with AD are sparse. Objective To examine the association between AD and use of social benefits, with a specific focus on paid sick leave and disability pension. Methods The study cohort comprises citizens born in the period 1964-1999 with a diagnosis of AD registered in the Danish National Patient Registry (DNPR) and a 20-fold match control group from the background population. Cross-linkage of data from 1964 up to 2015 by four national registers (the DNPR; the Central Person Register; the Register of Medicinal Product Statistics; and the Danish Register for Evaluation of Marginalisation) enabled the comparison of AD patients and controls with respect to social benefits. Prescription of systemic medication served as a proxy for AD severity. Social benefits were analysed as a function of AD status using Cox regression. Results A total of 28 156 AD patients were registered in the DNPR, and the control group comprised 473 836 individuals not registered with AD in the DNPR. AD was found to be associated with increased risk of receiving social benefits, paid sick leave in particular, and most pronounced for younger patients with severe AD (OR = 1.37, 95% CI: 1.25-1.52). The use of disability pension was increased for all groups of AD patients compared to controls and most pronounced for older patients with severe AD [HR 1.67 (95% CI: 1.45-1.93)]. Conclusion Our data emphasize that AD significantly impacts work life negatively for the patients and is a financial burden for the society.