Occupational Medicine-Oxford最新文献

Background: Shift work is associated with an increased risk of liver injury. However, whether and how shift work alters liver function remains unclear.

Aims: This study aimed to investigate the associations between shift work and the liver function parameters, and further explore the mediating roles of thyroid function indicators.

Methods: We conducted a cross-sectional study involving a convenience sample of 724 subway workers. Multivariate linear regression models were adopted to approximate the effect values for the associations of shift work with liver function parameters and thyroid function indicators. Mediation analyses were used to explore the roles of thyroid function indicators in the association between shift work and liver function parameters.

Results: Shift work was associated with increased levels of alkaline phosphatase (ALP), total triiodothyronine (TT3) and free thyroxine (FT4) (β = 6.309, 95% confidence interval [CI] 2.739-9.879, β = 0.328, 95% CI 0.242-0.415 and β = 2.913, 95% CI 1.502-2.884, respectively). In stratification analysis, the positive association between shift work and TT3, FT3 and FT4 was more pronounced among people >30 years old. The increase in shift worker FT3 and aspartate transaminase levels was stronger among alcohol users. Mediation analysis showed that TT3 and FT4 mediated 39% and 29% of the associations between shift work and the increased level of ALP, respectively (all P < 0.05).

Conclusions: The results suggest that shift work is associated with increased ALP levels of subway workers, which is partly mediated by the increase of TT3 and FT4 levels.

Background: Physicians in certain specialities are routinely exposed to procedural ionizing radiation. Their risk of cancer is unknown, including by cancer sub-types.

Aims: To assess cancer risk among exposed physicians.

Methods: This population-based case-control study was completed in Ontario, Canada, where healthcare is universal, using linkage of physician billing claims to a province-wide cancer registry. Up to five cancer-free physician controls were matched to each cancer-affected physician, by sex, and both age at and year of, entry into practice. Cumulative exposure to procedural ionizing radiation was captured by physician billing claims. Conditional logistic regression generated an odds ratio (OR) of cancer per 1000 procedures performed and as a binary exposure comparing physicians above the upper 95th percentile cumulative number of procedures (≥200) to those below this cut point.

Results: Mean (standard deviation) age of the 1265 cases and 5772 non-cancer controls was 39.7 (10.7) and 37.7 (9.0) years, and 45% and 49% were female, respectively. After a median (interquartile ranges) of 13.0 (6.9-20.4) and 12.5 (6.5-20.1) years of lookback among cases and controls, the OR of cancer was 1.02 (95% confidence interval 0.99-1.05; P = NS) per 1000 additional procedures performed. Modelling the cumulative exposure to procedures nonlinearly did not change the observed association (P > 0.40 for each). Comparing physicians above versus below the upper 95th percentile cumulative number of procedures, the OR of cancer was 1.23 (95% confidence interval 0.75-2.01, P = NS).

Conclusions: Physician exposure to procedural ionizing radiation was not associated with a higher risk of cancer. Measures that minimize radiation exposure should continue.

Background: Sinonasal carcinomas (SNC) constitute about 3% of all head and neck carcinomas, squamous cell carcinoma being the most common histologic subtype. Some geographical patterns in incidence are observed, as occupational exposure to wood dust is associated with intestinal-type adenocarcinoma (ITAC).

Aims: This study aims to describe the prevalence and characteristics of sinonasal ITAC cases in a region of northern Portugal with a robust wood industry.

Methods: A retrospective study of all sinonasal malignancies diagnosed over 5 years, in a tertiary hospital, primarily focused on ITAC subtypes. Data on sociodemographic and clinical variables were collected through electronic medical records and telephonic assessments.

Results: Of all 33 cases, 85% were ITAC. ITAC predominantly affected males (96%) with a mean age of 66.2 years. Most patients diagnosed with sinonasal ITAC had occupational wood dust exposure (96%), particularly to hardwoods. Initial symptoms included unilateral nasal obstruction (75%) and epistaxis (71%). Despite a median time of 3 months from symptoms to consultation, 50% presented at an advanced stage, with a 29% mortality rate.

Conclusions: Sinonasal ITAC is an occupational hazard of woodworkers and represents the vast majority of SNC in the region. This study advocates for targeted community interventions, emphasizing occupational safety measures and healthcare awareness to reduce morbimortality associated with this occupational cancer.

Background: Academic researchers experience high levels of stress, isolation and loneliness, which compromise their well-being. There is a particular need to address these issues amongst early career and postgraduate research staff. 'Spaces for Listening' is an initiative to increase active listening and provide peer support.

Aims: To assess the feasibility, acceptability and potential impacts of Spaces for Listening in an academic setting.

Methods: Early career and postgraduate researchers from a large university in the UK were invited to attend 'Academic Spaces for Listening' (ASfL). Five ASfL sessions (including in-person and Chinese language) were held. A mixed-methods study using online survey and in-depth interviews was conducted. Quantitative data were analysed using descriptive statistics, and qualitative data were analysed using principles of thematic analysis. The qualitative and quantitative findings were integrated at the interpretation phase.

Results: A total of 25 participants attended an ASfL session, 22 of them completed the survey and 6 participants participated in semi-structured interviews. Participants were very satisfied with the session content (68%, n = 15), organization (68%, n = 15) and delivery (68%, n = 15). Four themes were identified from qualitative analysis: (i) the 'Academic Spaces for Listening' (ASfL) experience; (2) impact of ASfL; (3) potential challenges of ASfL and (4) ASfL in the future. Interpersonal connectedness was an important outcome for participants during the session. Participants showed interest in the future of ASfL.

Conclusions: Implementing Spaces for Listening in an academic setting is feasible and was well received by participants. The initiative may fill a gap in the social interactions amongst academic researchers.

Background: Silicosis remains a critical public and occupational health issue, exacerbated by its expansion into non-traditional industries and resulting in significant global morbidity and mortality.

Aims: This study aims to investigate the death rates associated with silicosis from jean sandblasting by comparing the results of diagnosed individuals to those of the general population.

Methods: Conducted from 2008 to 2023 in Taşlıçay and Toklular villages, Bingöl City, Turkey, this retrospective cohort study analysed mortality among 220 diagnosed males versus 2851 undiagnosed residents. Data were derived from the Cohort database and validated with the Bingöl Provincial Health Directorate and the Turkish Statistical Institute. Statistical analysis involved univariate comparisons and survival analysis, utilizing the Mann-Whitney U-test, Kruskal-Wallis test and Cox proportional hazards model, with significance set at P < 0.05.

Results: The analysis revealed a silicosis mortality rate of 10% in diagnosed individuals over 15 years, notably higher than the 4% in the general population. Higher radiological profusions and younger ages at diagnosis were significant mortality factors. A radiological profusion above five notably increased the mortality risk by 1.37 times, with age and radiological density proving critical in survival rates.

Conclusions: This research highlights the increased mortality risk in silicosis patients, particularly among former jean sandblasters, underscoring the significant effects of radiological density and early age exposure on mortality, thereby addressing a crucial gap in understanding the impact of silicosis on life expectancy and community health.

Background: Mental-health-based consultations in occupational health (OH) are increasing due to ongoing changes in working life.

Aims: We studied the self-assessed mental health competence of trainees and trainers in OH specialist physician training.

Methods: We conducted an online survey from June to August 2022. We analysed how trainees and trainers in OH assessed their own competence in mental health practice with N (%) and means (standard deviation [SD]). We analysed the underlying assumptions about competences specific to OH using an explanatory factor analysis. We applied the Kruskal-Wallis test to determine differences between trainees and trainers using the variables in the factor analysis.

Results: Respondents' perceptions of mental health competence were more positive among trainers (mean 3.97, SD 0.72) than trainees (mean 3.66, SD 1.08, P = 0.2123). Based on trainee physicians' own assessments, more experience increases competence, until after 7 years, when the perceived competence seems to decrease. The trainer physicians' self-assessed mental health competence decreased over time. With factor analyses, we identified five competence factors: general mental health, workplace risks and resources, rehabilitation, promotion and prevention, and special skills. In our results, individual-level mental health competences such as work ability evaluation and to manage return-to-work processes were evaluated better than community-based proactive processes.

Conclusions: Physicians in OH specialist physician training self-assessed their mental health competence better at the employee level than at the workplace level. Based on our results, we need to develop the curriculum of OH specialist physician training to meet the needs of working life in support of mental health.

Background: In many workplaces, the coronavirus disease 2019 pandemic changed work arrangements, but there is scarce longitudinal evidence on whether psychosocial work environment and employee well-being were affected.

Aims: To examine the psychosocial work environment and employee well-being before, during and after the pandemic in relation to pandemic-induced changes (working from home, change to other tasks and team reorganization).

Methods: Survey data from a cohort of 20 944 public sector employees in Finland were collected before (2016-2018), during (2020) and after the pandemic (2022). Multilevel linear and logistic regression was used to examine group differences between the before-during and during-after periods of the pandemic.

Results: Working from home was associated with a small but favourable change in worktime control, organizational justice and social capital (scale 1-5) during the pandemic and after the pandemic (marginal mean difference ranging from 0.02 to 0.09 with 95% confidence intervals [CIs] from 0.01 to 0.10). There was a post-pandemic increase in work time control, even among participants with a transfer into other tasks (0.11, 95% CI 0.07, 0.14) or team reorganization (0.06, 95% CI 0.02, 0.10). The decline in self-rated work ability (scale 0-10) before and during the pandemic was greater in those transferred into other tasks (-0.10, 95% CI -0.13, -0.06) than in those not (-0.05, 95% CI -0.06, -0.04).

Conclusions: Working from home during the pandemic was accompanied by small favourable changes in the psychosocial work environment during the pandemic, whereas transition to different tasks was associated with a decline in self-rated work ability.