bluuebunny/crossref_metadata_2025 huggingface dataset:
P-548 OCCUPATIONAL HEALTH SERVICES FOR SMALL-SCALE WORKPLACES PROVIDED BY AN OCCUPATIONAL HEALTH NURSE IN JAPAN
Authors: NAKAO Yumi
Published: July 2024

Introduction

Small-scale workplaces with fewer than 50 employees (SSW) are not mandated but recommended to assign an occupational physician (OHP) by Occupational Health and Safety Law; however, most SSWs do not appoint an OHP. To support workplaces without OHP, the government establishes Regional Occupational Health Centers (ROHCs) in cooperation with regional medical associations which cover all regions within Japan. ROHC have assignments with occupational health nurses (OHNs) and provides minimal support for SSWs; however, the budgetary limitation of the government prevents repeated services to SSWs. Therefore, the author is promoting additional occupational health services to SSW as an independent OHN.

Results and Discussion

The author has conducted occupational health services to meet the specific needs of SSWs both as an appointed OHN at a ROHC and also as a consultant at private businesses for a decade. The provided services enabled employers and employees to become aware of their occupational health hazards and to encourage the reduction of risks. Regarding support for returning to work, the author facilitated cooperation with employees, medical doctors, managers and employers to promote adaptation of the work for the workers involved. These collaborations aided in building the reliance between medical providers and the company.

Conclusion

The occupational health services have become gradually more widespread; however, they are not yet sufficiently recognized by SSWs in Japan. It is important to keep the promotion of information and raise awareness to induce self-directed occupational health management among SSWs.
P-553 PERIODIC CONSULTATIONS PERFORMED BY OCCUPATIONAL HEALTH NURSES IN BELGIUM
Authors: Van Gulck Valérie , Coene Matthias , Gilissen Liesbeth
Published: July 2024

Introduction

Belgian occupational health services (OSH), such as IDEWE, support employers to comply with the legally required medical health surveillance of their workers. During these periodic consultations, the occupational health physician (OHP) verifies that the worker is medically fit to perform his job and the occupational health nurses (OHN) assists the OHP by performing the technical examinations. Since 2014, part of the periodic consultations at IDEWE,i.e, generally one in two, are performed only by OHN according to a specific script and with the agreement of the employer. In this study we aim to evaluate the involvement of OHN in the consultations over the years.

Methods

Retrospective analysis of the consultations performed at IDEWE since 2014.

Results and Discussion

Over the years, a clear increase in the number of consultations performed by OHN was seen, ranging from 158 in 2014 to 104.308 in 2022. In the first years, an OHP’s supervision was requested by an OHN,this for 44% of these periodic consultations, but in recent years this stagnated to only 15%. The most important reasons for asking supervision were work-related health problems based on the anamnesis, the criteria for supervision included in the script, or at the request of the worker himself.

Conclusion

The involvement of OHN in periodic consultations increases over the years, while the support they need from OHP decreases. This highlights the evolution of the OHN’s role in mandatory periodic health surveillance into a full-fledged discipline in first-line prevention that guides workers to the appropriate expert for work-related health problems.
O-364 DEVELOPMENT OF A JOB EXPOSURE MATRIX FOR ESTIMATING OCCUPATIONAL HEAT EXPOSURE: THE EPHOR EUROJEM
Authors: Pronk Anjoeka , Scholten Bernice , Kelly Blaise , Kingma Boris , Schlünssen Vivi , Gosh Manosij , Notø Hilde , Turner Michelle C , Solovieva Svetlana , Ge Calvin , Kolstad Henrik , Selander Jenny
Published: July 2024

Introduction

With climate change occupational heat stress is an increasing concern. For studying its health effects in cohort studies, objective systematic characterization of occupational heat stress is needed. Within the EU EPHOR project we develop a European job exposure matrix (JEM) for assignment of indoor and outdoor occupational heat exposure by job title and region.

Methods

A conceptual modular framework including thermal environment and job characteristics has been developed for the assessment of total annual working hours above the wet bulb globe temperature reference value by job (ISCO88(COM)) and region, based on ISO 7243 (WBGT) and 9920 (clothing). Outdoor thermal environment is modelled across Europe using historical meteorological data including temperature, radiation, humidity and windspeed. Occupational characteristics, i.e. percentage of time spent indoors, presence of temperature control and a local source, work clothing and occupational physical activity, are based on existing data and expert judgment.

Results

First results of the environmental modeling demonstrate a clear regional pattern across Europe. The assessment of a time trend due to climate change and of the occupational input parameters are ongoing. The presentation will provide an overview of the framework and a preliminary heat JEM.

Discussion and conclusion

Combining many factors such as meteorology and local sources, physical activity and clothing complicated JEM development. By basing the JEM on a transparent modular framework, it will be updatable when more objective data become available or extendable to other regions. This JEM can be used to study health effect of occupational heat exposures in European cohorts.
O-369 THE EFFECTS OF CONSTANT AMBIENT TEMPERATURE ON ALERTNESS: POTENTIAL BENEFITS OF DYNAMIC CONDITIONS IN OFFICES
Authors: Christoforou Rania , Pallubinsky Hannah , Maria Tobias , Rewitz Kai , El-Mokadem Mahmoud , Bardey Janine , Müller Dirk , Schweiker Marcel
Published: July 2024

Introduction

Studies support the association of core body temperature with the circadian rhythm and cognitive performance aspects, including alertness. Additionally, evidence shows that lower ambient temperatures improve cognitive performance. However, less is known on the dynamic effect of ambient temperature on alertness, which could also follow the circadian rhythm. This study aimed to investigate changes in alertness throughout the day under two different thermal conditions.

Methods

Participants (NTotal=31, NFemale=16, NMale=15, Average age: 40.7 years) attended a two-day hybrid (laboratory and field) study, which included a cross-over design exposure to two different thermal conditions (cool condition: 21 °C, warm condition: 28 °C) for 8 hours in a simulated office environment. They were asked to answer questions on how alert they were feeling at regular intervals throughout the day, also in their home environment. Ambient temperature was monitored continuously with the use of a non-commercial, tailor-made sensor.

Results

The results indicate an interaction effect of condition-by-time on the levels of reported alertness (F(15, 21)=6.245, p =.01). Participants reported being more alert in the morning, when they were exposed to the warm condition, compared to the cool condition. However, a sudden reduction in alertness level was observed in the afternoon when they were exposed to the warm condition, compared to the cool condition, in which participants showed increases in alertness.

Discussion

These outcomes suggest that constant temperatures in offices might not be ideal for enhanced alertness.

Conclusion

It is suggested that offices might benefit from dynamic temperature exposures that go against the circadian rhythm of body temperature.
O-371 HIGH HEAT DAYS, THERMAL IMPACTS AND EMERGENCY PRESENTATIONS ACROSS RURAL SOUTHWEST VICTORIA, AUSTRALIA
Authors: Brumby Susan , Adams Jessie , Kloot Kate , Baker Tim , Hewson Elvira
Published: July 2024

Introduction

Heat kills more Australians than other natural disasters. On high heat days increased presentations to metropolitan emergency departments (EDs) are reported with little research on rural/regional locations where outdoor workers (farmers) are at thermal risk.

Aim

This study aimed to determine if ED presentations across the rural southwest region of Victoria, Australia increased on high-heat days in farming and non-farming populations.

Materials and Methods

This retrospective study used the Rural Acute Hospital Register (RAHDaR) to investigate heat-related presentations to nine emergency departments (ED) located in rural southwest Victoria between 1st February 2017 and January 2020. The ICD-10-AM (Australian Modification) codes associated with heat-impacted conditions were identified from previous research. High-heat days equaled temperatures above 95th percentile.

Results

There were 61,632 presentations of residents from the nine EDs during the 453 study days. Of these, 3,064 (5.0%) were on high-heat days and 58,568 (95.0%) on non-high heat days. Injury was the most common presentation. On days of high-heat, farmers were 17% less likely to present than non-farmers. However, presentations for circulatory and respiratory conditions increased on high-heat days for farmers. Farmers were more likely to arrive by private transport.

Conclusion

There is a need for localised public health responses at specific temperature thresholds. Days of high heat saw increased risk of circulatory and respiratory illness particularly for farming communities. However, lower presentations for injuries on high-heat days was seen for both cohorts. New research on comparing ED presentations before heat day with high heat day and 3 days after will be presented.
P-557 CURRENT SITUATION AND COUNTERMEASURES FOR HEAT-RELATED ILLNESSES IN JAPAN
Authors: Togawa Mai , Nagano Chikage , Horie Seichi
Published: July 2024

Introduction

Heat strokes have become a serious occupational health problem in Japan. Therefore, the Japanese government has released a series of guidelines to prevent them.

Methods

We collected the official reports publicized by the Occupational Health Division of the Ministry of Health, Labor and Welfare of Japan and summarized the number of work-related cases of heat-related illnesses in Japan, as well as the preventive measures officially recommended in the documents.

Results

In 2022, the number of heat-related illnesses in the workplace required 4 or more workday loss was 827 including 30 fatalities. Cases occurred in the construction and in the manufacturing industries accounted for 179 and 145, respectively. Labour inspectors investigated the fatal cases and pointed out the failures to measure Wet-Bulb Globe Temperature (WBGT) in 25 cases, to perform emergency response training in 26 cases, and to deliver emergency care in 28 cases.

Discussion

The governmental guideline named “STOP! Heat Stroke Cool Work Campaign” has been announced every year since 2017 and repeatedly emphasized the importance of WBGT; however, it seems its measurement are still uncommon. As various devices and websites are now available to directly measure or estimate WBGT all over Japan, it is expected that its measurement will become widespread to prevent heat-related illnesses arising at work by the end of the five-year national plan for preventing occupational diseases.
O-379 COMPLEX NOISE MEASUREMENT AND EVALUATION BASED ON NOISE KURTOSIS ADJUSTMENT
Authors: Zhang Meibian
Published: July 2024

Introduction

Hearing loss is a global public health concern. Occupational noise-induced deafness is the second most common occupational disease after pneumoconiosis in China. The prevalence of hearing loss among manufacturing workers was 21.3%. Non-steady noise (complex noise) is the primary type of industrial noise to which workers are exposed. Existing noise standards do not consider the temporal structure of noise, resulting in an inaccuracy of complex noise measurements and an underestimation of hearing loss.

Methods

Our Chinese team applied a cross-sectional survey to collect data about noise exposure and hearing loss from more than 4000 manufacturing workers.

Results

The temporal structure of noise was a risk factor for occupational hearing loss. Noise kurtosis, a sensitive indicator indirectly reflecting the temporal structure, could be an auxiliary parameter to adjust the noise equivalent sound level. The adjusted noise level had a good dose-response relationship with hearing loss risk, which could help reduce the underestimation of occupational hearing loss predicted by the ISO 1999 model, and effectively assess the occupational hearing loss caused by different types of noise.

Discussion and conclusion

Kurtosis and its adjustment for noise level can be applied to revise the existing noise exposure standards or risk management guideline.
P-573 CRYOGLOBULINS AND COLD AGGLUTININS FOR HAND ARM VIBRATION SYNDROME
Authors: Alsaidi Yaqoub
Published: July 2024

Introduction

Hand arm vibration syndrome (HAVS) affects the vascular, neurological and musculoskeletal systems. The vascular component of HAVS is a form of secondary Raynaud’s phenomenon. Secondary causes must be excluded before attributing the cause to hand transmitted vibration. This study aims to evaluate the prevalence, and utility of testing for, cryoglobulins and cold agglutinins in patients with HAVS symptoms.

Methods

A retrospective cohort study of 1183 patients referred for HAVS clinical assessment at St. Michael’s Hospital, Toronto, Canada, between 2014 and 2020. Data were retrieved from patient chart review and laboratory investigation results for all cases with cryoglobulin and cold agglutinin testing.

Results

Serum cryoglobulin measurement showed eleven patients were positive. Seven of them were ‘low titre’ (1% positive) and the other four results were 2%, 6%, 9% and 18%. There were no positive cold agglutinin tests in the 795 patients tested.

Discussion

History and abnormal laboratory parameters including CBC, ESR RF and ANA are the best guides for conducting a cryoglobulin test while cold agglutinins testing appears to have no utility in the evaluation of vascular HAVS. By testing patient who has an autoimmune disease or medical condition associated with cryoglobulinaemia, or RF are positive with or without ANA, or abnormal CBC, or ESR and clinical presentation is suggestive of cryoglobulinaemia, 9 of the 11 positive cases would have been detected from 1183 patients tested that account for <1%.

Conclusions

Routine testing for cryoglobulins and cold agglutinins in patients with HAVS symptoms is not recommended because test positivity rates are negligible.
P-574 SALIVA CORTISONE IN NOISE-EXPOSED WORKERS
Authors: Žaja Roko , Stipičević Sanja , Ries Mihael , Milošević Milan
Published: July 2024

Introduction

Human saliva and blood cortisol are biomarkers of noise-induced stress. In the salivary glands, the free fraction of blood cortisol is converted into the saliva cortisone, which is more concentrated in saliva than the cortisol. Data on the saliva cortisone concentration in noise-exposed workers are scarce.

Methods

The study included 104 (57.7% male and 42.3% female) 19-30 years old participants split in two groups. A group of 50 workers was regularly exposed to occupational noise (loud music and machines) 1-2 years before the enrolment in the study. The level of intensity was at least 85 dB(A), and exposure to ototoxic solvents was excluded. Another group of 54 medical students was not exposed to occupational noise. Saliva was collected by a synthetic fiber roll that was kept in the mouth and then centrifuged. In extracted saliva, the cortisone and the cortisol were determined by high-performance liquid chromatography. All of the participants were not currently using oral or intranasal corticosteroids.

Results

Saliva cortisone concentration was significantly higher in noise-exposed workers (32.4, IQR 18.5-49.8 nmol/L) compared to students (21.2, IQR 18.0-23.6 nmol/L), P<0.001. Saliva cortisol concentration was significantly higher in noise-exposed workers (6.9, IQR 8.7-11.2 nmol/L) compared to students (6.8, IQR 6.1-7.1 nmol/L), P<0.001.

Discussion

Noise-exposed workers had high saliva concentrations of both cortisone and cortisol.

Conclusion

Further investigations should consider other causes of the increased saliva cortisone concentration, and explore correlation between saliva cortisone and audiological findings of noise-induced hearing loss. Conclusion Saliva cortisone could be considered as a biomarker of noise-induced stress.
P-577 A TIME-DEPENDENT HOLISTIC MODEL OF HEARING PROTECTION DEVICES (HPD) USE: THE EFFECT OF TIME ON HPD COMFORT AND HPD-RELATED HEALTH BEHAVIORS
Authors: Gauvin Chantal , Negrini Alessia , Terroir Jonathan , Jolly Caroline , Martin Laurence , Doutres Olivier
Published: July 2024

Introduction

Hearing protection devices (HPDs) are widely used to reduce noise exposure in workplaces. The effectiveness of this noise control strategy is questionable, however, as HPDs are sometimes not used at all, or are used inconsistently and/or incorrectly.

Methods

Understanding these unhealthy behaviors and their origins is therefore essential in order to propose solutions to improve the effectiveness of this preventive measure against noise-induced hearing loss.

Results

Numerous models based on social cognition theories identified the significant factors facilitating or hindering the workers’ health behaviors related to the HPDs use. Nevertheless, these models did not focus on physical and psychosocial characteristics of the triad “environment/person/HPD” which can influence HPDs use. Following a transdisciplinary approach, this communication presents a time-dependent holistic model of HPD use, based on the integration of a comfort model adapted to HPDs into an existing behavioral model. A comfort model dedicated to HPDs was first developed to account for the complex mechanisms from which comfort-related barriers and benefits originate. This model was then integrated in an existing social cognition model to predict HPD-related health behaviors accounting for the comfort dimensions (physical, functional, acoustical, psychological) and the influence of the triad.

Discussion and conclusion

Finally, the temporal dimension of behavioral change was taken into account to capture the scope of change in HPD-related health behaviors. This holistic description of HPDs use could be applied to: (i) identify the characteristics of the triad significantly associated to comfort and HPD-related health behaviors; (ii) improve hearing protection training programs; and (iii) increase HPDs use to prevent hearing loss among workers.
O-385 POSTPARTUM DEPRESSION AMONG WOMEN RETURNING TO WORK ONE YEAR AFTER DELIVERY: A FOLLOW-UP STUDY IN BEIJING, CHINA
Authors: Zhao Jian , Zhang Min
Published: July 2024

Introduction

Postpartum depression (PPD) is a critical public health concern with detrimental effects on maternal well-being and child development. This study aimed to examine the depression status and related factors among working postpartum women.

Methods

A cohort of 424 postpartum women from ten community health service centers in six Beijing districts was investigated. Sociodemographic, occupational, and childbirth information was collected from Maternal Health Manuals and Community Maternal and Child Health Records. One year after childbirth, data on breastfeeding, maternity care, and depression status using the Edinburgh Postnatal Depression Scale (EPDS) were obtained. Prevalence of PPD was assessed in relation to occupational characteristics, and influencing factors were analyzed through logistic regression.

Results

27.83% of postpartum women met the criteria for depression (EPDS score ≥ 13). PPD prevalence was significantly higher among women employed in business and enterprise management (35.80%) compared to unemployed individuals, physical workers, and professionals, government office & public institution employees (20.78%, 20.75%, 25.00%, respectively). Among women employed in business and enterprise management, receiving care from relatives (OR=0.389, 95%CI: 0.185-0.815) is negatively associated with PPD. Conversely, middle-income status (OR=5.774, 95%CI: 2.092-15.940), shorter maternity leave (OR=2.099, 95%CI: 1.005-4.385), having a baby with poor health (OR=2.392, 95%CI: 1.067-5.361), and mixed feeding (OR=2.461, 95%CI: 1.172-5.169) were positively associated with PPD.

Discussion and conclusion

PPD prevalence is notably elevated among women employed in business and enterprise management, and specific risk factors contribute to its occurrence. These findings highlight the need for targeted interventions to address these risk factors and prevent PPD in this population.
O-388 FROM PERIOD POVERTY TO PERIOD POSITIVITY- EFFECTIVENESS OF WORKPLACE WELLNESS INITIATIVES ACROSS GARMENT FACTORIES IN INDIA
Authors: Joseph Merlyn , Joseph Bobby , Dishani Madonne Rufina
Published: July 2024

Introduction

Many women in the Indian subcontinent experience societal taboos, social isolation, and harassment during menstruation. This plight is exacerbated among garment workers, many of whom are migrants subjected to arduous work conditions and limited healthcare access. Objectives: This study aims to gauge the impact of a Training of Trainers (ToT) model on menstrual health awareness and practices within the apparel manufacturing sector in India.

Methods

Employing a quantitative before-and-after approach, the study encompassed 483 participants from 15 Indian factories and 3 Sri Lankan counterparts, selected through convenience sampling. Female workers were educated through a multi-module approach, covering reproductive health, menstrual hygiene, and innovative menstrual products. These workers were then empowered to share this knowledge within their factory communities through visual aids and presentations. Data analysis utilized SPSS v.21 and included z-proportion tests and paired t-tests.

Results

The majority of participants were under 35 years (72%) with a mean age of 30.8±8.4 years, most having attained secondary education (40%). While 45.3% faced menstrual issues, only 29.8% sought healthcare. Enhanced awareness about eco-friendly menstrual products and menstrual impact was evident, with menstrual cup usage increasing from 0.2% to 6.6% (p<0.001). Positive practices such as timely pad disposal and hygienic practices improved significantly.

Discussion-Conclusion

Challenges encompassed discomfort, staining, extended work hours, and inadequate pad access. The study underscores the effectiveness of targeted peer-led menstrual hygiene training in advancing women’s awareness, practices, and perspectives on menstruation. To further promote inclusivity and sensitivity, the involvement of factory management and male workers is recommended.
P-584 UNDERSTANDING BURNOUT AMONG CANADIAN MEDICAL LABORATORY PROFESSIONALS WORKING DURING THE SECOND WAVE OF THE COVID-19 PANDEMIC IN ONTARIO, CANADA: USING A GENDERED-BASED ANALYSIS
Authors: Nowrouzi-Kia Behdin , King Emily , Edwards Brydne , Nizzer Sonia , Yazdani Amin , Gohar Basem , Bani-Fatemi Ali , Howe Aaron , Chattu Vijay Kumar , Nowrouzi-Kia Behdin , Gohar Basem , Howe Aaron , Chattu Vijay Kumar , Bani-Fatemi Ali
Published: July 2024

Introduction

Medical laboratory professionals are mostly women and play a crucial role in delivering health services and provide and perform millions of tests daily on blood, body fluids, cells and tissues. The study examined the mental health and well-being of medical laboratory professionals working during the second wave of the COVID-19 pandemic.

Methods

A sequential explanatory mixed-methods study was conducted to explore mental health outcomes in medical laboratory professionals, including medical laboratory technologists, medical laboratory assistants, and medical laboratory technicians, working in Ontario, Canada. A self-reported questionnaire on burnout and job stress was administered, and Two focus groups were also conducted. Thematic analysis was used to develop themes and subthemes.

Results

A total of 441 (47.5% response rate) medical laboratory professionals completed the survey. Most of the respondents self-identified as female (90.2%). Most of the medical laboratory professionals were women, with a mean age of 43.1 and a standard deviation of 11.7. The prevalence of burnout was 72.3% for medical laboratory technologists. In the adjusted demographic model, those ≥50 (OR = 0.36, 95% CI: 0.22–0.59) were approximately one-third as likely to experience burnout as those under 50. The qualitative focus groups demonstrated four key themes: staff shortage, feeling forgotten, work environment, and resilience.

Discussion

There is limited research regarding the workplace mental health of medical laboratory professionals. This study provides preliminary evidence regarding their mental health and well-being in the workplace.

Conclusion

Future research is warranted to understand the relationship between the workplace mental health of these workers and its impact on their mental health.
P-587 MAIN MEASURES FOR ERGONOMIC IMPROVEMENTS IN THE WORKPLACE – WHAT CAN BE IMPROVED FOR THE VISUALLY IMPAIRED?
Authors: Troper Kamila , Mestre Pedro Miguel , Pinela Ana Sofia , Martinho Teresa
Published: July 2024

Introduction

Visual impairment is a problem that affects thousands of people. Although it is possible for a visually impaired person to perform many occupations, adequate training, technological assistance and emotional support are essential. Ergonomics can address many of the issues such as the relative ease of positioning, lighting and workplace design. Some modifications can bring quality of life and safety.

Objectives

Review the main ergonomic adaptation measures reported in the literature in order to promote better working conditions and safety measures for the visually impaired.

Methodology

Exploratory, descriptive, qualitative, non-systematic literature review study. Databases used: PubMed, ScienceDirect; ResearchGate. Final sample of nineteen studies published between 1999 and 2023 written in English and Portuguese.

Results

the main restructurings listed were Accessibility facilities and assistive technologies; Screen reader that captures information from a computer and sends it in real time to a speech synthesizer or Braille terminal; Voice recognition software installations, Monitors with enlarged screens; extension software; Adequate lighting, magnifying glasses in addition to recommendations regarding signage and unobstructed areas.

Discussion

The observed restructuring measures seek to be based on the principles of theoretical references of the ergonomic analysis of work and aimed above all at bringing ease of movement, greater safety for the visually impaired and, consequently, better working conditions.

Conclusion

Employment rates for visually impaired people are still low and need to be expanded. Improvements regarding ease of movement within the workplace, adaptation regarding the use of electronic equipment and other types of equipment, in addition to safety itself, still need to be better developed.
P-595 TRANSITION BETWEEN SOCIAL PROTECTION SYSTEMS FOR WORKERS WITH LONG TERM HEALTH PROBLEMS: A CONTROLLED RETROSPECTIVE COHORT STUDY
Authors: Collie Alex , Griffiths Daniel , Di Donato Michael , Lane Tyler , Gray Shannon , Iles Ross , Smith Peter , Berecki-Gisolf Janneke
Published: July 2024

Introduction

Many nations have established workers’ compensation systems as a feature of their social protection system. Wage replacement entitlements may end for workers with long-term health conditions before they have returned to employment. We sought to determine the prevalence of transitions to social security benefits among injured workers with long-term disability, when workers’ compensation benefits end.

Methods

Australian workers’ compensation and social security data were linked to examine receipt of social security payments after workers’ compensation benefit cessation. Study groups included (1) injured workers whose workers’ compensation benefits ceased due to reaching a 260-week limit introduced by legislative reform (N=2,761), (2) a control group of injured workers with at least 104 weeks workers compensation benefits (N=3,890), and (3) a matched community control group (N=10,114). Adjusted binary logistic regression examined the odds of transitions to social security.

Results

Within 12 months of workers’ compensation benefit cessation, 60% (N=1669) of the exposed group received social security payments, of which 41% (N=1120) received the unemployment allowance and 19% (N=516) the disability pension. Among the work injured control group, 42% (N=1676) received social security payments after workers compensation benefits ceased. Transitions to social security payments were significantly more common than community levels for both exposed (OR 25.0, 95%CI=20.7, 30.1) and work injured control groups (OR 4.7, 95%CI=4.2, 5.3).

Discussion and conclusion

Many injured workers with long-term health problems transition to social security when their workers’ compensation benefits cease. Design and implementation of policy reform should consider the social and economic impacts of transitions between separate social protection systems.
P-601 MUSCULOSKELETAL INJURY PREVENTION: A PRACTICAL IMPLEMENTATION RESOURCE
Authors: Irvin Emma , Van Eerd Dwayne , Le Pouésard Morgane , Butt Amanda , Nasir Kay
Published: July 2024

Introduction

Musculoskeletal disorders (MSDs) are a substantial burden for workers, workplaces and workers’ compensation systems. This project conducted a comprehensive synthesis of MSD prevention practices to produce an easy-to-use, evidence-based guide to aid workplaces in implementing effective MSD prevention practices.

Methods

The project had two components: i) a survey and interviews with workers, managers/OHS practitioners to describe workplace MSD practices, ii) a review of reviews of the MSD prevention literature.

Results

There were 645 survey respondents and 16 interview participants representing workers and manager/OHS practitioners from a variety of sectors/jobs with MSD experience. The review of reviews identified a total of 58 relevant systematic reviews, 21 provided evidence of sufficient quality for synthesis. The synthesis from these sources of research and practice evidence revealed:

1) awareness programs and practices for MSD prevention are often employed in practice and considered effective. However, there is a lack of research evidence for these types of programs and practices.

2) training programs and activities are considered a key element for MSD prevention in workplaces. The research evidence for training is not strong, with most studies finding no evidence of effect for MSD prevention outcomes.

3) hazard identification/solutions are often employed in practice and felt to be effective for MSD prevention. The research evidence supports hazard prevention solutions as effective for MSD prevention outcomes.

Discussion and conclusion

This project developed a practical resource to guide implementation of MSD prevention programs and practices using both practice evidence from practitioner/worker expertise along with the best available research evidence.
P-602 CHALLENGES AND LEVERS IN DISABILITY MANAGEMENT AND SUSTAINABLE RETURN TO WORK IN SMALL AND MEDIUM ENTERPRISES
Authors: Nastasia Iuliana , Coutu Marie-France , Lederer Valérie , Lecours Alexandra , Rives Romain , Labrecque Marie-Élise
Published: July 2024

Introduction

Recommended practices on disability management and return to work (RTW), mainly studied in large companies, cannot necessarily be applied in small and medium enterprises (SME). This presentation aims to elucidate some challenges and levers associated with achieving sustainable RTW in SME.

Methods

A qualitative research design, including semi-structured interviews with 8 SME managers in the manufacturing sector, and 2 focus groups with 16 external stakeholders (health professionals, ergonomists, mutual prevention agents and insurers) were conducted. Content analyses of the verbatim were performed, using a mix-coding method and an iterative and consensus-driven approach reached (3 inter-raters).

Results

Despite some interest in practices oriented towards sustainable RTW, participants indicated a lack of resources and some deficiencies in the structural frameworks hindering their effective implementation in SME. Identified challenges were the expertise and experience of those responsible for managing workplace injuries, and interfaces that complicate efficient communication between medical professionals, insurers and mutual prevention agents. These challenges appear most pronounced in smaller companies, unable to compensate for this shortfall through the close internal relationship between players. Explicit, easy-to-apply procedures, along with the support of professionals, are the main levers identified to promote sustainable RTW.

Discussion

Streamlined, collaborative and comprehensive practices emerge as essential catalysts in decision-making concerning the management of injured employees within SMEs. The emphasis on collaboration proves particularly important in such environments.

Conclusion

Innovative practices have the capacity to provide enhanced support for achieving sustainable RTW outcomes among a population of workers who frequently remain on the periphery of occupational health initiatives within smaller workplaces.
P-607 WORK REHABILITATION PROFESSIONALS’ PERSPECTIVES ON SPECIFIC ISSUES AND NEEDS OF WORKERS AGED 55 OR OVER INVOLVED IN A REHABILITATION PROCESS: A DESCRIPTIVE STUDY
Authors: Durand Marie-José , Coutu Marie-France , Sylvain Chantal , Côté Daniel , Lecours Alexandra , Léonard Guillaume , Lederer Valérie , Nastasia Iuliana , Carrière Junie , Paquette Marie-Andrée
Published: July 2024

Introduction

Work disability affects a growing number of workers aged 55 or over (W55+), but little is known about the challenges they face. This study aims to describe the perceived needs of work rehabilitation professionals in order to improve services offered to W55+.

Methods

This study used a descriptive design with purposive sampling. Occupational therapists, physical therapists, and psychologists were recruited in various workplaces. Qualitative interviews based on the work disability paradigm were conducted and transcribed, and a thematic analysis was performed.

Results

Sixteen (16) participants (average age 38 years) were interviewed, with near equal representation across men and women, as well as disciplines. The participants identified issues related to the workers themselves (e.g. less capacity to meet the work demands, mitigated engagement), the workplace (e.g. lack of recognition and support) and the insurer (e.g. lack of flexibility in certain rules). They also described how problems of communication with other stakeholders hinder interventions. Five actions aiming to (1) better equip health professionals for interventions with W55+; (2) facilitate communications; (3) support coordination; (4) raise awareness about specific issues and needs of these workers, and (5) promote integrated prevention management in workplaces are proposed to address these concerns.

Discussion

The results reveal close interactions between systems, and hence the need for action across them.

Conclusion

Perspectives of employers, insurers and workers need to be documented in order to identify and prioritize the needs to be addressed and actions to be taken to better support the return to work of W55+.
O-407 MUSCULOSKELETAL DISORDERS IN ARTISANAL AND COASTAL FISHERMEN USING LIGHT METHODS (OSHA, RULA AND OREGE)
Authors: Laraqui Hossini Chakib El Houssine , Roland-Levy Christine , Ghailan Tarik , El Kholti Abdeljalil , Deschamps Frédéric , Laraqui Omar
Published: July 2024

Introduction

The aim of this study was to screen for MSD complaints, to analyze the activity and to identify their risk factors.

Methods

This cross-sectional study involved 903 men aged > 20 years and with a seniority > 2 years. It included a questionnaire and an ergonomic analysis of the activity. The questionnaire included: socio-demographic and professional characteristics, health status and life habits, stress and items from the Nordic questionnaire. The observation of work situations required video recordings and the use of three

methods

Occupational Safety and Health Administration (OSHA), Rapid Upper Limb Assessment (RULA) and Gesture Tracking and Assessment Tool (OREGE).

Results

The prevalence of MSDs was 61.9%. It was significantly higher among deckhands than among other professionals (65.6% versus 27.4%; p < 0.001) and among seasonal workers than among permanent workers (67.8% versus 43.1%; p < 0.001). Stress was an aggravating factor, whereas leisure activities were protective. The prevalence of MSDs was 40.5% (lower back), 40.4% (wrist/hand joints), 34.6% (neck) and 31.7% (shoulders). The ergonomic analysis of the workstation was performed on a deckhand who unloaded the fish crates out of the hold of a trawler. OSHA score = 12 (normal<5); significant risk of upper limb MSD. RULA total score = 7 (acceptable between 1 and 2); immediate modification. OREGE scores evaluating effort, repetitiveness and joint positions indicate that the actions were not recommended or to be avoided.

Conclusion

The analysis made it possible to evaluate the difficulty of the job and to note a high risk of MSDs requiring ergonomic and organizational improvements.
O-408 FACTORS ASSOCIATED WITH MUSCULOSKELETAL DISORDERS AMONG INFORMAL CLEANING STAFF IN A UNIVERSITY IN SOUTHWEST NIGERIA
Authors: Ojo Temitope , Gbolade Ademola , Esebame Jesunifemi , Felix Adewale , Ebutu Olosen
Published: July 2024

Introduction

Work related Musculoskeletal disorders (MSDs) remain a significant work-Public Health concern globally, including among cleaning staff due to their high-risk tasks and often strenuous work conditions. This study assessed factors associated with work-related MSDs among cleaners in a public institution.

Methodology

A cross-sectional study of 320 informal cleaning staff employed on contract in Obafemi Awolowo University, Ile-Ife, Nigeria was conducted. A semi-structured questionnaire with questions adapted from the Nordic musculoskeletal questionnaire was used to obtain Information on socio-demographics, work practices and prevalence/sites of MSD. Data were analyzed using the SPSS version 25 and p< 0.05 was considered significant.

Results

Majority (238; 74.4%) of respondents were aged 40-60 years and most (298; 93.1%) were females. Most respondents (280; 87.5%) earned < $40 monthly and 273 (85.3%) had worked for ≤ 10years. The commonly used PPE were hand gloves (89.7%) and nose mask while 98.1% and 99.4% of respondents have never used waterproof apron or safety goggles respectively. A majority (88.1%) worked 6-8 hours daily, with 99.1% in a bent position and 83.4% stood for >2hours at a time. In the past 7 days, common MSD-affected sites were lower back (35.9%), knees (23.1%), hips/thighs (15.9%), and right shoulder (15.6%). Significant factors associated with MSD included age >60 years, no formal education, lack of prior safety training and being overweight/obese.

Conclusion

The study highlighted a significant MSD burden among cleaning staff. We recommend that employers should implement interventions like ergonomics and safety training as well as regular health screenings to reduce MSD burden and promote cleaners’ well-being.
P-610 THE POTENTIAL FOR ACTIVE BREAKS – RESULTS FROM A RANDOMIZED CROSS-OVER LAB STUDY ON THE INFLUENCE OF INTRAOPERATIVE BREAKS ON RATING OF PERCEIVED DISCOMFORT, PERFORMANCE, MUSCULAR FATIGUE AND ACTIVITY, POSTURE, HEART RATE AND VARIABILITY, WORKLOAD
Authors: Luger Tessy , Bonsch Rosina , Krämer Bernhard , Seibt Robert , Rieger Monika , Steinhilber Benjamin
Published: July 2024

Introduction

Compared to open surgery, laparoscopic surgery puts the surgeon at higher risk for developing work-related musculoskeletal disorders (WRMSD) due to long-lasting static and awkward body postures. Intraoperative work breaks showed promising results regarding perceived discomfort without prolonged surgery durations. The primary aim of the current study was to determine whether 2.5-minute passive and active work breaks would reduce ratings of perceived discomfort (RPD) among gynecologists performing simulated laparoscopic procedures compared to no work breaks. The secondary outcomes were performance, muscular activity and fatigue, upper body posture, heart rate and variability and workload.

Methods

Surgeons (9F, 12M) performed 90-minute simulations without and with breaks after 30-minute work blocks. Primary and secondary outcome parameters were recorded and the interventions were evaluated by a self-developed questionnaire. Generalized estimating equations were used for statistical analyses.

Results

RPD increased over time to a mean of 0.9 (CR10 Borg Scale) without a significant effect of intervention. The HRV-metric SDNN tended to be higher and shoulder muscular fatigue tended to be lower in the intervention conditions compared to the control condition. No significant effects of both interventions were detected for performance, muscular activity, joint angles, heart rate or workload. The overall likelihood of implementing breaks at own initiative was about 66%.

Conclusion

Intraoperative work breaks may counteract shoulder muscular fatigue and increase heart rate variability without performance loss. Active breaks have the greatest potential to be implemented and need further investigation into their acceptability, practicality and effectiveness in reducing the risk for WRMSD in future studies.
P-613 EXPLORATORY SURVEY ON THE HEALTH AND SAFETY OF RIDERS WORKING FOR DIGITAL FOOD DELIVERY COMPANIES
Authors: Boniardi Luca , Prudenzi Sofia , Campo Laura , Fasano Luciano , Natale Paolo , Carugno Michele , Pesatori Angela , Fustinoni Silvia
Published: July 2024

Introduction

Working as a rider for digital food delivery companies has become a widespread opportunity nowadays. According to the main Italian platforms, there are around 60.000 riders in Italy, of which 8.000 in Milan only. This exploratory survey aims at examining health and safety issues of riders operating in the Milan area.

Methods

The survey consisted in the administration of a questionnaire previously evaluated in terms of validity and clarity of the contents by a group of 10 experts. The recruitment and administration activities were carried out on site by involving riders directly in their main meeting places.

Results

Out of 240 responders, 98% were males, of Asian (49%) or African (29%) origin and aged between 25 and 35 (55%). 73% declared to work more than 8 hours a day, the most used vehicles were electric (46%) and regular bicycles (40%). 38% had at least one accident in the previous year, with a twice-as-high risk if using e-bikes. Accidents mainly occurred during evening rush hours and dinner (48%), with consequences affecting the lower back and body (57%). The most reported work-related health issues were low back pain (37%) and fatigue (30%). 12% reported having suffered at least one physical assault in the previous year.

Discussion

Although preliminary, our results suggest that being a rider in Milan could entail significant work-related risks, with regards especially to road accidents, musculoskeletal disorders, and physical assault.

Conclusions

As future steps, we will compare our results with objective data (e.g., road accident databases) and further investigate the available platforms.
P-622 EXPERTISE ASSESSMENT OF WORK-INDUCED CARPAL TUNNEL SYNDROME: A CASE REPORT
Authors: Abouzahir Hind , El Hamamouchi Ikram , Belhouss Ahmed , Benyaich Hicham
Published: July 2024

Background

People who work in a number of professions may develop carpal tunnel syndrome (CTS). Frequent, repetitive motions of the upper limb, frequent elbow bending and strain, and hand-arm vibrations are the main causes of CTS. Workers in tailoring laboratories are among individuals who are at danger because of their occupation of work. Presently described is a case with the diagnosis of work-related carpal tunnel syndrome.

Methods

A female patient in her forties had spent seven years working at the sewing factory. She claimed that her hands were numb. She was subjected to forceful hand-wrist motions that were repeated. EMG (Electromyography) was used to make the diagnosis of bilateral advanced carpal tunnel syndrome (sensory and motor axonal degeneration and segmental demyelination).

Results

The maximum amount of period between the time that the sickness was discovered and the day the worker stopped being exposed was more than a month. She got surgery that improved her clinical condition. The rate of permanent partial disability (PPD) as determined by medical examination was less than 10%, and there was a direct causative relationship between occupational sickness and job.

Conclusion

Workplace diseases tend to affect the musculoskeletal system. Employees are frequently subjected to a variety of risks at work and frequently suffer consequences systematically. This example serves as a potent reminder of the worth and significance of a thorough anamnesis and work history.
The G9a histone methyltransferase represses osteoclastogenesis and bone resorption by regulating NFATc1 function
Authors: Komatsu Koichiro , Ideno Hisashi , Nakashima Kazuhisa , Udagawa Nobuyuki , Kobayashi Yasuhiro , Kimura Hiroshi , Tachibana Makoto , Yamashita Teruhito , Nifuji Akira
Published: July 2024

Epigenetic modifications affect cell differentiation via transcriptional regulation. G9a/EHMT2 is an important epigenetic modifier that catalyzes the methylation of histone 3 lysine 9 (H3K9) and interacts with various nuclear proteins. In this study, we investigated the role of G9a in osteoclast differentiation. When we deleted G9a by infection of Cre‐expressing adenovirus into bone marrow macrophages (BMMs) from G9afl/fl (Ehmt2fl/fl) and induced osteoclastic differentiation by the addition of macrophage colony‐stimulating factor (M‐CSF) and receptor activator of NF‐κB ligand (RANKL), the number of TRAP‐positive multinucleated osteoclasts significantly increased compared with control. Furthermore, the mRNA expression of osteoclast markers, TRAP, and cathepsin K, and to a lesser extent, NFATc1, a critical transcription factor, increased in G9a KO cells. Infection of wild‐type (WT) G9a‐expressing adenovirus in G9a KO cells restored the number of TRAP‐positive multinucleated cells. In G9a KO cells, increased nuclear accumulation of NFATc1 protein and decreased H3K9me2 accumulation were observed. Furthermore, ChIP experiments revealed that NFATc1 binding to its target, Ctsk promoter, was enhanced by G9a deletion. For in vivo experiments, we created G9a conditional knock‐out (cKO) mice by crossing G9afl/fl mice with Rank Cre/+ (Tnfrsf11aCre/+) mice, in which G9a is deleted in osteoclast lineage cells. The trabecular bone volume was significantly reduced in female G9a cKO mice. The serum concentration of the C‐terminal telopeptide of type I collagen (CTX), a bone‐resorbing indicator, was higher in G9a cKO mice. In addition, osteoclasts differentiated from G9a cKO BMMs exhibited greater bone‐resorbing activity. Our findings suggest that G9a plays a repressive role in osteoclastogenesis by modulating NFATc1 function.
Moving Accreditation Forward With Accreditation Scholarship
Authors: Graves Lisa , Rudkowski Jill
Published: July 2024

Accreditation in medical education serves to create and sustain a culture of excellence in medical education endeavors. Accreditors in undergraduate medical education, graduate medical education, and continuing professional development spaces on the medical education continuum need to enhance collaboration across international boundaries to develop and implement best practices in medical education accreditation. One opportunity that exists to achieve this is the emerging field of accreditation research, and more broadly, accreditation scholarship. In this commentary, the authors, both professional members of Canadian accreditation committee secretariats (the Committee on the Accreditation of Canadian Medical Schools and the Committee on the Accreditation of Continuing Medical Education), highlight accreditation scholarship as tool to support medical education accreditation improvement, growth, and innovation.