Epidemiological and performance indicators for occupational health services: a feasibility study in Belgium

Success rate and predictors of return to work after implementation of a formal return-to-work trajectory: A retrospective cohort study

BACKGROUND

Long term sick leave (SL) is increasing in Europe, several countries have legislative initiatives to reduce long-term absenteeism.

OBJECTIVE

We evaluated the impact of a legally defined return-to-work (RTW) trajectory on the RTW of employees on sick leave in Belgium.

METHODS

This was a retrospective register-based cohort study of employees (n = 1416) who followed an RTW trajectory in 2017. We linked workers' data from a prevention service with social security data. By multinomial logistic regression, we analysed which characteristics predicted the RTW with the same or another employer.

RESULTS

One year after their RTW trajectory, 69.2% of the 1416 employees did not RTW; 10.7% returned to work with the same employer and 20.1% with a new employer. Duration of SL was an important predictor for the RTW with both the same employer and another employer. The odds of RTW were lower when the SL duration was >  6 months compared to <  6 months. Marital status, organization-size, and the occupational physician decision had a significant impact on the RTW with the same employer. Age and who initiated the RTW-trajectory were important predictors on the RTW with another employer.

CONCLUSIONS

Overall, 30.8% of employees returned to work after their RTW trajectory. A one-size-fits-all approach is not recommended. A stepped approach with an early, informal start of the RTW process is advised. When employees or employers fail to initiate the RTW on their own, a legally defined RTW trajectory could be useful. In particular, RTW with another employer seemed a positive effect of the RTW-trajectory.

The long-term effect of job mobility on workers' mental health: a propensity score analysis

OBJECTIVES

The main purpose of this longitudinal study was to elucidate the impact of external job mobility, due to a change of employer, on mental health.

METHODS

A cohort of Belgian employees from the IDEWE occupational medicine registry was followed-up for twenty-seven years, from 1993 to 2019. The use of drugs for neuropsychological diseases was considered as an objective indicator of mental health. The covariates were related to demographic, physical, behavioural characteristics, occupational and work-related risks. Propensity scores were calculated with a Cox regression model with time-varying covariates. The PS matching was used to eliminate the systematic differences in subjects' characteristics and to balance the covariates' distribution at every time point.

RESULTS

The unmatched sample included 11,246 subjects, with 368 (3.3%) that changed their job during the baseline year and 922 (8.2%) workers that left their employer during the follow-up. More than half of the matched sample were males, were aged less than 38 years old, did not smoke, were physically active, and normal weighted, were not exposed to shift-work, noise, job strain or physical load. A strong association between job mobility and neuropsychological treatment was found in the matched analysis (HR = 2.065, 95%CI = 1.397-3.052, P-value < 0.001) and confirmed in the sensitivity analysis (HR of 2.012, 95%CI = 1.359-2.979, P-value < 0.001). Furthermore, it was found a protective role of physical activity and a harmful role of job strain on neuropsychological treatment.

CONCLUSIONS

Our study found that workers with external job mobility have a doubled risk of treatment with neuropsychological medication, compared to workers without job mobility.

PROBE Study: A Sentinel Surveillance System to Monitor Exposure of Belgian Employees to Hazardous Chemicals: A Feasibility Study

OBJECTIVE

To test the feasibility of collecting reliable and representative data on exposure of Belgian employees to a selection of hazardous chemicals by using a sentinel surveillance method.

METHOD

In PROBE (Hazardous chemical Products Register for Occupational use in Belgium), 47 occupational physicians were recruited as a sentinel network. Employees answered a web-based survey assessing their past week exposure to 22 chemicals.

RESULTS

47% employees were exposed to at least one chemical. The most frequently reported exposures was to diesel exhaust (14%). The exposed employees were mostly older men, with most exposed during production and manufacturing, and working in smaller companies. For diesel exhaust, wood dust, and crystalline silica, 54%, 32%, and 20% of the exposed employees, did not use collective/personal protective equipment.

CONCLUSION

Sentinel surveillance is a feasible method for obtaining high-quality data on the exposure of Belgian employees to hazardous chemicals.

The Impact of a Change in Employment on Three Work-Related Diseases: A Retrospective Longitudinal Study of 10,530 Belgian Employees

BACKGROUND

The literature that has investigated to what extent a change in employment contributes to good health is contradictory or shows inconsistent results. The aim of this study was to investigate whether an association exists between a change in employment and cardiovascular, musculoskeletal and neuropsychological diseases in a sample of 10,530 Belgian workers in a seven-year follow-up study period.

METHODS

The following factors were analysed: Demographic variables, a change in employment and the work-related risks. Individuals being on medication for cardiovascular, musculoskeletal, and neuropsychological diseases were used as proxies for the three health issues. Logistic regression models for autocorrelated data with repeated measures were used to examine each medication type.

RESULTS

A change in employment and psychosocial load can have an important effect on the health of cardiovascular employees. Demographic variables, such as BMI and age, are risk factors for all three medications. Repetitive, manual tasks, handling static, exposure to noise levels of 87 dB, mechanical and/or manual handling with loads, and shift work were found to be positively associated with medications taken for musculoskeletal diseases. Exposure to noise 80 dB(A), managing physical loads and night work were found to be associated with being on medication for neuropsychological diseases. Physical activity and skill levels were considered to be protective factors for being on medication for neuropsychological diseases.

CONCLUSIONS

Change in employment and psychosocial load were found as two important risk factors for being on medication for cardiovascular (CVD). Dealing with loads, doing shift work and being daily exposed to the noise of 87 dB correlated with being on medication for musculoskeletal (MSD). Dealing with physical loads, doing night work and being exposed to the noise of 80 dB were risk factors for being on medication for neuropsychological (NPD). While doing physical activity and reporting higher skill levels were found to be protective factors for NPD.

Evaluation of data availability on population health indicators at the regional level across the European Union

BACKGROUND

The ability to measure regional health inequalities across Europe and to build adequate population health indices depends significantly on the availability of reliable and comparable data at the regional level. Within the scope of the EU-funded project EURO-HEALTHY, a Population Health Index (PHI) was built. This model aggregates 39 indicators considered relevant by experts and stakeholders to evaluate and monitor population health on the regional level within the European Union (269 regions). The aim of this research was to assess the data availability for those indicators. As a subsequent aim, an adequate protocol to overcome issues arising from missing data will be presented, as well as key messages for both national and European statistical authorities meant to improve data collection on population health.

METHODS

The methodology for the study includes three consecutive phases: (i) assessing the data availability for the respective indicators at the regional level for the last year available (ii) applying a protocol for missing data and completing the database and (iii) developing a scoring system ranging from 0 (no data available; worst) to 1 (all data available; best) to evaluate the availability of data by indicator and EU region.

RESULTS

Although the missing data on the set of the PHI indicators was significant, the mean availability score for the EURO-HEALTHY PHI indicators is 0.8 and the regional availability score is 0.7, which reveal the strength of the indicators as well as the data completeness protocol for missing data.

CONCLUSIONS

This study provides a comprehensive data availability assessment for population health indicators from multiple areas of concern, at the EU regional level. The results highlight that the data completeness protocol and availability scores are suitable tools to apply on any indicator's data source mapping. It also raises awareness to the urgent need for sub-national data in several domains and for closing the data gaps between and within countries. This will require policies clearly focused on improving equity between regions and a coordinated effort from the producers of data (the EU28 national statistics offices and EUROSTAT) and the stakeholders who design policies at EU, regional and local level.

Prevalence of high cardiovascular risk by economic sector

Purpose

The aim of this study was to assess the prevalence of high cardiovascular risk and the trend of cardiovascular risk factors in a large sample of Belgian workers.

Methods

A cross-sectional study was performed on the data of workers under medical surveillance by the non-profit occupational health service IDEWE in 2018. The prevalence of poor health for smoking, physical activity, body mass index (BMI), and blood pressure according to the American Heart Association (AHA) definition was investigated. The presence of three or more poor cardiovascular health metrics was considered high cardiovascular risk. A log-binomial regression model was used to compare the prevalence of high cardiovascular risk between economic sectors taking into account age and gender and to calculate predicted probabilities of high cardiovascular risk.

Results

Data about 212,792 workers were available. In 2018, overall, 7% of workers had high cardiovascular risk. Transport and construction had the highest prevalence of high cardiovascular risk, 14% and 12%, respectively. The lowest prevalence, 3%, was observed in education. Differences between sectors remained statistically significant after adjustment for age and gender. In men, workers in transport and storage and in construction had the highest predicted probability of high cardiovascular risk that increased with age. In women, highest predicted probability was observed in transport and storage.

Conclusions

When implementing health promotion initiatives, priority should be given to sectors and professions where risk factors are most prevalent or are increasing rapidly. Measures should be tailored to the special needs of the occupational groups at high risk.

Electronic supplementary material

The online version of this article (10.1007/s00420-019-01458-9) contains supplementary material, which is available to authorized users.

Opinion paper: the role of work in the management of medically unexplained physical symptoms

OBJECTIVES

Patients with medically unexplained physical symptoms suffer from chronic fatigue and/or pain in combination with a variety of other symptoms. A flexible, biopsychosocial approach is needed for diagnostic screening and global management. It is crucial to involve the direct patient environment, including family, friends, colleagues as well as health providers, evaluation, and reintegration sector. The aim of this paper is to review the importance of work in the management of medically unexplained physical symptoms.

METHODS

In this paper, different actors involved explain their views and handling concerning work in the management of MUPS.

RESULTS

Symptom severity and lack of understanding from the environment can negatively impact on earning an independent income from labor for years. Work, whether or not paid, is however, an important life domain with positive effects on physical, psychological, and social well-being. Therefore, health actors are pivotal in starting the professional reintegration process as soon as possible and should discuss this item from the early stage onward. Support services can be consulted in mutual interaction as required. A case manager, acting as a central intermediator within this multidisciplinary approach, may promote effective communication and coordination between the patients and their surrounding actors.

CONCLUSION

The professional reintegration process should start as soon as possible within the management of medically unexplained physical symptoms. As such, the care sector, the evaluation sector, and the professional integration sector should collaborate and effectively communicate with each other.

Sustainability of green jobs in Portugal: a methodological approach using occupational health indicators

OBJECTIVE

This study aimed to develop a methodological tool to analyze and monitor the green jobs in the context of Occupational Health and Safety.

METHODS

A literature review in combination with an investigation of Occupational Health Indicators was performed. The resulting tool of Occupational Health Indicators was based on the existing information of "Single Report" and was validated by national's experts.

RESULTS

The tool brings together 40 Occupational Health Indicators in four key fields established by World Health Organization in their conceptual framework "Health indicators of sustainable jobs." The tool proposed allows for assessing if the green jobs enabled to follow the principles and requirements of Occupational Health Indicators and if these jobs are as good for the environment as for the workers' health, so if they can be considered quality jobs.

CONCLUSIONS

This shows that Occupational Health Indicators are indispensable for the assessment of the sustainability of green jobs and should be taken into account in the definition and evaluation of policies and strategies of the sustainable development.

Use of GIS in visualization of work-related health problems

Background

Occupational health and safety (OHS) information is often complex, diverse and unstructured and suffers from a lack of integration which usually precludes any systemic insight of the situation.

Aims

To analyse to what extent the use of geographical information systems (GISs) can help to integrate, analyse and present OHS data in a comprehensive and communicable way relevant for surveillance purposes.

Methods

We first developed a ‘macro-approach’ (from national to local level), mapping data related to economic activity (denominator of active workers displayed by activity sectors), as well as work-related ill-health (numerators of workers suffering from work-related ill-health). The latter data are composed of compensated occupational diseases on the one hand and work-related diseases investigated by specialized clinics on the other hand. Then, a ‘micro-approach’ was worked out, integrating at a plant level, using computer-aided drawing, occupational risks data and OHS surveillance data (e.g. use of medication and sickness absence data).

Results

At the macro-level, microelectronics companies and workers were mapped at different scales. For the first time, we were able to compare, up to the enterprise level, complementary data showing different pictures of work-related ill-health, allowing a better understanding of OH issues in this sector. At the micro-level, new information arose from the integration of risk assessment data and medical data.

Conclusions

This work illustrates to what extent GIS is a promising tool in the OHS field, and discusses related challenges (technical, ethical, biases and interpretation) and research perspectives.

Bridging Health Care and the Workplace: Formulation of a Return-to-Work Intervention for Breast Cancer Patients Using an Intervention Mapping Approach

Purpose An increasing number of breast cancer (BC) survivors of working age require return to work (RTW) support. Objective of this paper is to describe the development of a RTW intervention to be embedded in the care process bridging the gap between hospital and workplace. Method The Intervention Mapping (IM) approach was used and combined formative research results regarding RTW in BC patients with published insights on occupational therapy (OT) and RTW. Four development steps were taken, starting from needs assessment to the development of intervention components and materials. Results A five-phased RTW intervention guided by a hospital-based occupational therapist is proposed: (1) assessing the worker, the usual work and contextual factors which impacts on (re-)employment; (2) exploration of match/differences between the worker and the usual work; (3) establishing long term goals, broken down into short term goals; (4) setting up tailored actions by carefully implementing results of preceding phases; (5) step by step, the program as described in phase 4 will be executed. The occupational therapist monitors, measures and reviews goals and program-steps in the intervention to secure the tailor-made approach of each program-step of the intervention. Conclusion The use of IM resulted in a RTW oriented OT intervention. This unique intervention succeeds in matching individual BC patient needs, the input of stakeholders at the hospital and the workplace.

The Approach Taken to Substance Abuse by Occupational Physicians: A Qualitative Study on Influencing Factors

OBJECTIVE

Aiming to enhance occupational physicians' (OPs) practice when dealing with employee substance abuse, this study analyzes the experiences of OPs to gain insight into the factors influencing their behavior.

METHODS

Semi-structured interviews were conducted and analyzed using Interpretative Phenomenological Analysis.

RESULTS

OPs act differently depending on the type of drug. Their approach was mainly determined by contextual factors and by their attitudes and skills. Many OPs want to invest in health promotion. Barriers such as lack of time and focus on periodic examinations often hamper both adequate prevention and the management of workers with substance abuse.

CONCLUSIONS

The approach to substance abuse by OPs could be supported by initiatives both at the individual and the collective level. A facilitating work context seems to be particularly important in their commitment to alcohol- and drug-related issues at work.