Work disability after diagnosis of hand-arm vibration syndrome.

PURPOSE: Our aim was to study the course of vasospastic and sensorineural symptoms after the clinical diagnosis of hand-arm vibration syndrome (HAVS), and the association of current HAVS symptoms with occupational status, self-evaluation of health, quality of life, and work ability. METHODS: We gathered all HAVS cases diagnosed at the Finnish Institute of Occupational Health in Helsinki and Tampere during 1990-2008. A questionnaire was sent to all these patients (n = 241). Altogether 149 of them (62 %) returned the questionnaire. Cumulative lifelong vibration exposure was evaluated on the basis of the data in the patient files. RESULTS: On average, 8.5 years after the diagnosis of HAVS, approximately one-third of the patients reported improvement in symptoms of vibration-induced white finger (VWF) and the sensorineural symptoms. Young age and shorter exposure time were associated with improvement in VWF symptoms (p = 0.033 and p < 0.001, respectively). Persistent or deteriorated symptoms of both VWF and sensorineural symptoms were associated with lowered work ability, quality of life (EQ-5D), and general health, also after adjusting for age, smoking, and diseases other than HAVS. The patients' own prediction of work ability in 2 years was more negative if the VWF symptoms or sensorineural symptoms had continued after diagnosis of HAVS (p = 0.065 and p = 0.001, respectively). CONCLUSIONS: Our results suggest that in about two-thirds of the patients, the HAVS symptoms may stabilize or deteriorate in the follow-up. Considering the effects on work ability, timely prevention measures should be taken more actively to help patients continue their working careers.

Effective information campaign for management of exposure to hand-arm vibration in the metal and construction industries.

European Directive 2002/44/EC defines employers' responsibilities in the risk management of hand-arm vibration (HAV). However, the directive is still not completely implemented in all risk industries. The aim of our study was to determine whether it is possible to improve the recognition and management of the risks of HAV at workplaces with a one-year information campaign. A questionnaire on opinions and measures for controlling HAV exposure at workplaces was sent to all occupational safety representatives and occupational safety managers in the construction and metal industry in Finland (n=1887) and once again to those who responded to the first questionnaire (n=961) one year after the campaign. The campaign increased recognition of HAV in risk assessment from 57.0% to 68.3% (p=.001), increased measures to decrease exposure to HAV from 54.6% to 64.2% (p=.006) and increased the number of programmes to control the risks due to HAV (p<.001). The information campaign, which focuses on the construction and metal industries, proved to be effective in increasing the awareness of the risks of HAV and the measures needed to control exposure to HAV. A similar campaign can be recommended in the case of risks specific to certain occupations.

Characteristics of Multiprofessional and Client-Oriented Approach in Occupational Health Services: A Cross-Sectional Survey Among Occupational Health Professionals.

Background: Multiprofessional and client-oriented approaches are considered key factors for successful occupational health services, and for impressive occupational health cooperation between a client organisation and occupational health service provider. The purpose of this study was to find out the views of occupational health physicians, occupational health nurses, occupational physiotherapists, and occupational health psychologists about multiprofessional and client-oriented working methods. These working methods describe the guidelines for good occupational health practice in Finland, also serving the framework of the present study. Material and Methods: The survey was conducted in May and June 2022. The data consisted of answers to open-ended questions of a larger questionnaire. The data was analysed with the method of theory-related thematic analysis. Seven occupational health service providers committed to the study. Altogether 121 professionals responded to the question surveying the multiprofessional approach, and 119 professionals responded to the question of client-oriented approach. Results: The results showed that both the multiprofessional and client-oriented approaches are closely related to each other, and the views of these approaches are in line with the good occupational health practice. Multiprofessional approach was most commonly described with the theme of sharing expertise. Respectively, the theme of smooth cooperation most commonly described the client-oriented approach. At its best, the answers showed that a multiprofessional working strategy takes into account the expertise of different professionals so that the client can be offered high-quality, accurate content and timely occupational health services. Conclusion: The results provide up-to-date information on working strategies of occupational health services in Finland. The results can be used in further development of multiprofessional and client-oriented work in occupational health services.

Exploring the use, usefulness and ease of use of digital occupational health services: A descriptive correlational study of customer experiences.

Objective: This study examined the customer experiences of use, perceived usefulness and ease of use of digital occupational health (OH) services. Methods: A cross-sectional study based on an electronic survey was conducted between December 2022 and January 2023. A total of 9871 OH customers responded to the survey. The sample was restricted to respondents who used digital OH services (n = 7275). An analysis of variance was run to test the relationships between respondents' characteristics and the rate of usefulness, and ease of use variables. Results: The most commonly used digital services were appointment booking, access to health information recorded by professionals and prescription renewal, and the digital services provided by physicians and nurses. Respondents expressed quite high satisfaction with the digital services, but not as much with their usefulness and ease of use. Females, individuals under 50 years of age, those with higher education, working in white-collar or managerial positions and possessing proficient information and communication technology (ICT) skills gave the most positive evaluations regarding usefulness and ease of use. Conclusions: There was a certain level of mixed experiences among respondents regarding the usefulness and ease of use of digital OH services. We can also conclude that individuals who possess the necessary ICT skills can more easily take full advantage of the available digital services. When customers are proficient in using digital services, they can confidently interact with professionals. Regardless of the user's age, gender, education or profession, it is crucial for service providers always to strive to improve the usability of digital services.

Increased alveolar nitric oxide and systemic inflammation markers in silica-exposed workers.

BACKGROUND: Exposure to silica dust may cause inflammatory responses, primarily in the lungs, although systemic effects have also been reported. Alveolar inflammation can be demonstrated by increased alveolar concentration of nitric oxide (NO), but information on the effects of silica dust on exhaled NO is sparse. Inflammatory mediators including cytokines are known to take part in silica-induced processes, but the role of adipokines has not been studied previously. OBJECTIVES: The aim of the study was to investigate the pulmonary and systemic inflammatory responses to occupational exposure to silica dust. METHODS: The authors examined 94 silica-exposed workers and 35 healthy volunteers. The authors also measured alveolar NO concentration, bronchial NO flux and the plasma levels of proinflammatory cytokines, interleukin (IL)-6 and IL-8, and the adipokines, adipsin, leptin, adiponectin and resistin. RESULTS: After adjusting for age, body mass index and pack-years of tobacco smoking, silica exposure was associated with significantly higher levels of alveolar NO (p=0.001), indicating inflammatory effects of silica in the peripheral lung. In addition, increased plasma concentrations of IL-6, adiponectin, adipsin and resistin were significantly associated with silica exposure (p=0.002, p=0.034, p<0.001 and p=0.048, respectively). CONCLUSIONS: In conclusion, measurement of alveolar NO concentration and plasma cytokine and adipokine levels seems to offer a modern means to demonstrate the inflammatory effects of exposure to silica. These measures might be useful in finding subjects with a significant immune response to silica particles and thus at higher risk of developing silicosis or other immunological diseases associated with exposure to silica, but further research is needed.

Clinical and HRCT screening of heavily asbestos-exposed workers.

PURPOSE: To characterize asbestosis today and to clarify the indications for high-resolution computed tomography (HRCT) in the surveillance of heavily exposed workers. METHODS: Six hundred and twenty-seven workers were screened and HRCT findings were classified and divided in two groups: pulmonary fibrosis (n = 86) and no fibrosis (n = 541). RESULTS: Most (65/86 = 76%) of the detected fibrosis cases were mild. The magnitude of asbestos exposure showed an unexpected inverse relation with fibrosis. In multivariate analyses, age, forced expiratory volume in 1 s/forced vital capacity ratio, and poor diffusing capacity were associated with HRCT fibrosis, but asbestos exposure was not. CONCLUSIONS: Asbestosis seems to be characterized by mild fibrosis today even in heavily exposed workers. To avoid radiation exposure in HRCT, age and lung function data may be used only to a limited extent to select imaging candidates. Selection and recollection biases may distort the relation between asbestos exposure and fibrosis.

Effects of a cognitive ergonomics workplace intervention (CogErg) on cognitive strain and well-being: a cluster-randomized controlled trial. A study protocol.

BACKGROUND: Cognitively straining conditions such as disruptions, interruptions, and information overload are related to impaired task performance and diminished well-being at work. It is therefore essential that we reduce their harmful consequences to individual employees and organizations. Our intervention study implements practices for managing the cognitive strain typical to office work tasks and working conditions in offices. We will examine the effects of a cognitive ergonomics intervention on working conditions, workflow, well-being, and productivity. METHODS/DESIGN: The study is a stratified cluster randomized trial. The clusters are work units, for example, teams or offices. The four participating organizations entered a total of 36 clusters, and we invited all 1169 knowledge employees of these units to participate. We randomly allocated the clusters into an intervention group (cognitive ergonomics) or an active control group (recovery supporting). We invited an additional 471 participants to join a passive control group only for baseline and follow-up measurements, with no intervention. The study consists of a baseline survey and interviews and observations at the workplace, followed by an intervention. It starts with a workshop defining the specific actions for the intervention implementation stage, during which we send task reminder questionnaires to all employees to support behaviour change at the individual and team levels. The primary outcome measure is perceived frequency of cognitive strain from working conditions; the secondary outcome measures include subjective cognitive load, well-being, workflow/productivity, and cognitive stress symptoms. Process evaluation uses the quantitative and qualitative data obtained during the implementation and evaluation phases. The baseline measurements, intervention phase, and end-of-treatment measurements are now complete, and follow-up will continue until November 2019. DISCUSSION: There is a need to expand the research of cognitive strain, which poses a considerable risk to work performance and employee well-being in cognitively demanding tasks. Our study will provide new information about factors that contribute to such strain. Most importantly, the results will show which evidence-based cognitive ergonomic practices support work performance in knowledge work, and the project will provide concrete examples of how to improve at work. TRIAL REGISTRATION: ClinicalTrials.gov, NCT03573674. Registered 29 June 2018.

Pulmonary inflammation in foundry workers.

OBJECTIVE: To assess whether cumulative dust exposure in foundry work is associated with airway inflammation measured by the analysis of fractionated exhaled nitric oxide (NO) concentration, or by inflammatory markers in exhaled breath condensate or serum. METHODS: We examined 476 dust-exposed and nonexposed foundry workers, and assessed the individual cumulative exposure to dusts and respirable quartz. Bronchial and alveolar NO production and inflammatory markers in exhaled breath condensate and in serum samples were also analyzed. RESULTS: After adjusting for pack-years of smoking, increased levels of alveolar NO, serum C-reactive protein, and interleukin-8 were associated with a higher level of cumulative exposure to dust. The referents had higher serum myeloperoxidase levels, bronchial NO output, and 8-isoprostane levels in exhaled breath condensate than in the dust-exposed groups. CONCLUSIONS: Dust exposure in foundry work may induce both systemic and alveolar inflammation.

Short-term prognosis of occupational asthma in a Finnish population.

BACKGROUND: Causative agents of occupational asthma (OA) are well described in literature but far less is known about factors affecting the outcome of OA. Short duration of exposure, early diagnosis when symptoms appear and further avoidance of exposure have been suggested as good prognostic factors. This study was designed to investigate a short-term outcome of OA. METHODS: The medical records of 47 Caucasian patients from a Finnish population diagnosed with OA in year 2003 were reviewed retrospectively. Employment status at 6-month follow-up of all patients was determined. We assessed the following potential predictors of unemployment at follow-up: the causative agents of OA, asthma medication, spirometry results, smoking status, gender, age, occupation, atopy status, bronchial hyperresponsiveness and time to diagnosis. We calculated odd ratios (ORs) to predict employment status at follow-up. RESULTS: At the follow-up examination, 23 persons (49%) were not working. At the time of follow-up there were no significant differences in pulmonary function between those employed and those who discontinued to work. Atopy at baseline predicted diminished lung function at the 6-month follow-up. In addition, atopy was the only prognostic factor and was inversely related to the work discontinuation at the follow-up [OR 0.18, 95% confidence interval (CI) 0.04-0.79]. Work continuation as an OA outcome at 6 months could not be predicted by gender, age, occupational status, exposure antigen, smoking habits or duration of symptoms before diagnosis. CONCLUSIONS: The socio-economic short-term prognosis of OA was relatively poor since half of the patients were not at work at the 6 months follow-up.