Work environment risk factors for the duration of all cause and diagnose-specific sickness absence among healthcare workers in Sweden: a prospective study

COVID-19 Pandemic Impact on Sickness Absences Among Healthcare Workers: A Cohort Study in a Spanish Hospital (2018-2023)

BACKGROUND

Like other European systems, the Spanish national health system (NHS) is reaching a critical point. This article analyses sickness absence (SA) trends, as a direct indicator of this crisis, among healthcare workers (HCWs) in Spain, comparing the pre-pandemic, pandemic, and post-pandemic periods.

METHODS

This study was based on a retrospective cohort of HCWs (n=7.918) hired at Hospital del Mar in Barcelona for at least three months during 2018-2023. The primary outcome was incident SA episodes. Incidence rates (IR) per 1,000 persons-day and 95% confidence intervals (95% CI) were calculated by sex, period, and occupational variables. Longitudinal entropy regression models were estimated to identify the factors influencing the frequency of transitions between the different HCWs' employment states (active or on SA).

RESULTS

Increasing trends in IR (95%CI) were observed, rising from 1.77 (1.71; 1.83) episodes of SA per 1,000 workers-day during the pre-pandemic period to 5.04 (4.93; 5.15) during the post-pandemic among women, and from 1.23 (1.14; 1.31) to 3.79 (3.64; 3.95), respectively, among men. Nurses, nurse aides, orderlies/technicians, workers under 30, and those in intensive care units and emergency rooms showed the highest IR during and after the pandemic, with longitudinal entropy analysis revealing increased state changes, primarily affecting these groups.

CONCLUSIONS

This study demonstrates a significant rise in SA incidence among HCWs during and after the pandemic and identifies vulnerable groups with higher incidence. Several hypotheses, such as poor working conditions, burnout, and patient complexity, have been suggested to explain these results. Urgent interventions are needed to safeguard HCWs' health, thus maintaining the sustainability and safety of the NHS.

Sickness absence trajectories among young and early midlife employees with psychological distress: the contributions of social and health-related factors in a longitudinal register linkage study

PURPOSE

Psychological distress has been associated with sickness absence (SA), but less is known about whether there are distinct patterns in the development of SA among people with psychological distress. We examined trajectories of short- and long-term SA among employees with psychological distress and how social and health-related factors are associated with them.

METHODS

We used the employer's register data on all-cause short- (≤ 10 working days) and long-term (> 10 working days) SA with a two-year follow-up. We prospectively linked the Helsinki Health Study survey data on 19-39-year-old employees of the City of Helsinki, Finland, in 2017, to the SA data. We included 1060 participants (81% women) who reported experiencing psychological distress, measured by the emotional wellbeing scale of RAND-36. Survey responses of age; gender; education; marital status; social support, procedural and interactional organisational justice, and bullying at work; physical activity; diet; tobacco and alcohol use; prior SA; and the level of psychological distress were included as exposures. Group-based trajectory modelling and multinomial logistic regression were used for the analyses.

RESULTS

We identified four short-term SA trajectories: 'low' (n = 379, 36% of participants), 'descending' (n = 212, 20%), 'intermediate' (n = 312, 29%), and 'high' (n = 157, 15%); and two long-term SA trajectories: 'low' (n = 973, 92%) and 'high' (n = 87, 8%). A higher education, fewer prior SA, and lower levels of psychological distress were associated with the 'low' short- and long-term SA trajectories.

CONCLUSION

SA trajectories differ among employees with psychological distress. Early intervention and support are needed among employees with mental health symptoms to prevent future SA.

The role of job strain in the relationship between depression and long-term sickness absence: a register-based cohort study

PURPOSE

Though individuals with depression and those with poor working conditions are more likely to be on long-term sickness absence (LTSA), less is known about how working conditions may modify the associations between depression status and LTSA. This study aims to examine the association between depression and LTSA among Swedish workers with different levels of job strain and its individual components (job demands and job control).

METHODS

All Swedish workers 30 - 60 years old (N = 3,065,258) were studied in 2005. At baseline (2005-2010), workers were categorized as: without depression, being prescribed antidepressants, and being in inpatient/outpatient care. Job strain was measured using a Swedish Job Exposure Matrix, and data on LTSA were obtained from 2011 to 2021. The association between depression and LTSA was assessed using Cox proportional-hazards regression stratified by categories of job strain.

RESULTS

Compared to workers without depression, workers with depression had higher risk of LTSA across all job strain levels. Depression was associated with the highest hazards of LTSA in active jobs, but a similar population attributable fraction (PAF) was found across categories of job strain, indicating similarities between the different categories.

CONCLUSION

There was evidence of a moderating effect of job strain in the relationship between depression and LTSA, but also evidence that this was due to differences in baseline depression prevalence in the different job strain categories. Future research is needed to determine alternative factors which could be relevant for reducing LTSA among those who have already developed depression.

Doctors' perceived working conditions, psychological health and patient care: a meta-analysis of longitudinal studies

OBJECTIVES

Studies have demonstrated an association between doctors' perceived working conditions, and their psychological well-being and patient care. However, few have examined inter-relationships among these three domains, and even fewer using longitudinal designs. Using meta-analytical structural equation modelling, we tested longitudinal relationships among doctors' perceived working conditions, their psychological well-being and patient care. We further tested if doctors' psychological well-being mediates the relationship between perceived working conditions and patient care.

METHODS

We carried out a systematic review using Academic Search Premier, Business Source Premier, PsycInfo, PsycArticles and Medline for the 20-year period between January 2000 and the start of the pandemic (January 2020). We included studies with practising doctors as participants, and that reported a quantifiable bivariate effect size between at least two of the three constructs of interest-perceived working conditions (ie, job demands, job resource), psychological well-being (ie, emotional exhaustion, work engagement) and patient care (ie, clinical care, patient safety). We pooled relationship effect sizes using random-effects meta-analysis, before testing for indirect effects using two-stage structural equation modelling.

RESULTS

Twenty-three samples from 11 countries representing 7275 doctors were meta-analysed. The results indicated that job resources predicted work engagement (ρ=0.18; 95% CI 0.11 to 0.24) and emotional exhaustion (ρ=-0.21; 95% CI -0.31 to -0.11), while job demands predicted emotional exhaustion (ρ=0.27; 95% CI 0.17 to 0.36). Better clinical care was also associated with higher levels of job resources (ρ=0.16; 95% CI 0.04 to 0.29), and lower levels of emotional exhaustion (ρ=-0.21; 95% CI -0.37 to -0.12) and job demands (ρ=-0.27; 95% CI -0.43 to -0.10). Both factors of the work environment were associated with clinical care through doctors' emotional exhaustion, but there were insufficient studies to test the indirect effects for work engagement or patient safety.

CONCLUSION

Our results demonstrate the need for a systems perspective to address working conditions to support both doctors' psychological well-being and patient care. Interventions should target doctors' job resources as they are more strongly associated with psychological well-being. However, given that job demands were strongly associated with emotional exhaustion, and in turn, clinical care, there is a need to better manage doctors' workload, conflict and pressure to support the current psychological well-being crises among this occupational group.

PROSPERO REGISTRATION NUMBER

CRD42020189070.

Exposure to work-related violence and/or threats of violence as a predictor of certified sickness absence due to mental disorders: a prospective cohort study of 16,339 Swedish men and women in paid work

OBJECTIVES

The aim of this prospective cohort study was to investigate if exposure to work-related violence and/or threats of violence predict certified sickness absence due to mental disorders.

METHODS

Information on work-related exposure to violence and/or threats of violence were derived from the biannual Swedish Longitudinal Occupational Survey of Health (SLOSH) study 2012-2016, including individuals in paid work across Sweden and from different occupations/sectors (n = 16,339). Certified sickness absence due to mental disorders were ascertained from register data from the Swedish Social Insurance Agency. Odds ratios of certified sickness absence due to mental disorders according to exposure to work-related violence were estimated using multiple logistic regression. Several potential confounding variables, such as demographic and socio-economic factors, age, sex, cohabitation, children living at home, socio-economic status, educational level, as well as other types of psychosocial work environmental factors, were adjusted for in the analyses.

RESULTS

In the total study sample, 9% reported exposure to violence and/or threats of violence and the prevalence of sickness absence due to mental disorders was 5%. Exposure to work-related violence and/or threats of violence was associated prospectively with certified sickness absence due to mental disorders (odds ratio 1.46, 95% confidence interval 1.17-1.82, p < 0.01). Analysis of possible interaction showed no difference in association when comparing women to men and different age groups.

CONCLUSIONS

Exposure to work-related violence and/or threats of violence appear to increase the odds of certified sickness absence due to mental disorders. Preventive measures aiming to lower the risk of exposure is thus of great importance.

Working Conditions and Long-Term Sickness Absence Due to Mental Disorders: A Prospective Record Linkage Cohort Study Among 19- to 39-Year-Old Female Municipal Employees

OBJECTIVE

We examined associations between working conditions and long-term sickness absence due to mental disorders (LTSA-MD) among younger female public sector employees from different employment sectors.

METHODS

Survey data collected in 2017 (n = 3048) among 19- to 39-year-old female employees of the City of Helsinki, Finland, were used to examine job demands, job control, physical workload, computer work, and covariates. Register data on LTSA-MD were used over 1-year follow-up. Negative binomial regression models were applied.

RESULTS

Adverse psychosocial and physical working conditions were associated with higher LTSA-MD during the follow-up. Health and social care workers had the highest number of days of LTSA-MD.

CONCLUSION

Working conditions are important factors when aiming to prevent LTSA-MD among younger employees, in the health and social care sector in particular.

Does Exposure to High Job Demands, Low Decision Authority, or Workplace Violence Mediate the Association between Employment in the Health and Social Care Industry and Register-Based Sickness Absence? A Longitudinal Study of a Swedish Cohort

BACKGROUND

The aim of this paper was to investigate if job demands, decision authority, and workplace violence mediate the association between employment in the health and social care industry and register-based sickness absence.

METHODS

Participants from the Swedish Longitudinal Occupational Survey of Health who responded to questionnaires in 2006-2016 (n = 3951) were included. Multilevel autoregressive cross-lagged mediation models were fitted to the data. Employment in the health and social care industry at one time point was used as the predictor variable and register-based sickness absence >14 days as the outcome variable. Self-reported levels of job demands, decision authority, and exposure to workplace violence from the first time point were used as mediating variables.

RESULTS

The direct path between employment in the health and social care industry and sickness absence >14 days was, while adjusting for the reverse path, 0.032, p = 0.002. The indirect effect mediated by low decision authority was 0.002, p = 0.006 and the one mediated by exposure to workplace violence was 0.008, p = 0.002. High job demands were not found to mediate the association.

CONCLUSION

Workplace violence and low decision authority may, to a small extent, mediate the association between employment in the health and social care industry and sickness absence.

The changing nature of work - Job strain, job support and sickness absence among care workers and in other occupations in Sweden 1991-2013

This study examined exposure changes in three psychosocial dimensions - job demands, job control, and social support - and the associations between these dimensions and sickness absence throughout the period 1991-2013. The analyses covered periods of economic ups and downs in Sweden and periods involving major fluctuations in sickness absence. Data on care workers (n = 16,179) and a comparison group of employees in other occupations (n = 82,070) were derived from the biennial Swedish Work Environment Survey and linked to register data on sickness absence. Eight exposure profiles, based on combinations of demands, control, and support, were formed. The proportion of individuals with work profiles involving high demands doubled among care workers (14%-29%) while increasing modestly in the comparison group (17%-21%) 1991-2013. The work profile that isolated high-strain (iso-strain), i.e., high demands, low control, and low social support, was more prevalent among care workers, from 4% in 1991 to 11% in 2013. Individuals with work profiles involving high-demand jobs had the highest number of days on sickness absence during the study period and those with the iso-strain work profile had the highest increase in sickness absence, from 15 days per year during 1993-1994, to 42 days during 2000-2002. Employees with a passive work profile (low job demands and low job control) had the lowest rate and the lowest increase in sickness absence. Individuals with active work profiles, where high demands are supposed to be balanced by high job control, had a rather high increase in sickness days around 2000. A conclusion is that there is a long-term trend towards jobs with high demands. This trend is stronger among care workers than among other occupations. These levels of job demands seem to be at such a level that it is difficult to compensate for with higher job control and social support.

Musculoskeletal Disorders' Classification Proposal for Application in Occupational Medicine

Occupational-specific classifications of musculoskeletal disorders (MSD) are scarce and do not answer specific clinical questions. Thus, a specific classification was developed and proposed, covering criteria applicable to daily clinical activity. It was considered that the disorder development process is the same across all work-related MSDs (WRMSDs). Concepts of clinical pathology were applied to the characteristics of WRMSDs pathophysiology, cellular and tissue alterations. Then, the correlation of the inflammatory mechanisms with the injury onset mode was graded into four levels (MSDs 0-3). Criteria of legal, occupational and internal medicine, semiology, physiology and orthopaedics, image medicine and diagnostics were applied. Next, the classification was analysed by experts, two occupational physicians, two physiatrists and occupational physicians and one orthopaedist. This approach will allow WRMSD prevention and improve therapeutic management, preventing injuries from becoming chronic and facilitating communication between occupational health physicians and the other specialities. The four levels tool relate aetiopathogenic, clinical, occupational and radiological concepts into a single classification. This allows for improving the ability to determine a WRMSD and understanding what preventive and therapeutic measures should be taken, avoiding chronicity. The developed tool is straightforward, easy to understand and suitable for WRMSDs, facilitating communication between occupational physicians and physicians from other specialities.