Social support, job strain and musculoskeletal pain among female health care personnel

Work as a social determinant of health in high-income countries: past, present, and future

This paper, the first in a three-part Series on work and health, provides a narrative review of research into work as a social determinant of health over the past 25 years, the key emerging challenges in this field, and the implications of these challenges for future research. By use of a conceptual framework for work as a social determinant of health, we identified six emerging challenges: (1) the influence of technology on the nature of work in high-income countries, culminating in the sudden shift to telework during the COVID-19 pandemic; (2) the intersectionality of work with gender, sexual orientation, age, race, ethnicity, migrant status, and socioeconomic status as codeterminants of health disparities; (3) the arrival in many Organisation for Economic Co-operation and Development countries of large migrant labour workforces, who are often subject to adverse working conditions and social exclusion; (4) the development of precarious employment as a feature of many national labour markets; (5) the phenomenon of working long and irregular hours with potential health consequences; and (6) the looming threat of climate change's effects on work. We conclude that profound changes in the nature and availability of work over the past few decades have led to widespread new psychosocial and physical exposures that are associated with adverse health outcomes and contribute to increasing disparities in health. These new exposures at work will require novel and creative methods of data collection for monitoring of their potential health impacts to protect the workforce, and for new research into better means of occupational health promotion and protection. There is also an urgent need for a better integration of occupational health within public health, medicine, the life sciences, and the social sciences, with the work environment explicitly conceptualised as a major social determinant of health.

Predictors of return to work among women with long-term neck/shoulder and/or back pain: A 1-year prospective study

Background

Sick leave due to musculoskeletal pain, particularly in the neck/shoulders and back, is one of the major public health problems in Western countries such as Sweden. The aim of this study was to identify predictors of return to work (RTW) among women on sick leave due to long-term neck/shoulder and/or back pain.

Methods

This was a prospective cohort study with a 1-year follow-up. The study participants were recruited from a local Swedish Social Insurance Agency register and had all been on sick leave for ≥ 1 month due to long-term (≥ 3 months) neck/shoulder and/or back pain. Data on predictors and outcome were collected using a self-administered questionnaire. A total of 208 women aged 23–64 years were included at baseline, and 141 responded at the 1-year follow-up. Cluster analyses were performed to identify one predictor from each cluster for use in the regression model.

Results

At the 1-year follow-up, 94 of the 141 women had RTW and 47 had not. Women who engaged in more coping through increasing behavioral activities (OR: 1.14, 95% CI: 1.03–1.25) and those who more strongly believed they would return to the same work within 6 months (OR: 1.22, 95% CI: 1.10–1.37) had an increased probability of RTW. Receiving more social support outside work (OR: 0.50, 95% CI: 0.28–0.92) decreased the odds of RTW at the 1-year follow-up.

Conclusions

Behavioral activities, beliefs about returning to the same work, and social support outside work were predictors of RTW at the 1-year follow-up. Healthcare professionals should consider these predictors in their efforts to prevent prolonged sick leave and to promote RTW in this population.

Relationship between Musculoskeletal Disorders and Work Performance of Nursing Staff: A Comparison of Hospital Nursing Departments

This study aimed to explore the relationship between musculoskeletal disorders and the work performance of nursing staff. This cross-sectional study used the Checklist for Musculoskeletal Disorders (MSDs), the Nordic Musculoskeletal Questionnaire (NMQ), and the Work Ability Index to survey the prevalence of MSDs, as well as to determine the impact of MSDs on 117 nursing staff working in an emergency department, an intensive care unit, and general wards. The findings indicate that the nursing staff were exposed to a workplace environment with a high risk of MSDs. Nursing staff in the emergency department were at a particularly high risk of MSDs in their upper and lower limbs, while those working in the intensive care unit had a particularly high risk of injuries caused by manual material handling. Analyzing the relationship between MSD risk factors and NMQ scores showed a 6 times, 3.25 times, and 2.28 times increase in MSD conditions with a high workload compared to a low workload in the hand and wrist, the lower back or waist, and the knee, respectively. Medium and high workloads were found to increase the risk of MSD, which in turn affected the work ability of the nurses.

Safe patient handling and mobility (SPHM) for increasingly bariatric patient populations: Factors related to caregivers' self-reported pain and injury

This study was conducted at 5 Veterans Administration Medical Centers (VAMCs). A cross sectional survey was administered to 134 workers who routinely lift and mobilize patients within their workplaces' safe patient handling and mobility (SPHM) programs, which are mandated in all VAMCs. The survey was used to examine a comprehensive list of SPHM and non-SPHM variables, and their associations with self-reported musculoskeletal injury and pain. Previously unstudied variables distinguished between "bariatric" (≥300 lb or 136 kg) and "non-bariatric" (<300 lb or 136 kg) patient handling. Significant findings from stepwise and logistic regression provide targets for workplace improvements, predicting: lower injury odds with more frequently having sufficient time to use equipment, higher back pain odds with more frequent bariatric handling, lower back pain odds with greater ease in following SPHM policies, and lower odds of upper extremity pain with more bariatric equipment, and with higher safety climate ratings.

Factors related to work ability and well-being among women on sick leave due to long-term pain in the neck/shoulders and/or back: a cross-sectional study

BACKGROUND

Musculoskeletal pain is one of the leading causes of sick leave, especially among women, in Western countries. The aim of the present study was to identify factors associated with work ability and well-being, respectively, among women on sick leave due to long-term pain in the neck/shoulders and/or back.

METHODS

A cross-sectional study with a correlational design was conducted on women who were sick-listed due to long-term pain in the neck/shoulders and/or back. A total of 208 participants responded to a survey comprising eight instruments: Multidimensional Pain Inventory scale, General Self-Efficacy scale, Sense of Coherence scale, Coping Strategies Questionnaire, Demand-Control-Support Questionnaire, Hospital Anxiety and Depression Scale, Work Ability Index and Life Satisfaction questionnaire. Multiple linear regression analyses were performed to identify factors associated with work ability and well-being, respectively.

RESULTS

Women who more strongly believed they would return to the same work had greater work ability (β = 0.39, p < 0.001), whereas women with higher pain intensity (β = - 0.30, p < 0.001) and higher job strain (β = - 0.12, p < 0.05) had lower work ability. Women with higher self-efficacy rated greater well-being (β = 0.14, p < 0.05). As the women's scores for depression increased, their well-being decreased by 48%, which was statistically significant (p < 0.001). The regression models for work ability and well-being were significant (p < 0.001), and their adjusted R- square values were 48% and 59%, respectively.

CONCLUSIONS

The study suggests that the factors beliefs to be back at the same work, pain intensity and job strain are predictive of work ability. Moreover, the factors self-efficacy and depression seem to be predictive of well-being. The findings highlight factors that should be considered by health care professionals and policy-makers to guide attempts to reduce sick leave.

The Association of Workplace Psychosocial Factors and Musculoskeletal Pain Among Korean Emotional Laborers

Background

Many studies have reported negative psychological or physical effects of emotional labor. Relationship between work-related musculoskeletal disorder and psychosocial factors has been reported. To manage organizational and psychosocial factors of musculoskeletal disorder with work place intervention among emotional laborers, the factors contributing to musculoskeletal pain must be identified and clarified.

Methods

Data from the fourth Korean Working Conditions Survey was analyzed. Based on the questionnaire, we selected emotional laborers and included 3,979 participants, excluding participants whose variables were of interest to the researcher. Weight variable was applied. The association with musculoskeletal pain and psychosocial factors, such as workload, monotonous work, job control, social support, and job satisfaction, was investigated.

Results

Univariate analysis demonstrated that there was a statistically significant relationship between social support, job satisfaction, and musculoskeletal pain. In multivariate analysis, job satisfaction showed a strong correlation with musculoskeletal pain at all sites. Social support was significantly associated with backache. Monotonous work seemed to reduce the pain in the neck and/or upper limbs. Job control and work intensity were not significantly associated with musculoskeletal pain.

Conclusion

In this study, job satisfaction was significantly associated with musculoskeletal pain, and social support among the social psychological stressors could reduce musculoskeletal pain. However, unlike previously known, the presence of monotonous work resulted in reduced musculoskeletal pain. The results of this study will help to establish the direction of improvement of atmosphere in the workplace to prevent the musculoskeletal pain of emotional laborers.

Conceptualizing the dynamics of workplace stress: a systems-based study of nursing aides

Background

Workplace stress is a complex phenomenon that may often be dynamic and evolving over time. Traditional linear modeling does not allow representation of recursive feedback loops among the implicated factors. The objective of this study was to develop a multidimensional system dynamics model (SDM) of workplace stress among nursing aides and conduct simulations to illustrate how changes in psychosocial perceptions and workplace factors might influence workplace stress over time.

Methods

Eight key informants with prior experience in a large study of US nursing home workers participated in model building. Participants brainstormed the range of components related to workplace stress. Components were grouped together based on common themes and translated into feedback loops. The SDM was parameterized through key informant insight on the shape and magnitude of the relationship between model components. Model construction was also supported utilizing survey data collected as part of the larger study. All data was entered into the software program, Vensim. Simulations were conducted to examine how adaptations to model components would influence workplace stress.

Results

The SDM included perceptions of organizational conditions (e.g., job demands and job control), workplace social support (i.e., managerial and coworker social support), workplace safety, and demands outside of work (i.e. work-family conflict). Each component was part of a reinforcing feedback loop. Simulations exhibited that scenarios with increasing job control and decreasing job demands led to a decline in workplace stress. Within the context of the system, the effects of workplace social support, workplace safety, and work-family conflict were relatively minor.

Conclusion

SDM methodology offers a unique perspective for researchers and practitioners to view workplace stress as a dynamic process. The portrayal of multiple recursive feedback loops can guide the development of policies and programs within complex organizational contexts with attention both to interactions among causes and avoidance of adverse unintended consequences. While additional research is needed to further test the modeling approach, findings might underscore the need to direct workplace interventions towards changing organizational conditions for nursing aides.

Association between psychosocial job characteristics and sickness absence due to low back symptoms using combined DCS and ERI models

OBJECTIVE

To evaluate the combined demand-control-support (DCS) and effort-reward-overcommitment (ERI-OC) stress models in association with sickness absence due to low back symptoms (SA-LBS).

METHODS

A total of 2,737 blue-collar workers recruited from 13 companies in the most populous province (Henan) of China were included in the study. Personal and physical job characteristics, psychosocial scales of the stress models, and SA-LBS data in the preceding year were collected by a self-reported questionnaire and analyzed by a multivariable logistic regression model. Tertile exposure levels (low, medium and high) were constructed to discriminate a risk level. Odds ratios (OR) with 95% confidence intervals (CI) were used as the association with SA-LBS.

RESULTS

A large percentage (84.5%) of the Chinese workers did not take sick leave after reporting low back symptoms during the preceding year. High job demand or medium-high reward was associated with SA-LBS. The association of the combined stress models and SA-LBS was not evident.

CONCLUSIONS

The ERI-OC model appeared to be more predictive of SA-LBS than the DCS model in the study population. The advantage of using combined stress models for predicting SA-LBS is not evident.

Assessment of psychological and social current working conditions in epidemiological studies: experiences from the MUSIC-Norrtälje study

Background: The aim of this study was to present, evaluate and propose a tool for the assessment of psychosocial working conditions in epidemiological studies. A referent group of the large epidemiological study, the MUSIC-Norrtälje study of musculoskeletal disorders, was used. The respondents were 950 working persons (585 female and 365 male). Method: Self-administered questionnaire and personal interview were used. The responses were subjected to factor analysis. The resulting model had components generated from the demand-control-support model and action theory. Result: The result supported the use of different aspects of psychological job demands. The interview data seemed to be more related to factual exposure and the questionnaire data more to individual perception. The usefulness of the model was supported by associations between the model and psychosomatic symptoms and sleep disturbances. Conclusion : A combination of interview and questionnaire increases the possibility of interpreting the association between working conditions and health and may provide a more effective basis for interventions.

Low Back Pain Prevalence and Related Workplace Psychosocial Risk Factors: A Study Using Data From the 2010 National Health Interview Survey

OBJECTIVES

The objectives of this study were to estimate prevalence of low back pain, to investigate associations between low back pain and a set of emerging workplace risk factors, and to identify worker groups with an increased vulnerability for low back pain in the United States.

METHODS

The data used for this cross-sectional study came from the 2010 National Health Interview Survey, which was designed to collect data on health conditions and related risk factors from the US civilian population. The variance estimation method was used to compute weighted data for prevalence of low back pain. Multivariable logistic regression analyses stratified by sex and age were performed to determine the odds ratios (ORs) and the 95% confidence interval (CI) for low back pain. The examined work-related psychosocial risk factors included work-family imbalance, exposure to a hostile work environment, and job insecurity. Work hours, occupation, and other work organizational factors (nonstandard work arrangements and alternative shifts) were also examined.

RESULTS

The prevalence of self-reported low back pain in the previous 3 months among workers in the United States was 25.7% in 2010. Female or older workers were at increased risk of experiencing low back pain. We found significant associations between low back pain and a set of psychosocial factors, including work-family imbalance (OR 1.27, CI 1.15-1.41), exposure to hostile work (OR 1.39, CI 1.25-1.55), and job insecurity (OR 1.44, CI 1.24-1.67), while controlling for demographic characteristics and other health-related factors. Older workers who had nonstandard work arrangements were more likely to report low back pain. Women who worked 41 to 45 hours per week and younger workers who worked >60 hours per week had an increased risk for low back pain. Workers from several occupation groups, including male health care practitioners, female and younger health care support workers, and female farming, fishing, and forestry workers, had an increased risk of low back pain.

CONCLUSIONS

This study linked low back pain to work-family imbalance, exposure to a hostile work environment, job insecurity, long work hours, and certain occupation groups. These factors should be considered by employers, policymakers, and health care practitioners who are concerned about the impact of low back pain in workers.

Psychosocial Work Environment and Musculoskeletal Symptoms among 21-Year-Old Workers: A Population-Based Investigation (2011-2013)

Background

The current labour market is becoming more flexible and informal, with job insecurity selectively affecting young workers. However, the role of these increasing adverse psychosocial working conditions on health outcomes remains little known among newly employed workers.

Objective

To estimate the associations between psychosocial work environment and musculoskeletal outcomes (widespread pain syndrome features and regional pain) in a population-based sample of young workers.

Methods

Cross-sectional data from workers aged 21 years were collected during the third wave of the EPITeen cohort study (2011-2013; n=650). The Job Content Questionnaire was used to characterize the psychosocial work environment according to the demand-control-support model. Data on pain and non-pain dimensions of the widespread pain syndrome (Fibromyalgia Survey Questionnaire) as well as on regional musculoskeletal pain (Nordic Musculoskeletal Questionnaire) were also collected. Crude and adjusted odds ratios (OR) with 95% confidence intervals (95% CI) were computed using logistic regression and all estimates were adjusted for sex, education and occupational biomechanical demands.

Results

Job insecurity was significantly associated to the non-pain dimension of the widespread pain syndrome (adjusted OR [95% CI]=1.51 [1.08, 2.12]). Young workers with strain jobs were significantly more likely to report high levels of non-pain symptoms when compared with those with no-strain jobs and this effect was even stronger when social support was added to the main exposure: workers with strain jobs and low social support had twice the odds of reporting high levels of non-pain features than those with high strain but high social support jobs (adjusted OR=1.86, 95% CI: 1.04, 3.31). These significant associations were not observed when widespread pain or multisite regional pain were the outcomes.

Conclusion

In the beginning of professional life, high strain jobs were associated to non-pain complaints, especially when the work environment provided also low social support.

Impacto do exercício na dor crônica

INTRODUÇÃO: A dor é uma experiência subjetiva, que pode resultar de características teciduais, mas que também abrange fatores de várias ordens, incluindo os emocionais, culturais e individuais. A dor crônica é persistente ou recorrente, por mais de 3 meses, de causa desconhecida e não está necessariamente associada a uma lesão no organismo. Os gastos associados a essa condição de saúde estimulam o sistema a investigar intervenções eficazes para o tratamento das dores em geral. O fenômeno da analgesia induzida pelo exercício é sobretudo observado em atletas e os mecanismos envolvidos ainda são desconhecidos, embora haja tendência a aceitar a ação do sistema opióide endógeno.OBJETIVO: Investigar o efeito de um programa de exercícios físicos sobre a dor crônica inespecífica.MÉTODO: A amostra foi constituída por 29 indivíduos que aderiram a um programa de exercícios domiciliares. Sendo aplicado o Questionário Internacional de Atividade Física (IPAQ) que permite estimar o tempo semanal gasto em atividades físicas de intensidade leve, moderada e vigorosa e a Escala Visual Analógica (EVA) que foi utilizada para avaliar a intensidade da dor. A análise estatística foi realizada de forma descritiva e inferencial.CONCLUSÃO: A aplicação de programas multidisciplinares, predominando a prescrição de exercícios aeróbicos, de fortalecimento e alongamentos, em um protocolo de exercícios domiciliares apresentou melhora efetiva no limiar de dor em paciente com dor crônica inespecífica.

Job strain, effort-reward imbalance and neck, shoulder and wrist symptoms among Chinese workers

The purpose of this study was to examine the association between psychosocial job stress (by the Job Control-Demand (JCD) model and Effort-Reward imbalance (ERI) model) and musculoskeletal (MS) symptoms among workers in China. Overall, 3,632 male and 1,706 female workers from 13 factories/companies participated in this study. Perceived job stress was evaluated by the Chinese version of the Job Content Questionnaire (JCQ) and ERI Questionnaire. Neck, shoulder and wrist symptoms were assessed by self-report during the past year. Workers reporting high job demands and low job control or high effort and low rewards had moderately increased risk for all MS symptoms. Odds ratios (ORs) were higher in workers reporting both high effort and low rewards. The combination of high physical job demands with low job control showed significant associations with MS symptoms. The effects of psychological demands on symptoms in women, effort and effort-reward imbalance on symptoms among both genders were increased as the number of regions with symptoms increased. These results suggest that high job strain and ERI are associated with neck, shoulder and wrist symptoms in Chinese factory workers independent of individual factors, physical factors, and other psychological variables.

Sick building syndrome (SBS) and sick house syndrome (SHS) in relation to psychosocial stress at work in the Swedish workforce

PURPOSE

Medical symptoms called sick building syndrome (SBS) and sick house syndrome (SHS) are usually investigated separately: in this study, SBS and SHS were explored simultaneously. The significance of personal factors, perceptions of air quality, and psychosocial work situation in explaining SBS and SHS were investigated.

METHODS

A random sample of 1,000 subjects (20-65 year) received a postal questionnaire including questions on personal factors, medical symptoms, and the psychosocial demand-control-support model. The response rate was 70 % (n = 695), of which 532 were occupationally active.

RESULTS

In logistic regression models, atopy, poor air quality at work, and low social support, especially low supervisor support, were associated with both SBS and SHS when age, gender, smoking, and BMI were introduced. The general work-related symptoms (headache, tiredness, nausea, and sensation of a cold) were also related to low control over work.

CONCLUSIONS

The perception of poor physical environmental conditions is associated with common medical symptoms that are both work and home related. The associations between medical symptoms and poor air quality are still present, even when controlling for the psychosocial environment.

Demands, skill discretion, decision authority and social climate at work as determinants of major depression in a 3-year follow-up study

PURPOSE

The psychosocial work environment may be a determinant of the development and course of depressive disorders, but the literature shows inconsistent findings. Thus, the aim of this study is to determine longitudinal effects of the job demands-control-support model (JDCSM) variables on the occurrence of major depression among working men and women from the general population.

METHODS

The sample comprised 4,710 working women and men living in Stockholm, who answered the same questionnaire twice, 3 years apart, who were not depressed during the first wave and had the same job in both waves. The questionnaire included JDCSM variables (demands, skill discretion, decision authority and social climate) and other co-variables (income, education, occupational group, social support, help and small children at home, living with an adult and depressive symptoms at time 1; and negative life events at time 2). Multiple logistic regressions were run to calculate odds ratios of having major depression at time 2, after adjustment for other JDCSM variables and co-variables.

RESULTS

Among women, inadequate work social climate was the only significant risk indicator for major depression. Surprisingly, among men, high job demands and low skill discretion appeared as protective factors against major depression.

CONCLUSIONS

The results showed a strong relationship between inadequate social climate and major depression among women, while there were no certain effects for the remaining exposure variables. Among men, few cases of major depression hampered well-founded conclusions regarding our findings of low job demands and high skill discretion as related to major depression.

Pain among women: Associations with socio-economic and work conditions

We examined pain prevalence (general/body sites) and its characteristics/consequences among a randomised sample of women from the general population between 18 and 64 years (n=3,616). We also scrutinised associations between pain and various factors (e.g. socio-economic) by means of multivariate logistic/linear regression analyses. The women completed a questionnaire assessing various areas (e.g. pain). The design was cross-sectional and data were collected during 8 consecutive weeks. Sixty-three per cent of women reported pain during the last 3 months, of which 65% during more than 3 months. The multivariate analyses revealed associations between various socio-economic factors (e.g. financial strain) and pain in general/all studied body sites. In addition, psychosocial work conditions (i.e. work strain and social support) were significantly related to pain. Moreover, the multivariate analyses conducted among women with pain indicated relationships between socio-economic/psychosocial work conditions, and pain characteristics (e.g. intensity) and consequences (i.e. disability). A large number of women from the general population suffer from pain, in particularly prolonged pain. Women in a deprived socio-economic situation not only run a higher pain risk, but also experience their pain as more severe/disabling than their more privileged counterparts. Improvements of, for example, the socio-economic status among women living in deprived social and material circumstances, along with improved working environment may be crucial to reduce women's pain problems.

Psychosocial experiences among primary care patients with and without musculoskeletal pain

We examined differences in demographic/financial characteristics, burnout, job demands/control/strain and symptoms of depression as measured by GHQ among primary care patients with (n=838) and without pain (n=135). In addition, we examined factors associated with the presence of pain by means of logistic regression analyses among all participants, and inter-relations between demographic/financial/pain/health variables, symptoms of depression, burnout, and disability by means of multivariate regression analyses among pain patients. The patients completed a questionnaire about areas such as job strain and burnout. The design was cross-sectional and data were collected during 15 consecutive days. The univariate analyses showed that pain patients, compared with patients without pain, were more often females, older, divorced, foreign-born, had been more often on sick-leave, were more preoccupied with how to make ends meet and had greater difficulties in raising a reasonable sum of money within a specific period of time. In addition, they had greater levels of depression symptoms, burnout, and job strain. However, the multivariate analyses showed that symptoms of depression and burnout were more associated with such variables as sick-leave and divorce than by pain parameters. The logistic regression revealed that the presence of pain was associated with female gender, sick-leave, and high levels of job strain and mean total burnout. Finally, pain patients had a severe clinical situation in terms of, for example, constant, intense, and prolonged pain, and experienced a high degree of disability due to pain. We corroborated previous findings and may have provided new insights into the experiences of pain patients that may be of importance when considering intervention. Although we pointed to some important factors associated with pain, symptoms of depression and burnout, much of their variation remains to be explained. Thus, further research appears necessary, not least concerning the role of burnout as an antecedent to pain.

Psychosocial work environment and prediction of job satisfaction among Swedish registered nurses and physicians - a follow-up study

In Sweden, the health care sector was subject to considerable changes during the 1990s: decreased costs, related staff redundancies and high rates of sick leave. The situation has now changed, and the sector is not facing the same all-embracing and turbulent changes. In addition, there is a shortage of nurses and physicians and a difficulty in retaining qualified staff. Regarding the psychosocial work environment, there is a lack of studies where both physicians and nurses are in focus. It is from a managerial perspective important to take a holistic approach towards questions regarding the work environment in general and the psychosocial work environment in particular. The aims of this study were to analyse similarities and differences in Registered Nurses and physicians' experience of quantitative and qualitative demands, control, role conflicts, role clarity, social support and job satisfaction in 2002 and 2009 and to analyse the stability in the prediction of job satisfaction over time. Questionnaires regarding psychosocial work environment aspects were distributed in 2002 and 2009, and a total of 860 nurses and 866 physicians answered the questionnaire. Independent t tests and linear stepwise regression analyses were conducted. The results indicate that the work environment has improved between 2002 and 2009 and that nurses experience their psychosocial working environment as more satisfactory than physicians. Social support, control, role conflicts, role clarity and qualitative demands were the best predictors of job satisfaction in 2002 and 2009. Quantitative demands did not contribute to predicting job satisfaction. Variables predicting job satisfaction are quite stable over time and are quite comparable for both nurses and physicians.

Occupational stress and the outcome of basic military training

BACKGROUND

Military training has a high dropout rate but the role of occupational stress is not known.

AIMS

To examine the relationship between occupational stress and outcome of training.

METHODS

A study of occupational stress in 476 army recruits (as measured in Week 4 of 23 weeks of basic military training) using previously identified risk factors for lack of success in training and outcome of training.

RESULTS

Using stepwise logistic regression, occupational stress levels as measured at Week 4 were significant predictors of outcome in training. Psychological scale scores predicted 85% of those who were asked to leave. Other factors previously thought to be predictive of outcome of training were not predictive in this cohort of recruits.

CONCLUSIONS

Levels of occupational stress measured 4 weeks into training predicted outcome of training.

Occupational Health Issues Among Employees of Home Care Agencies

L'objectif de cette communication est d'explorer les problèmes de santé occupationnelle qui touchent les employés des agences de soins à domicile. Les résultats d'un sondage et de groupes de discussion menés auprès de 892 employés de bureau et employés itinérants de trois agences de soins à domicile sans but lucratif montrent que les employés des agences de soins à domicile présentent un degré élevé de stress, de fatigue et d'épuisement. Ce stress relié au travail est particulièrement ressenti par les cadres, les infirmières et les thérapeutes. Lorsqu'on les compare aux résultats de l'Enquête sur la santé des Canadiens, on note que les employées des agences de soins à domicile sont plus susceptibles que la moyenne des travailleuses de souffrir d'allergies, d'asthme, d'arthrite ou de rhumatismes, de problème de dos, de haute pression, de migraines et de blessures reliées au travail. Plusieurs employées d'agences de soins à domicile signalent des douleurs ou des malaises dans plusieurs parties du corps. Les employées itinérantes de ces agences souffrent d'entorses ou de foulures, de luxations, de fractures et d'ecchymoses consécutives au fait qu'elle doivent soulever ou déplacer des patients, se pencher ou forcer, ou qu'elles font des chutes accidentelles. Elles souffrent également davantage de microtraumatismes répétés et ont davantage d'accidents d'automobiles. Le personnel de bureau des agences souffre de microtraumatismes répétés et de problèmes respiratoires. La communication aborde les conséquences pour l'établissement des politiques et la recherche.

Effectiveness of intervention for low back pain in female caregivers in nursing homes: a pilot trial based on multicenter randomization

OBJECTIVES

Although the importance of stretching exercise for pain-relieving and patient education is well documented for chronic lumbago patients, it is uncertain how effective on-the-job training (OJT) is for female caregivers in nursing homes. In the present pilot trial based on multicenter randomization, we evaluated the intervention effect of a lecture and stretching exercise on caregivers in nursing homes.

METHODS

Eighty-eight female caregivers (four nursing homes) volunteered to participate in this study, and they were separated into two groups randomly. For the intervention group, guidance by an orthopedist and an exercise instructor were provided as one OJT, and stretching exercises for only 6 min every day were recommended for low back pain prevention to the caregivers. Low back pain visual analogue scale (VAS), physical fitness, and mental and physical health were compared at baseline and immediately after the intervention.

RESULTS

A total of 29 (33%) participants withdrew by 12 weeks. Regarding the reasons for withdrawal, 28 participants resigned, and one took a leave of absence due to exacerbation of lumbago. Adherence to the stretching exercises was 2.3 ± 1.3 (mean ± SD) times per week. No significant differences were seen for any outcome measurements. The high adherence group (≧3 times per week) did not show a change in the VAS, but the low adherence group (<3 times per week) and control group showed a tendency towards an increased score (p = 0.068).

CONCLUSIONS

Even with the conduct of one OJT, and exercises of only 6 min every day, the adherence of caregivers was low, and there appeared to be few effects of the OJT.

Psychosocial working conditions and exhaustion in a working population sample of Swedish middle-aged men and women

BACKGROUND

Exhaustion is a concept of interest for both occupational health research and stress-disease theory research. The aim of the present study was to explore associations between chronic stressors, in terms of psychosocial working conditions, and exhaustion in a Swedish middle-aged population sample.

METHODS

A vocationally active population sample of the Malmö Shoulder and Neck Study cohort, comprising 2555 men and 2466 women between 45 and 64 years of age, was used. Psychosocial working conditions, assessed by means of the demand-control-support model, were measured longitudinally with a 1-year interval. Exhaustion was assessed by the SF-36 vitality scale and measured at follow-up, yielding a cross-sectional study design.

RESULTS

Exhaustion was twice as common in women as in men. High psychological job demands, low job control and low job support were independently associated with exhaustion in both men and women. These associations remained after controlling for a variety of potential confounders and mediators, including socio-demographic factors, lifestyle factors, musculoskeletal pain, disease, other work-related factors (including physical workload) and non-work-related factors. High demands in combination with low control (job strain), and job strain combined with low job support (iso-strain), increased the risk for exhaustion.

CONCLUSION

Psychosocial working conditions seem to contribute to exhaustion in middle-aged men and women. Future research should include exploration of exhaustion as a possible mediator between work stress and disease, as well as exploration of other chronic stressors, including non-work-related stressors, regarding their effects on exhaustion in men and women.

The predictive effect of fear-avoidance beliefs on low back pain among newly qualified health care workers with and without previous low back pain: a prospective cohort study

BACKGROUND

Health care workers have a high prevalence of low back pain (LBP). Although physical exposures in the working environment are linked to an increased risk of LBP, it has been suggested that individual coping strategies, for example fear-avoidance beliefs, could also be important in the development and maintenance of LBP. Accordingly, the main objective of this study was to examine (1) the association between physical work load and LBP, (2) the predictive effect of fear-avoidance beliefs on the development of LBP, and (3) the moderating effect of fear-avoidance beliefs on the association between physical work load and LBP among cases with and without previous LBP.

METHODS

A questionnaire survey among 5696 newly qualified health care workers who completed a baseline questionnaire shortly before completing their education and a follow-up questionnaire 12 months later. Participants were selected on the following criteria: (a) being female, (b) working in the health care sector (n = 2677). Multinomial logistic regression analysis was used to evaluate the effect of physical work load and fear-avoidance beliefs on the severity of LBP.

RESULTS

For those with previous LBP, physical work load has an importance, but not among those without previous LBP. In relation to fear-avoidance beliefs, there is a positive relation between it and LBP of than 30 days in both groups, i.e. those without and with previous LBP. No moderating effect of fear-avoidance beliefs on the association between physical work load and LBP was found among cases with and without LBP.

CONCLUSION

Both physical work load and fear-avoidance beliefs matters in those with previous LBP. Only fear-avoidance beliefs matters in those without previous LBP. The study did not find a moderating effect of fear-avoidance beliefs on the association between physical work load and LBP.

Job strain in physical therapists

BACKGROUND

Job stress has been associated with poor outcomes. In focus groups and small-sample surveys, physical therapists have reported high levels of job stress. Studies of job stress in physical therapy with larger samples are needed.

OBJECTIVE

The purposes of this study were: (1) to determine the levels of psychological job demands and job control reported by physical therapists in a national sample, (2) to compare those levels with national norms, and (3) to determine whether high demands, low control, or a combination of both (job strain) increases the risk for turnover or work-related pain.

DESIGN

This was a prospective cohort study with a 1-year follow-up period.

METHODS

Participants were randomly selected members of the American Physical Therapy Association (n=882). Exposure assessments included the Job Content Questionnaire (JCQ), a commonly used instrument for evaluation of the psychosocial work environment. Outcomes included job turnover and work-related musculoskeletal disorders.

RESULTS

Compared with national averages, the physical therapists reported moderate job demands and high levels of job control. About 16% of the therapists reported changing jobs during follow-up. Risk factors for turnover included high job demands, low job control, job strain, female sex, and younger age. More than one half of the therapists reported work-related pain. Risk factors for work-related pain included low job control and job strain.

LIMITATIONS

The JCQ measures only limited dimensions of the psychosocial work environment. All data were self-reported and subject to associated bias.

CONCLUSIONS

Physical therapists' views of their work environments were positive, including moderate levels of demands and high levels of control. Those therapists with high levels of demands and low levels of control, however, were at increased risk for both turnover and work-related pain. Physical therapists should consider the psychosocial work environment, along with other factors, when choosing a job.

Problematic interpersonal relationships at work and depression: a Swedish prospective cohort study

OBJECTIVES

Studies have shown that interpersonal relations at work are important for several health related outcomes. The aim of the present study was to investigate whether low social support, serious conflict, exclusion by superiors or by co-workers at work may be determinants of depression.

METHODS

In a representative Swedish cohort study data were obtained in two waves three years apart. 4,040 women and men who did not change their jobs between the waves were chosen for the study. Exposure and confounders were obtained at Time 1 and outcome, depression according to Bech's MDI at Time 2. Previous depression was controlled for by adjusting for depression at Time 1. Data were analyzed using multiple logistic regression analyses.

RESULTS

Odds-ratios adjusted for possible confounders and depression at base-line showed significant effects for all four exposures on depression (adjusted OR, low social support 1.5 CI 95% 1.1-2.0, serious conflict 1.4 CI 95% 1.1-1.9, exclusion by superiors 1.6 CI 95% 1.2-2.1 and exclusion by co-workers 1.7 CI 95% 1.2-2.3).

CONCLUSIONS

The present results support the conclusion that problematic interpersonal relationships at work can be determinants of depression. These prospective findings may be of relevance for prevention and when rehabilitating depressed patients.

The relationship between lifestyle, working environment, socio-demographic factors and expulsion from the labour market due to disability pension among nurses

BACKGROUND

Denmark is facing a shortage of nurses and this trend is anticipated to worsen within the next decades. The major reason for this shortage is that only very few nurses remain employed until the general retirement age. Every year several nurses are expelled from the labour market prematurely which causes a problem not only for the disabled nurses but also because it can affect the morale and productivity among the remaining personnel while new staff members are hired and trained.

AIM

The aim of the study was to analyse the relationship between lifestyle, working environment, socio-demographic factors and disability pension (DP) among nurses.

METHODS

The study was based on 12,028 nurses above the age of 44 who in 1993 completed a questionnaire. The survey information was combined with longitudinal data from a register compiled by Statistics Denmark. The follow-up period was from 1993 to 2002.

RESULTS

Nurses with relatively low gross incomes were more likely to become disability pensioners compared to nurses with high incomes (hazard ratio, HR 1.33 and HR 2.17). Also, nurses who were singles had a higher probability of entering DP (HR 1.63). Nurses who worked fixed evening or night shifts had higher risks of DP than nurses who worked daytime exclusively (HR 1.51 and HR 1.45). Smoking, obesity and having a sedentary lifestyle were also risk indicators for DP (HR 1.42, HR 1.63 and HR 1.50). Furthermore, low influence and high physical demands at work increased the probability of entering DP (HR 1.39 and HR 1.22).

CONCLUSION

DP among nurses is influenced by a number of factors. Nurses who have poor working environments and/or unhealthy lifestyles have higher risks of becoming disability pensioners. Also, nurses who are singles and/or have low gross incomes have higher probability of entering DP.

Work-related musculoskeletal disorders in physical therapists: a prospective cohort study with 1-year follow-up

BACKGROUND

Work-related musculoskeletal disorders (WMSDs) have a significant impact on physical therapists, but few studies have addressed the issue. Research is needed to determine the scope of the problem and the effects of specific risk factors.

OBJECTIVES

The objectives of this study were: (1) to determine the 1-year incidence rate of WMSDs in physical therapists and (2) to determine the effects of specific risk factors.

DESIGN

This was a prospective cohort study with 1-year follow-up.

METHODS

Subjects were randomly selected American Physical Therapy Association members (N=882). Exposure assessment included demographic data, physical risk factors, job strain, and specific physical therapy tasks. The primary outcome was WMSDs, with a severity rating of at least 4/10 and present at least once a month or lasting longer than a week.

RESULTS

The response rate to the baseline questionnaire was 67%. Ninety-three percent of the subjects who responded to the baseline questionnaire responded to the follow-up questionnaire. The 1-year incidence rate of WMSDs was 20.7%. Factors that increased the risk for WMSDs included patient transfers, patient repositioning, bent or twisted postures, joint mobilization, soft tissue work, and job strain.

LIMITATIONS

The primary limitation of this study was the number of therapists who had a change in their job situation during the follow-up year.

CONCLUSIONS

Work-related musculoskeletal disorders are prevalent in physical therapists. Physical therapy exposures, patient handling, and manual therapy, in particular, increase the risk for WMSDs.

Psychosocial risk factors for work-related musculoskeletal disorders of the lower-back among long-haul international female flight attendants

AIM

This paper is a report of a study to examine the relationships between work-related psychosocial factors and lower-back work-related musculoskeletal disorders among long-haul international female flight attendants.

BACKGROUND

Recent attention has focused on the influence of work-related psychosocial factors on work-related musculoskeletal disorders. To date, however, little is known about the influence of psychosocial factors at work on lower back work-related musculoskeletal disorders in female flight attendants.

METHOD

A cross-sectional, mailed survey was conducted in 2004 with flight attendants in one major airline who were randomly selected from a union membership list. The work-related psychosocial factors included psychological job demand, decision latitude, social support, job insecurity, and external environmental concerns. Physical load was defined by overall strenuousness across 41 job tasks and measured by a 4-point scale of strenuousness. Lower-back work-related musculoskeletal disorders were defined as lower-back symptoms that occurred at least once a month or lasted at least 1 week in the past year and caused at least moderate pain.

FINDINGS

The flight attendants with lower back work-related musculoskeletal disorders, compared with those without lower-back work-related musculoskeletal disorders, had higher perceived psychological job demands, job insecurity, and physical load. After controlling for physical load and personal factors, high job insecurity significantly increased the risk for lower-back work-related musculoskeletal disorders.

CONCLUSION

Occupational health nurses in the airline industry should be cognizant of the importance of assessing the influence of both job tasks and work-related psychosocial factors on lower-back work-related musculoskeletal disorders.

Psychosocial Factors in Musculoskeletal Disorders

Work-related musculoskeletal disorders (MSD) have a multifactorial etiology that includes not only physical stressors but also psychosocial risk factors, such as job strain, social support at work, and job dissatisfaction. Once an injury has occurred, psychosocial factors, such as depression and maladaptive pain responses, are pivotal in the transition from acute to chronic pain and the development of disability. Interventions to prevent MSD incidence and address psychosocial risk factors for delayed recovery are described.

Personal and psychosocial factors and symptoms compatible with sick building syndrome in the Swedish workforce

A random sample of 1000 subjects (20-65 years of age) received a postal questionnaire regarding sick building syndrome (SBS), including the three-dimensional model of demand-control-support (DCS). The response rate was 70% (n = 695), and 532 were occupationally active. Female gender and atopy were the main predictors of symptoms. Eye symptoms were more common at low social support combined with strained work situation [odds ratio (OR) 2.37], and at high social support combined with active work situation (OR 3.00). Throat symptoms were more common at low social support combined with either passive (OR 1.86) or strained situation (OR 2.42). Tiredness was more common at low social support combined with either passive (OR 2.41), strained (OR 2.25), or active situation (OR 1.87), and at high social support combined with active work situation (OR 1.83). Low social support combined with either passive (P = 0.01) or strained job situation (P = 0.01) was associated with a higher symptom score (SC). The lowest SC was found at a relaxed work situation, irrespective of social support. In conclusion, female gender, low age, asthma, atopy and psychosocial work environment are associated with symptoms. The three-dimensional model can predict symptoms compatible with SBS, but in a more complex way than earlier research indicated. Practical Implications A multi-disciplinary approach, including psychosocial stress factors as well as personal factors such as gender, age, atopy and asthma, and indoor exposures, should be applied in studies on symptoms compatible with sick building syndrome (SBS). Males and females perceive psychosocial work conditions differently, and may react differently to job stressors. The psychosocial work environment can be as important as gender and atopy as a predictor of SBS symptoms.

Back pain in direct patient care providers: early intervention with cognitive behavioral therapy

Back pain and injury are a widespread problem for direct care providers and can lead to disability and job loss. Although most intervention studies focus on the number of reported injuries as the outcome variable, pain is a leading indicator of impending injury. More secondary prevention interventions focusing on early detection and treatment of pain are needed to reduce injuries. The primary aim of this study was to assess the feasibility and effect size of a cognitive behavioral therapy (CBT) intervention to reduce the measures of back pain, stress, and disability in direct care providers working with back pain. The secondary aim was to assess the association between affect and outcome variables, particularly unscheduled work absence, which is a component of disability. This randomized clinical trial recruited 32 registered nurses and nursing assistants with a history of back pain in the past year and assigned them to either an intervention or a control group. The CBT intervention was a weekly stress and pain management session over 6 weeks led by a clinical psychologist. Data for both groups were collected at baseline and at 6 weeks, with work absence data caused by back pain self-reported for 12 weeks. Pain intensity scores declined in the intervention group, indicating a large effect. However, stress scores increased. Depression scores accounted for one-third of the variance in hours absent because of back pain. Although there was a high dropout rate in the intervention group, a cognitive-behavioral intervention shows promise as a secondary prevention intervention.

Prevalence of and risk factors for low back pain among staffs in schools for physically and mentally handicapped children

The objective of this study is to clarify the prevalence of and risk factors for low back pain (LBP) in schools for physically and mentally handicapped children. This study design is a cross-sectional study. The subjects included were 1,869 staff members from 19 prefectural schools for children in Shizuoka Prefecture, Japan, which included schools for the blind, deaf-mutes, physically handicapped, and mentally retarded children. A total of 975 subjects completed two postal questionnaires which included morbidity, demographic factors, nursing activity, and psychosocial factors. The answer rate was 52%. The one-month prevalence of LBP was 45%. According to the classification of nursing activity, assistance in movement 1.67 (95% CI 1.27-2.14), excretory function 1.45 (1.11-1.88), and feeding 1.44 (1.10-1.90) showed significant increases in the odds ratio. The adjusted odds ratio significantly increased by 2.35 (1.78-3.11) in the group with depression symptoms as well as in the group with job stressors such as quantitative, qualitative, and physical work loads, job control, utilization of technique, interpersonal conflicts, and degree of satisfaction with their work/home life.