Change in job strain and progression of atherosclerosis: The Cardiovascular Risk in Young Finns study.

[Correction Notice: An erratum for this article was reported in Vol 16(2) of Journal of Occupational Health Psychology (see record 2011-06502-001). The order of authorship was listed incorrectly. The correct order is listed in the correction.] Evidence of the association between job strain, that is, a combination of high psychological demands and low job control, and markers of atherosclerosis is mixed, but few studies with repeat measures are available. The purpose of this study was to examine cross-sectional and longitudinal associations between job strain and atherosclerosis. The participants were 335 men and 374 women from the prospective Cardiovascular Risk in Young Finns study (mean age 38.5 years). Two sequential measurements of job strain and carotid intima-media thickness (IMT) were analyzed. No cross-sectional or longitudinal association between job strain and IMT was observed in women. In men, a cross-sectional association was found in 2001, but not in 2007. No dose-response effect was visible, nor a simple association between progression of job strain and progression of IMT. Instead, a more complex pattern of correlation was found in men with large decreases in job strain being associated with slower progression of IMT and combined decreases in job control and demands (a change toward passive jobs) being associated with greater IMT progression. These data suggest that temporal changes in job demands and control are associated with IMT in men via multiple mechanisms. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

A test of the demand-control/support model of work stress in correctional officers

The demand-control/support model of work stress was tested in a sample of 419 correctional officers. The results suggest a link between certain work characteristics (high demands, low control, and low support) and strain symptoms (e.g., psychological distress, job dissatisfaction) as well as with negative affectivity (NA). On the other hand, other job characteristics (high demands and high control) were associated with positive behavioral outcomes (seeking feedback, looking at work as a challenge). Workers in high-isolation strain jobs with the greatest work exposure showed higher levels of strain and NA than workers with less experience working in the same job. Results suggest that work experience may affect long-term personality evolution. It is concluded that studies that control for the nuisance aspects of trait NA may underestimate the impact of the work environment on strain.     

A test of the demand–control/support model of work stress in correctional officers.

The demand–control/support model of work stress was tested in a sample of 419 correctional officers. The results suggest a link between certain work characteristics (high demands, low control, and low support) and strain symptoms (e.g., psychological distress, job dissatisfaction) as well as with negative affectivity (NA). On the other hand, other job characteristics (high demands and high control) were associated with positive behavioral outcomes (seeking feedback, looking at work as a challenge). Workers in high-isolation strain jobs with the greatest work exposure showed higher levels of strain and NA than workers with less experience working in the same job. Results suggest that work experience may affect long-term personality evolution. It is concluded that studies that control for the nuisance aspects of trait NA may underestimate the impact of the work environment on strain. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

"Change in job strain and progression of atherosclerosis: The Cardiovascular Risk in Young Finns study": Correction to Rosenstr?m et al. (2011).

Reports an error in "Change in job strain and progression of atherosclerosis: The Cardiovascular Risk in Young Finns study" by Tom Rosenstr?m, Mirka Hintsanen, Mika Kivim?ki, Markus Jokela, Markus Juonala, Jorma S. Viikari, Olli T. Raitakari and Liisa Keltikangas-J?rvinen (Journal of Occupational Health Psychology, 2011[Jan], Vol 16[1], 139-150). The order of authorship was listed incorrectly. The correct order is listed in the correction. (The following abstract of the original article appeared in record 2011-01470-011.) Evidence of the association between job strain, that is, a combination of high psychological demands and low job control, and markers of atherosclerosis is mixed, but few studies with repeat measures are available. The purpose of this study was to examine cross-sectional and longitudinal associations between job strain and atherosclerosis. The participants were 335 men and 374 women from the prospective Cardiovascular Risk in Young Finns study (mean age 38.5 years). Two sequential measurements of job strain and carotid intima-media thickness (IMT) were analyzed. No cross-sectional or longitudinal association between job strain and IMT was observed in women. In men, a cross-sectional association was found in 2001, but not in 2007. No dose-response effect was visible, nor a simple association between progression of job strain and progression of IMT. Instead, a more complex pattern of correlation was found in men with large decreases in job strain being associated with slower progression of IMT and combined decreases in job control and demands (a change toward passive jobs) being associated with greater IMT progression. These data suggest that temporal changes in job demands and control are associated with IMT in men via multiple mechanisms. (PsycINFO Database Record (c) 2011 APA, all rights reserved)     

Job Demands and Job Performance: The mediating effect of psychological and physical strain and the moderating effect of role clarity.

The aims of the present study were twofold: First, in differentiating between specific job characteristics, the authors examined the moderating influence of role clarity on the relationship between job demands and psychological and physical strain. Second, in providing a more comprehensive link between job demands and job performance, the authors examined strain as a mediator of that relationship. Participants were 1,418 Army cadets attending a 35-day assessment center. Survey data were collected on Day 26 of the assessment center and performance ratings were assessed throughout the assessment center period by expert evaluators. Role clarity was found to moderate the job demands-strain relationship. Specifically, cadets experiencing high demands reported less physical and psychological strain when they reported high role clarity. Moreover, psychological strain significantly mediated the demands-performance relationship. Implications are discussed from theoretical and applied perspectives. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Work-family conflict and psychosocial work environment stressors as predictors of job stress in a cross-cultural study.

The purpose of this cross-cultural study was to investigate the relationship between work-family conflict (WFC), family-work conflict (FWC), job demands, job control, social support, flexibility in working hours, and job stress. The sample consisted of 27 doctors and 328 nurses from Norway, as well as 111 doctors and 136 nurses from India. The results indicate that predictors of job stress in India are different from Norway and different from doctors to nurses. For Norwegian doctors, none of the study variables were predictors of job stress. For Norwegian nurses WFC, high job demands, and low flexibility in working hours were predictors of job stress. For Indian doctors low job control and for Indian nurses high FWC and low social support were predictors of job stress. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Subjective expectation, outcome discrepancy, and job satisfaction.

Investigated subjective expectation as a source of satisfaction valence associated with job outcomes. Four variables were of major interest: desired outcome, actual outcome, subjective expectation, and job satisfaction. The following hypotheses were tested, using 3 measures of satisfaction in a laboratory analog study with 120 undergraduates: (a) A positive linear relationship exists between "actual outcome–desired outcome" discrepancy and job satisfaction. (b) A negative linear relationship exists between subjective expectation and job satisfaction. Results on all dependent measures support the 1st hypothesis. Support for the 2nd hypothesis was evident but not consistent across the 3 satisfaction measures. The problem of equivalence of satisfaction measures is discussed, as is the relationship of the results to existing research and implications for further investigation. (French summary) (21 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Safety at work: A meta-analytic investigation of the link between job demands, job resources, burnout, engagement, and safety outcomes.

In this article, we develop and meta-analytically test the relationship between job demands and resources and burnout, engagement, and safety outcomes in the workplace. In a meta-analysis of 203 independent samples (N = 186,440), we found support for a health impairment process and for a motivational process as mechanisms through which job demands and resources relate to safety outcomes. In particular, we found that job demands such as risks and hazards and complexity impair employees' health and positively relate to burnout. Likewise, we found support for job resources such as knowledge, autonomy, and a supportive environment motivating employees and positively relating to engagement. Job demands were found to hinder an employee with a negative relationship to engagement, whereas job resources were found to negatively relate to burnout. Finally, we found that burnout was negatively related to working safely but that engagement motivated employees and was positively related to working safely. Across industries, risks and hazards was the most consistent job demand and a supportive environment was the most consistent job resource in terms of explaining variance in burnout, engagement, and safety outcomes. The type of job demand that explained the most variance differed by industry, whereas a supportive environment remained consistent in explaining the most variance in all industries. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

"The very best of the millennium": Longitudinal research and the demand-control-(support) model.

This study addressed the methodological quality of longitudinal research examining R. Karasek and T. Theorell's (1990) demand-control-(support) model and reviewed the results of the best of this research. Five criteria for evaluating methodological quality were used: type of design, length of time lags, quality of measures, method of analysis, and nonresponse analysis. These criteria were applied to 45 longitudinal studies, of which 19 (42%) obtained acceptable scores on all criteria. These high-quality studies provided only modest support for the hypothesis that especially the combination of high demands and low control results in high job strain. However, good evidence was found for lagged causal effects of work characteristics, especially for self-reported health or well-being outcomes. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Job strain and evolution of mental health among nurses.

The objective of this 2nd phase of a 2-year study among female nurses was to provide further empirical validation of the demands-control and social support model. The association of job strain with psychological problems and the potential modifying role of social support at work were examined. A questionnaire was sent at the workplace to 1,741 nurses. The same associations were found between psychological demands, decision latitude, and a combination of the 2 with psychological distress and emotional exhaustion for current exposure and for cumulative exposure. Social support had a direct effect on these psychological symptoms but did not modify their association with job strain. Longitudinal and prospective data are needed to study the occurrence and persistence of health problems when exposure is maintained or retrieved. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Work characteristics, learning-related outcomes, and strain: A test of competing direct effects, mediated, and moderated models.

Direct effect, mediated, and moderated models of the relationship among work characteristics (job control, job demands), learning-related outcomes (skill utilization, self-efficacy), and strain (anxiety, depression) were compared. Three independent samples of call center employees were used, 2 cross-sectional (Ns=427 and 203) and 1 longitudinal (N=144). Initial analysis of the cross-sectional samples using structural equation modeling revealed that mediated models provided the best fit to the data. Skill utilization mediated the effect of control on depression, and depression partially mediated the effect of control on skill utilization. Longitudinal hierarchical regression analysis confirmed these findings. Results indicate that, in this occupational context learning reduces strain, strain inhibits learning, and job control is an important precursor of both these relationships. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Quantitative Versus Emotional Demands Among Swedish Human Service Employees: Moderating Effects of Job Control and Social Support.

The purpose of the current study was to conduct a longitudinal test of the moderating effect of both job control and social support on the relation between job demands and burnout in human service work. To adapt the study to human service work, quantitative as well as emotional demands were examined. A longitudinal survey with a 1-year time interval yielded a panel group encompassing 2,255 employees from the Social Insurance Organization in Sweden. Hierarchical regression analyses were used, controlling for demographic variables and the related dependent variable at Time 1. The analyses were conducted for quantitative and emotional demands separately and revealed main effects. Slightly more main effects were found for emotional demands. In addition, 1 interaction effect was found between emotional demands and job control with regard to emotional exhaustion. In conclusion, the present study shows that emotional demands are as important as, and sometimes more important than, quantitative demands in human service work. Some practical implications and suggestions regarding future research are proposed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Workplace assault: An emerging job stressor.

Examined the psychological effects of physical assault at the workplace and the effects of more traditional psychological job stressors (high demands, low control, low social support) among approximately 5,000 public service employees (mean age 39 yrs). Ss who were assaulted were more likely to report depression, anxiety, and low job satisfaction than their nonassaulted coworkers. Evidence for a moderating effect of work-related social support on the relationship between assault and depression is noted. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Life on the line: Job demands, perceived co-worker support for safety, and hazardous work events.

The present study of 334 United Kingdom trackside workers tested an interaction hypothesis. We hypothesized, drawing on the job demands-resources framework, that perceived support for safety (from senior managers, supervisors, and coworkers) as job resources would weaken the relationship between higher job demands and more frequent hazardous work events. Consistent with social impact theory, we predicted that perceived coworker support for safety would be particularly influential when trackside workers faced higher job demands. Moderated multiple regression showed that, of all three sources of perceived support for safety, perceived coworker support for safety was most important for keeping employees safe in the face of high job demands. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Stressful Work, Psychological Job Strain, and Turnover: A 2-Year Prospective Cohort Study of Truck Drivers.

Based on a model that combines existing organizational stress theory and job transition theory, this 2-year longitudinal study examined antecedents and consequences of turnover among Dutch truck drivers. For this purpose, self-reported data on stressful work (job demands and control), psychological strain (need for recovery after work and fatigue), and turnover were obtained from 820 drivers in 1998 and 2000. In agreement with the model, the results showed that strain mediates the influence of stressful work on voluntary turnover. Also in conformity with the model, job movement to any job outside the trucking industry (i.e., interoccupational turnover) resulted in a larger strain reduction as compared to job movement within the trucking industry (intraoccupational turnover). Finally, strain was found to stimulate interoccupational turnover more strongly than it stimulated intraoccupational turnover. These findings provide a thorough validation of existing turnover theory and give new insights into the turnover (decision) process. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

The role of personal resources in the job demands-resources model.

This study examined the role of three personal resources (self-efficacy, organizational-based self-esteem, and optimism) in the Job Demands-Resources (JD-R) model. The authors hypothesized that personal resources (1) moderate the relationship between job demands and exhaustion, (2) mediate the relationship between job resources and work engagement, and (3) relate to how employees perceive their work environment and well-being. Hypotheses were tested among 714 Dutch employees. Results showed that personal resources did not offset the relationship between job demands and exhaustion. Instead, personal resources mediated the relationship between job resources and engagement/exhaustion and influenced the perception of job resources. The implications of these findings for the JD-R model are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Factors influencing ratings of marital quality by individuals within dual-career marriages: A conceptual model.

In the present study, the authors proposed and tested a model of marital quality among individuals (52 men, 55 women) in dual-career marriages. The model was constructed within a social role framework and includes variables that positively influence marital quality, those that negatively influence marital quality, and those that mediate the relationship between the negative factors and marital quality. A path analysis indicated that marital quality was predicted directly by love, sexual satisfaction, communication, and satisfaction with the dual-career lifestyle. Objective demands of job and family roles predicted perceived job-family role strain. Coping, but not perceived equity, mediated the relationship between role strain and marital quality. Combined income and social support impacted marital quality indirectly through satisfaction with the dual-career lifestyle. Implications for counselors are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Karoshi--death from overwork: occupational health consequences of Japanese production management

There is considerable international interest in Japanese production management (JPM), known in the West as "lean production." Advocates of this new form of management argue that it improves both economic productivity and health. In Japan, however, the relationship between JPM and sudden death due to cardiovascular and cerebrovascular disease has been an important topic of debate since the 1970s. Japanese have named these types of deaths karoshi, which means "death from overwork." In North America and Western Europe a number of studies have demonstrated a significant relationship between high job strain (high production demands and low levels of control and social support) and cardiovascular disease. This article reviews the elements of JPM and examines their potential health consequences. The authors present an overview of karoshi, discuss its possible connections to specific ideological and organizational characteristics of JPM, and suggest the job strain mechanism as a possible pathway between karoshi and JPM. They conclude by discussing the need for comparative research that examines the health effects of work organization and management methods cross-culturally.     

Job insecurity in white-collar workers: Toward an explanation of association with health.

This article describes 2 studies that examined changes in psychosocial work characteristics (job strain model) and health-related behaviors as potential explanations of the job insecurity–health relationship in a longitudinal cohort of white-collar British civil servants. Job insecurity arising from anticipation of change was associated with a modest increase in self-reported morbidity, whereas chronic job insecurity was associated with some adverse physiological changes. Anticipation of change and chronic job insecurity were associated with adverse changes in other psychosocial work characteristics, but few changes were significant and consistent across both exposure groups. Changes in health-related behaviors associated with either exposure were slight. Apart from a minor role for social support at work in both sexes and a modest role for job demands in women, adverse changes in these factors explain little of the job insecurity–health relationship. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Dimensions of work appraisal: Stress, strain, coping, job satisfaction, and negative affectivity.

Stress, strain, and coping were measured by S. H. Osipow and A. R. Spokane's (1987) Occupational Stress Inventory with 249 adults in 75 occupations; results supported the validity of the inventory. Higher stress predicted higher strain and lower job satisfaction; the converse was true for coping, although the coping–satisfaction link was weak. In hierarchical regression analyses, predictor variables were gender, age, education, job tenure, negative affectivity, 6 stress measures, and 4 coping measures. Outcome variables were 4 measures of occupational strain (vocational, psychological, interpersonal, and physical) and 3 measures of job satisfaction (intrinsic, extrinsic, and general). The 7 hierarchical regressions revealed strong stress–strain and stress–job satisfaction relationships; negative affectivity had variable impacts on strain but little influence on job satisfaction. (PsycINFO Database Record (c) 2010 APA, all rights reserved)