Individual differences in utilizing control to cope with job demands: effects on susceptibility to infectious disease

A systematic review of the impact of psychosocial factors on immunity: Implications for enhancing BCG response against tuberculosis

BACKGROUND

Tuberculosis (TB) remains an urgent global public health priority, causing 1.5 million deaths worldwide in 2018. There is evidence that psychosocial factors modulate immune function; however, how this may influence TB risk or BCG vaccine response, and whether this pathway can be modified through social protection, has not been investigated. This paper aims to: a) systematically review evidence of how psychosocial factors influence the expression of biomarkers of immunity, and b) apply this general evidence to propose plausible TB-specific pathways for future study.

METHODS

Papers reporting on the impact of psychosocial stressors on immune biomarkers in relation to infectious disease risk were identified through a search of the databases MEDLINE, PsycINFO, Global Health and PsycEXTRA alongside reference list and citation searching of key papers. Data extraction and critical appraisal were carried out using a standardised form. The findings were tabulated and synthesised narratively by infectious disease category, and used to propose plausible mechanisms for how psychosocial exposures might influence immune outcomes relevant to TB and BCG response.

RESULTS

27,026 citations were identified, of which 51 met the inclusion criteria. The literature provides evidence of a relationship between psychosocial factors and immune biomarkers. While the direction and strength of associations is heterogenous, some overarching patterns emerged: adverse psychosocial factors (e.g. stress) were generally associated with compromised vaccine response and higher antibody titres to herpesviruses, and vice versa for positive psychosocial factors (e.g. social support).

CONCLUSIONS

The evidence identifies pathways linking psychosocial factors and immune response: co-viral infection and immune suppression, both of which are potentially relevant to TB and BCG response. However, the heterogeneity in the strength and nature of the impact of psychosocial factors on immune function, and lack of research on the implications of this relationship for TB, underscore the need for TB-specific research.

Resources Matter: Combined Influence of Job Demands and Job Control on Creative Process Engagement

Considerable research has been conducted on employee creativity, but it has generally focused on creative outcomes and rarely paid attention to employees' engagement in creative processes, that is, creative process engagement. Further, job characteristics as antecedents are little understood. Drawing on the job demands-resources model and the conservation of resources theory, this study examines the relationship between challenge-hindrance demands and creative process engagement at different levels of job control. In total, 572 questionnaires from China were used to test our proposed model through hierarchical regression analysis. The results show that when job control is high, the effect of challenge demands on creative process engagement is U-shaped, while that of hindrance demands is negative. When job control is low, both challenge and hindrance demands are not related to creative process engagement.

Healthy offshore workforce? A qualitative study on offshore wind employees' occupational strain, health, and coping

BACKGROUND

Offshore work has been described as demanding and stressful. Despite this, evidence regarding the occupational strain, health, and coping behaviors of workers in the growing offshore wind industry in Germany is still limited. The purpose of our study was to explore offshore wind employees' perceptions of occupational strain and health, and to investigate their strategies for dealing with the demands of offshore work.

METHODS

We conducted 21 semi-structured telephone interviews with employees in the German offshore wind industry. The interviews were transcribed and analyzed in a deductive-inductive approach following Mayring's qualitative content analysis.

RESULTS

Workers generally reported good mental and physical health. However, they also stated perceptions of stress at work, fatigue, difficulties detaching from work, and sleeping problems, all to varying extents. In addition, physical health impairment in relation to offshore work, e.g. musculoskeletal and gastrointestinal complaints, was documented. Employees described different strategies for coping with their job demands. The strategies comprised of both problem and emotion-focused approaches, and were classified as either work-related, health-related, or related to seeking social support.

CONCLUSIONS

Our study is the first to investigate the occupational strain, health, and coping of workers in the expanding German offshore wind industry. The results offer new insights that can be utilized for future research in this field. In terms of practical implications, the findings suggest that measures should be carried out aimed at reducing occupational strain and health impairment among offshore wind workers. In addition, interventions should be initiated that foster offshore wind workers' health and empower them to further expand on effective coping strategies at their workplace.

Job Control and Social Support as Coping Resources in Job Satisfaction

This study examined the effects of active coping on job satisfaction in the context of the job demands-control-support model. Participants were 867 employees (811 men and 56 women, M age = 35.2 yr.) of a large electrical company in Japan. Hierarchical multiple regression analysis examined whether effects of active coping on job satisfaction might depend on the extent of coping resources, such as job control or social support (supervisor and coworker). Analysis showed that the effect of active coping on job satisfaction depended on the extent of coworkers' support, not on job control and supervisors' support.

Work—Family Conflict Within the Family

To better understand the work—family interface within the family domain, this study investigated crossover effects of two types of work—family conflict among 120 participants (60 married couples), these conflicts' relations with parental self-efficacy and perceived quality of parent—child interaction, and the contribution of attributions of importance to life roles on variance in these two parental outcomes. Results indicated complementary correlations between men's and women's conflicts. That is, work family conflict of one spouse was positively correlated to family work conflict of the other spouse. Both types of conflict were negatively correlated with parental self-efficacy and perceived quality of parent—child interaction. Parents' sense of self-efficacy in their parenting role was associated with the higher value they attributed to that role and to the dual role of working parent, and with the stronger sense of commitment to the parenting and dual roles. Theoretical and practical issues are discussed.

Construção e evidência de validade do Teste de Reação à Frustração Objetivo

Resumo O objetivo deste artigo é apresentar o processo de construção e evidências iniciais de validade do Teste de Reação à Frustração Objetivo (TRFO). Construído a partir de uma versão projetiva da mesma medida, o instrumento consta de 31 situações pictóricas, consideradas frustrantes. Cada situação possui 11 possíveis respostas, que representam diferentes possibilidades de reação à frustração. Os itens foram construídos a partir da análise de respostas livres de 112 participantes. Essas respostas foram transformadas em frases que representam cada uma das 11 possíveis reações à frustração. Para análise de evidência de validade, baseado na estrutura interna, o TRFO foi aplicado em 1.766 participantes, de diferentes estados brasileiros. Todas as reações foram correlacionadas entre si, com variações de baixas a moderadas, corroborando os achados na literatura. Os dados sugerem que o TRFO é um instrumento promissor na avaliação de reações a frustração.

Occupational coping self-efficacy explains distress and well-being in nurses beyond psychosocial job characteristics

AIM

The main purpose of the present study was to extend the Job Demand Control Support (JDCS) model analyzing the direct and interactive role of occupational coping self-efficacy (OCSE) beliefs.

BACKGROUND

OCSE refers to an individual's beliefs about their ability to cope with occupational stressors. The interplay between occupational stressors, job resources, and self-efficacy beliefs is poorly investigated. The present research attempts to address this gap.

DESIGN

Cross-sectional survey.

METHOD

Questionnaire data from 1479 nurses (65% response) were analyzed. Hierarchical regression analyses were used to test the direct and moderating role of OCSE in conjunction with job demands (i.e., time pressure), and two job resources: job control (i.e., decision latitude and skill discretion) and social support (i.e., supervisor support and coworker support) in predicting psychological distress and well-being.

RESULTS

Our findings indicated that high demands, low job control, and low social support additively predicted the distress/well-being outcomes (job satisfaction, emotional exhaustion, depersonalization, psychological distress, and somatic complaints). Beyond the main effects, no significant interactive effects of demands, control, and support were found. OCSE accounted for an additional 1-4% of the variance in the outcomes, after controlling for the JDCS variables. In addition, the results indicate that OCSE buffers the association between low job control and the distress dimensions emotional exhaustion, depersonalization, and psychological distress. Low control was detrimental only for nurses with low OCSE.

CONCLUSION

Our results suggest expanding the JDCS model incorporating individual characteristics such as OCSE beliefs, for predicting psychological distress and well-being. Limitations of the study and practical implications are discussed.

Aligning Task Control with Desire for Control: Implications for Performance

The current study examined whether matches between task control and participants' desire for control over their environment lead to better task performance than mismatches. Work control and desire for control were manipulated, and participants engaged in timed tasks. As predicted, performance was higher in cases of match, even when task control and desire for control were low. Task control and desire for control may predict work performance in combination, highlighting the importance of Person-Environment Fit theory for both selection and work design. By manipulating desire for control, our research also explores the potentially state-dependent quality of this individual difference variable.

The Impact of Personality and Culture on the Job Demands-Control Model of Job Stress

Among the various work stress models, one of the most popular has been the job demands-control (JDC) model developed by Karasek (1979 ), which postulates that work-related strain is highest under work conditions characterized by high demands and low autonomy. The absence of social support at work further increases negative outcomes. This model, however, does not apply equally to all individuals and to all cultures. This review demonstrates how various individual characteristics, especially some personality dimensions, influence the JDC model and could thus be considered buffering or moderator factors. Moreover, we review how the cultural context impacts this model as suggested by results obtained in European, American, and Asian contexts. Yet there are almost no data from Africa or South America. More crosscultural studies including populations from these continents would be valuable for a better understanding of the impact of the cultural context on the JDC model.

Job satisfaction and intentions to leave of new nurses

Turnover of newly graduated nurses is of significant concern. There are continuing reports that new graduates struggle during the transition to the work setting. The purpose of this study was to examine the effects of perceived demands, control, social support and self-efficacy on the job satisfaction and intention to leave of new nurses utilising Karasek's Job Demands-Control-Support model. A cross-sectional mailed survey was used to gather data. The sample comprised 232 new nurses working in acute care in Canada. Job demands, social support from both supervisors and coworkers and self-efficacy were significantly related to job dissatisfaction, while demands and support from coworkers were related to intention to leave the job. Identifying factors that contribute to the job satisfaction and intentions to leave of new nurses is a first step in developing interventions to assist nurses who are just beginning their careers.

Effects of acceptance-based coping on task performance and subjective stress

This paper examines the interactive effects of acceptance-based coping and job control on task performance, subjective stress, and perceived control. Forty-eight undergraduate and graduate students first participated in brief educational programs based on either acceptance or control coping strategies. They then participated in a 30-min high workload task under either high or low job control conditions. The results demonstrated a significant interactive effect of acceptance-based coping and job control on perceived control and task performance. No such effect was found for subjective stress. We conclude that to improve employees' perceived control and job performance, there should be an increase not only in job control through work redesign, but also in psychological acceptance.

The association between job strain and emotional exhaustion in a cohort of 1,028 Finnish teachers

BACKGROUND

Teachers' work overload has been the subject of intense research, and the results of these studies show that a substantial proportion of teachers perceive their job as very stressful.

AIMS

To investigate how different formulations of high demands and low decision latitude was related to teachers' burnout, and to estimate the possible interaction between these factors.

SAMPLE

The sample consisted of 1,028 school teachers.

METHOD

Multivariate covariant analyses (MANCOVA) was used to evaluate the relationship between a high-strain job defined by 3 different cut-off points and burnout. Logistical regression analysis was used to estimate the separate and joint effects of demand and decision authority on emotional exhaustion. Interaction between high demands and low decision authority was analysed using relative excess risk due to interaction (RERI). An attributable proportion (AP) was calculated in order to estimate the proportion of emotionally exhausted teachers among those exposed to both risk factors that was attributable to their synergistic interaction. The group of teachers who perceived their job as a low-strain job was used as the reference group in the analysis.

RESULTS

The effect of job strain on burnout was proved to be consistent and robust across alternative formulations. The main effect of high demands exceeded that of low decision authority in relation to emotional exhaustion. Furthermore, the 2 factors acted synergistically to increase the risk of burnout.

CONCLUSIONS

In the case of burnout, teachers who perceived their job as highly demanding and low in control, 69% of the effect could be attributed to the synergism of these 2 factors.

Do psychological factors predict occurrence of influenza-like symptoms in vaccinated elderly residents of a sheltered home?

OBJECTIVES

A previously shown relation between psychological factors and the occurrence of flu has not been tested in elderly people, who are at the greatest risk of mortality from flu complications. This study examined whether psychological factors predict the occurrence of influenza-like symptoms (ILS) in elderly residents.

DESIGN

A prospective correlation design was used.

METHOD

Our sample included 70 elderly residents of a sheltered home (mean age 83.0 years) who were vaccinated against influenza and assessed for background, biomedical factors (e.g. number of illnesses) and psychological factors (e.g. hostility, depression, life-events, and social support). The occurrence of ILS during 2 subsequent winter months was evaluated by a nurse blind to patients' psychological data, according to explicit valid criteria and physicians' notes.

RESULTS

Seventeen patients (24.3%) developed ILS. Number of medications, little physical activity, hostility, depression, and little social support significantly predicted ILS. In a multivariate analysis, only number of drugs (relative risk, RR: 1.54; 95% confidence interval, CI: 1.06-2.22) and hostility (RR = 1.18; 95% CI: 1.00-1.38) significantly and independently predicted occurrence of ILS.

CONCLUSIONS

Psychological factors (particularly hostility) predict occurrence of ILS in an elderly sample. Possible behavioural and immunological mechanisms linking hostility to development of ILS are discussed. These findings add to the literature on psychological factors and flu, and may have implications for the prediction and prevention of flu in elderly people.

Reciprocal influences of personality and job characteristics across middle adulthood

The present research uses an economically diverse, middle-aged sample to examine the concurrent and longitudinal interplay between personality and occupational experiences. Using the Five-Factor Model of personality and the Demand-Control Model of the occupational environment as guiding frameworks, participants (N=722) reported on their personality, job characteristics, and occupational history; a subset (n=297) made the same ratings approximately 10 years later. Measured concurrently, emotionally stable, extraverted, open, and conscientious participants reported jobs with greater decision-making latitude, whereas disagreeable participants had more physically demanding and dangerous jobs. Longitudinal cross-lagged analyses revealed that personality was associated with changes in decision latitude, hazardous working conditions, and physical demands. None of the job characteristics predicted change in personality at the factor level. Thus, personality shaped occupational experiences, but occupational experiences had minimal impact on personality. Support for the Five-Factor Theory perspective and implications for environmental approaches to personality development are discussed.

Occupational safety: application of the job demand-control-support model

The utility of the job demand-control-support (JDCS) model for explaining psychological and physical well-being has been documented in a variety of settings. The current study's purpose was to assess the effectiveness of the JDCS model for predicting occupational safety well-being criteria (i.e., workplace injuries) based on two studies that employed samples of union blue-collar workers from two different regions of the United States. The JDCS model's buffer hypotheses were evaluated using hierarchical linear modeling. Both studies showed significant interactions between situational constraints and safety control to predict workplace injuries such that safety control buffered the negative effects of situational constraints. No significant three-way interaction between situational constraints, safety control, and safety climate on workplace injuries was found for either study. The implications of the present findings for both the JDCS model and occupational safety research are discussed.

Self-efficacy and work-related performance: The integral role of individual differences

The present study estimated the unique contribution of self-efficacy to work-related performance controlling for personality (the Big 5 traits), intelligence or general mental ability, and job or task experience. Results, based on a meta-analysis of the relevant literatures, revealed that overall, across all studies and moderator conditions, the contribution of self-efficacy relative to purportedly more distal variables is relatively small. Within moderator categories, there were several cases in which self-efficacy made unique contributions to work-related performance. For example, self-efficacy predicted performance in jobs or tasks of low complexity but not those of medium or high complexity, and self-efficacy predicted performance for task but not job performance. Overall, results suggest that the predictive validity of self-efficacy is attenuated in the presence of individual differences, though this attenuation does depend on the context.

Control over the scheduling of simulated office work reduces the impact of workload on mental fatigue and task performance

Two experiments tested the hypothesis that task-induced mental fatigue is moderated by control over work scheduling. Participants worked for 2 hr on simulated office work, with control manipulated by a yoking procedure. Matched participants were assigned to conditions of either high control (HC) or low control (LC). HC participants decided their own task scheduling, whereas LC participants had to follow these fixed schedules. For Experiment 1, fatigue was higher in LC participants who worked harder, so Experiment 2 compared control effects in high- and low-workload groups. As predicted, the impact of workload was reduced under HC conditions, for subjective fatigue, and most secondary tasks and aftereffects. The findings are interpreted within the framework of compensatory control theory.

Extending and Applying the Demand-Control Model: The Role of Soldier's Coping on a Peacekeeping Deployment

The purpose of this study was to extend the demand-control model (R. A. Karasek, 1979) by examining coping as an additional factor. It was hypothesized that perceived job control only buffered the demand-strain relationship when individuals used active coping and exacerbated the relationship when individuals used passive coping. Soldiers (N=638) were surveyed before and during a 6-month peacekeeping deployment to Kosovo. Results partially confirmed the hypotheses. Even after controlling for general psychological health at predeployment, job control moderated the relationship between demands and psychological health during deployment when soldiers used active coping. No significant 3-way interactions were found for religious coping and passive coping. Implications for demand-control modeling and potential applications of the findings to soldier and leader training are discussed.

The Physical Health Questionnaire (PHQ): Construct Validation of a Self-Report Scale of Somatic Symptoms

The authors report the results of 3 studies that were conducted to evaluate the psychometric properties of the Physical Health Questionnaire (PHQ), a brief self-report scale of somatic symptoms. In Study 1, exploratory factor analysis results revealed 4 empirically distinct dimensions of somatic symptoms: gastrointestinal problems, headaches, sleep disturbances, and respiratory illness. In Study 2, this structure was replicated using confirmatory factor analysis, and correlations of the PHQ dimensions with measures of negative affect, psychological health, and job performance provided further validity evidence. In Study 3, a minor revision to the wording of several items helped to address the limitations of one of the PHQ subscales. Together, these results provide evidence of the construct validity of the PHQ.

Political skill: an antidote in the role overload-strain relationship

Political skill is characterized by social perceptiveness and the ability to adjust one's behavior to different and changing situational needs to influence others. The authors argue that politically skilled individuals enjoy a sense of personal security that allows them to perceive interpersonal control over the process and outcomes of interpersonal interactions within organizations. The authors examine the buffering effects of political skill on the perceived role overload-strain relationship, with strain operationalized as job tension, job (dis)satisfaction, and general anxiety. Results support the hypothesized moderating effects of political skill such that greater political skill reduces the negative effects of role overload on all types of strain. The contributions and limitations of the study are discussed, as are directions for future research.

Divergent effects of active coping on psychological distress in the context of the job demands-control-support model: the roles of job control and social support

This study examined the effects of active coping on psychological distress in the context of the job demands-control-support model. Participants were 726 male nonmanagers in a large electrical company in Japan. Hierarchical multiple regression analyses were conducted to examine whether active coping and coping resources (job control, supervisor support, and coworker support) have interaction effects on psychological distress. Active coping had an interaction effect with coworker support, whereas it did not with job control and supervisor support. Results suggest that coworker support can facilitate the effectiveness of active coping, whereas job control or supervisor support cannot.

Psychosocial work characteristics in relation to neck and upper limb symptoms

The aim of this study was to investigate the relationship between psychosocial work characteristics and neck and upper limb symptoms and to examine to what extent this relationship could be explained by other risk factors. Data were used from a prospective cohort study in a working population, with a follow-up period of 3 years. The 3-year cumulative incidence rates of neck or upper limb symptoms, neck/shoulder symptoms and elbow/wrist/hand symptoms were 32, 24 and 15%, respectively. After adjustment for potential confounders high job demands was identified as a risk factor for neck/shoulder symptoms (RR: 2.1; CI: 1.2-3.6) and elbow/wrist/hand symptoms (RR: 1.9; CI: 1.0-3.7), and low social support of co-workers was identified as a risk factor for elbow/wrist/hand symptoms (RR: 2.2; CI: 1.0-4.9). Partly, but not exclusively, these relationships were intermediated by an increased exposure to physical risk factors and increased stress symptoms. Personal characteristics did not considerably influence the main effects of the identified risk factors.

Psychological stress and the human immune system: a meta-analytic study of 30 years of inquiry

The present report meta-analyzes more than 300 empirical articles describing a relationship between psychological stress and parameters of the immune system in human participants. Acute stressors (lasting minutes) were associated with potentially adaptive upregulation of some parameters of natural immunity and downregulation of some functions of specific immunity. Brief naturalistic stressors (such as exams) tended to suppress cellular immunity while preserving humoral immunity. Chronic stressors were associated with suppression of both cellular and humoral measures. Effects of event sequences varied according to the kind of event (trauma vs. loss). Subjective reports of stress generally did not associate with immune change. In some cases, physical vulnerability as a function of age or disease also increased vulnerability to immune change during stressors.

Psychological stress and the human immune system: a meta-analytic study of 30 years of inquiry

The present report meta-analyzes more than 300 empirical articles describing a relationship between psychological stress and parameters of the immune system in human participants. Acute stressors (lasting minutes) were associated with potentially adaptive upregulation of some parameters of natural immunity and downregulation of some functions of specific immunity. Brief naturalistic stressors (such as exams) tended to suppress cellular immunity while preserving humoral immunity. Chronic stressors were associated with suppression of both cellular and humoral measures. Effects of event sequences varied according to the kind of event (trauma vs. loss). Subjective reports of stress generally did not associate with immune change. In some cases, physical vulnerability as a function of age or disease also increased vulnerability to immune change during stressors.