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- Conway, Paul Maurice, et al.
(author)
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Optimal Cut-Off Points for the Short-Negative Act Questionnaire and Their Association with Depressive Symptoms and Diagnosis of Depression
- 2018
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In: Annals of Work Exposures and Health. - : Oxford University Press (OUP). - 2398-7308 .- 2398-7316. ; 62:3, s. 281-294
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Journal article (peer-reviewed)abstract
- Objectives: The behavioural experience method has been extensively used in the literature for the measurement of potential bullying behaviours at work. However, this approach presents limitations when used to classify respondents as targets or non-targets of workplace bullying. Therefore, the present study aimed to: (i) identify optimal cut-off points, reflecting a possible subjectively experienced exposure to occasional and frequent workplace bullying, for the 9-item Short Negative Act Questionnaire (S-NAQ), and (ii) examine the criterion validity of these cut-off points in relation to depressive symptoms and diagnosis of depression.Methods: The study was based on a sample of 4882 participants from the Danish MODENA cohort study (year 2011), which included both the S-NAQ (score range 9-45) and a one-item measure applying the self-labelling method with a definition to assess occasional and frequent workplace bullying. We employed receiver operating characteristic (ROC) curve analyses to derive the cut-off points for the S-NAQ. Based on these cut-off points, we created a new S-NAQ variable with three levels of exposure (i.e. 'not exposed', 'first threshold', and 'second threshold') and tested its criterion validity in relation to depressive symptoms (N = 4071) and diagnosis of depression (N = 4844).Results: The S-NAQ cut-off points obtained were ≥12 and ≥16 when using occasional and frequent bullying as reference standards, respectively. Both cut-off points showed high classification accuracy (area under the curve = 0.89 and 0.93) as well as good sensitivity (84.8% and 88.0%) and specificity (77.4% and 94.7%). In the adjusted linear regression analyses, both the first (B = 0.78, 95% confidence interval [CI] = 0.66-0.90) and the second threshold of exposure (B = 1.65, 95% CI = 1.44-1.86) were significantly associated with depressive symptoms. In the adjusted logistic regression analyses, both the first (odds ratio [OR] = 3.55, 95% CI = 1.98-6.38) and the second threshold of exposure (OR = 5.90, 95% CI = 2.93-11.88) were significantly associated with diagnosis of depression.Conclusions: The two cut-off points for the S-NAQ identified in this study showed a significant association with both depressive symptoms and diagnosis of depression. However, future prospective studies are needed to establish the predictive validity of the proposed cut-off points.
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- Conway, Paul Maurice, et al.
(author)
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Workplace bullying and risk of suicide and suicide attempts : A register-based prospective cohort study of 98 330 participants in Denmark
- 2022
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In: Scandinavian Journal of Work, Environment and Health. - : Scandinavian Journal of Work, Environment and Health. - 0355-3140 .- 1795-990X. ; 48:6, s. 425-434
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Journal article (peer-reviewed)abstract
- Objectives: The aim of this study was to analyze whether individuals reporting exposure to workplace bullying had a higher risk of suicidal behavior, including both suicide attempt and death by suicide, than those not reporting such exposure. Methods: Using a prospective cohort study design, we linked data from nine Danish questionnaire-based surveys (2004–2014) to national registers up to 31 December 2016. Exposure to workplace bullying was measured by a single item. Suicide attempts were identified in hospital registers and death by suicide in the Cause of Death Reg-ister. Among participants with no previous suicide attempts, we estimated hazard ratios (HR) and 95% confidence intervals (CI), adjusting for sex, age, marital status, socioeconomic status, and history of psychiatric morbidity. Results: The sample consisted of 98 330 participants (713 798 person-years), 63.6% were women, and the mean age was 44.5 years. Of these participants, 10 259 (10.4%) reported workplace bullying. During a mean follow-up of 7.3 years, we observed 184 cases of suicidal behavior, including 145 suicide attempts, 35 deaths by suicide and 4 cases that died by suicide after surviving a suicide attempt. The fully-adjusted HR for the association between workplace bullying and suicidal behavior was 1.65 (95% CI 1.06–2.58). The HR for suicide attempts and death by suicide were 1.65 (1.09–2.50) and 2.08 (0.82–5.27), respectively. Analyses stratified by sex showed a sta-tistically significant association between workplace bullying and suicidal behavior among men but not women. Conclusions: The results suggest that exposure to workplace bullying is associated with an elevated risk of suicidal behavior among men.
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- Hansen, Åse Marie, et al.
(author)
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A cohort study on self-reported role stressors at work and poor sleep - does sense of coherence moderate or mediate the associations? : does sense of coherence moderate or mediate the associations?
- 2018
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In: International Archives of Occupational and Environmental Health. - : Springer Science and Business Media LLC. - 1432-1246 .- 0340-0131. ; 91:4, s. 445-456
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Journal article (peer-reviewed)abstract
- AIM: The aim of the present study was to examine the bidirectional associations between subjective role ambiguity and role conflicts at work, respectively, and self-reported sleep 2 years later. In addition, we also examine whether sense of coherence (SOC) moderate or mediate the association between role stressors and poor sleep and between poor sleep and role stressors.METHODS: We used questionnaire data collected in 2006 and 2008 from the Workplace Bullying and Harassment cohort. In 2006, 3363 responded to the questionnaire and in 2008 1671 responded. In total, 1569 participants responded in both 2006 and 2008 to the questions on role stressors (in terms of role ambiguity and role conflicts at work) and sleep problems in both 2006 and 2008. Sleep problems were assessed with the awakening index (AWI) and the disturbed sleep index (DSI). Moderation and mediation analyses of the association were estimated using structural equation modelling.RESULTS: We found a prospective association between role stressors and sleep problems [beta values were 0.07 (95% CI 0.03-0.11) and 0.05 (CI 0.01-0.10) for DSI and AWI, respectively] when adjusting for sleep problems at baseline, age, sex, and life style factors (i.e. alcohol, smoking, and leisure time physical activity). SOC moderated the association showing that participants with lower SOC scores who reported higher role ambiguity reported sleep problems to a higher extent than participants with high SOC scores. SOC also mediated the association between role stressors and sleep problems. We also found support for sleep problems at baseline and role stressors 2 years later [DSI 0.04 (CI 0.00-0.08) and 0.15 (CI 0.09-0.21)] for role ambiguity and role conflicts, respectively. Similar results were observed for AWI.CONCLUSION: Subjective role stressors were prospectively associated with sleep problems. Yet, sleep problems could also prospectively predict subjective role stressors (i.e. reverse causation). The analyses also showed that SOC may be regarded as both a mediating and a moderating factor of the association between subjective role conflicts and poor sleep. We found that SOC moderated the prospective association so participants with low SOC report more sleep problems with subjective role conflicts compared to participants with high SOC. Finally, we also found SOC mediated the prospective association between subjective role stressors and sleep problems and the reverse association.
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- Hansen, Åse Marie, et al.
(author)
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Do work units where bullying is present have more long-term sickness absence?
- 2017
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Conference paper (peer-reviewed)abstract
- Do work units where bulling is present have more long-term sickness absence?Å. M. Hansen 1 2,*, M. B. Grynderup 1, K. Nabe-Nielsen, P. M. Conway 3, J. P. Bonde 4, A. H. Garde 1 2, L. Kaerlev 5 6, E. G. Mikkelsen 7, R. Persson 8, R. Rugulies 2, A. Høgh 31Deparment of Public Health, University of Copenhagen, 2National Research Centre for the Working Environment, 3Department of Psychology, University of Copenhagen, 4Department of Occupational and Environmental Medicine, Frederiksberg and Bispebjerg Hospital, Copenhagen, 5Research Unit of Clinical Epidemiology, Institute of Clinical Research, University of Southern Denmark, 6Center for Clinical Epidemiology, Odense University Hospital, Odense, 7CRECEA A/S, Arrhus, Denmark, 8Department of Psychology, Lund University, Sweden, Lund, Sweden
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- Hogh, Annie, et al.
(author)
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Conflict frequency as predictor of negative acts and being a target or perpetrator of bullying two years later.
- 2017
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Conference paper (peer-reviewed)abstract
- Main Abstract Content: Purpose To investigate the association between conflict frequency and bullying at T1 and T2, moderation of individual conflict management styles and mediation of negative acts. Methodology Data from the Workplace Bullying and Harassment cohort (2006-2008) were analysed cross-sectionally (n=3363) and longitudinally (n=1664). Measures: conflict frequency; three individual conflict management styles (Active-Constructive, Active-Destructive and Passive-Avoiding); the Negative Acts Questionnaire; being a target or perpetrator of bullying. All analyses were adjusted for gender, age, workplace fairness and supervisor’s conflict solving abilities. Results Cross-sectional findings: Higher conflict frequency was significantly associated with more negative acts and a higher risk of being a target or perpetrator. Among those higher in Passive-Avoidant conflict management style, there was a stronger association of conflict frequency with both negative acts and being a target or perpetrator. Longitudinal findings: Higher conflict frequency (T1) was associated with more negative acts (β=0.23, p<.001) and higher risk of being a target (β=0.13, p<.001) or perpetrator (β=0.11, p<.001) (T2). Passive-Avoidant conflict management style enhanced the association between conflicts and being a target of bullying (β=0.18, p<.01). The association between conflicts (T1) and being target or perpetrator (T2) was mediated by negative acts (T1). Limitations The associations were significant only in the cross-sectional analyses and in longitudinal analyses not adjusted for baseline levels of the outcome: Inferences about causality should be cautious. Practical implications Implementation of conflict management strategies should focus on the Active-Constructive style. Value: This is the first study testing 2-year associations between conflicts and bullying with negative acts as a mediator.
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