The main aims of this thesis were to investigate combined and selective associations between varied sources of occupational stressors (environmental and psychosocial) and a range of health outcomes in public sector employees. Data were obtained from two cross-sectional surveys of public sector employees (n-1090 and 870). Key sources of potential stress examined were: demands, control, support, efforts, rewards, unfavourable working patterns (long hours, shift work), physical hazards (noise, harmful substances), organisational culture, role stressors (conflict, ambiguity), interpersonal relationships (Leader-Member and Team-Member Exchange) and workplace bullying. Key health outcomes comprised work-related stress, clinical anxiety and depression, lifetime, 12-month and acute symptom prevalence and use of prescribed medication within the last 12 months and 14 days. Analyses were carried out using logistic regression. Results indicate that stressors explain more variance in health outcomes when studied in combination. Cumulative exposure to stressors was measured by a composite additive score derived from traditional job stress models (Demand-Control-Support, Effort-Reward Imbalance) and items assessing working hours/physical hazards, and was associated with an increased likelihood of reporting the majority of key health outcomes. The addition of novel stressors to the composite score (e.g. role, interpersonal relationships, culture) did not explain additional variance with the exception of workplace bullying. For some outcomes (work-related stress) associations with stressors were linear; for others (clinical depression), only very high levels of exposure were associated with a negative outcome (i.e. a ‘threshold’ effect). These different patterns of effect are suggestive of selective, as well as cumulative relationships: certain health outcomes are associated with particular risk factors.
We have developed the following database of research theses on bullying from all academic institutions in the UK and Ireland. The aim of this database is to assist those who are interested in the field of bullying and want to see what research has already been done. We have attempted to ensure that we have included all relevant theses here; but if there is an omission please let us know by emailing geraldine.kiernan@dcu.ie.
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