Workplace stress is high among healthcare professionals (HCPs) and is associated with reduced psychological health, quality of care and patient satisfaction. This systematic review and meta-analysis reviews evidence on the effectiveness of mindfulness-based interventions (MBIs) for reducing stress in HCPs. A systematic literature search was conducted. Papers were screened for suitability using inclusion criteria and nine papers were subjected to review and quality assessment. Seven papers, for which full statistical findings could be obtained, were also subjected to meta-analysis. Results of the meta-analysis suggest that MBIs have the potential to significantly improve stress among HCPs; however, there was evidence of a file drawer problem. The quality of the studies was high in relation to the clarity of aims, data collection and analysis, but weaker in terms of sample size and the use of theoretical frameworks. MBIs have the potential to reduce stress among HCPs; however, more high-quality research is needed before this finding can be confirmed. Future studies would benefit from long-term follow-up measures to determine any continuing effects of mindfulness training on stress outcomes. Copyright © 2016 John Wiley & Sons, Ltd.

The adult Humor Styles Questionnaire (HSQ) assumes that humor can be both adaptive ("self-enhancing" and "affiliative") and maladaptive ("aggressive" and "self-defeating"). The aim of the research was to develop a reliable and valid scale to assess adaptive and maladaptive humor in children -an adaptation of the adult HSQ. Over two studies, 1187 UK school children aged 9-15 years completed the 24-item adapted child HSQ. In the second study the children completed the questionnaire on two occasions, one week apart, and also measures of psychosocial adjustment. For children aged 11 years and upwards there was a clear four factor structure to the questionnaire with all sub-scales showing acceptable levels of internal and test re-test reliability. As predicted, affiliative humor and self-defeating humor were associated with all four measures of psychosocial adjustment. Aggressive humor was associated with lower anxiety and higher selfperceived social competence for boys, and with lower global self-worth and higher depression for girls. Longitudinal research is needed to disentangle the causal pathways and examine further the links between children's humor styles and their social competence.

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