Construct validation and normative data for different versions of the Shirom-Melamed burnout questionnaire/measure in a Swedish population sample

Psychometric validity of the Shirom-Melamed Burnout Measure and the Burnout Assessment Tool: a systematic review

In the absence of internationally recognised standardised criteria, several patient-reported outcome measures (PROMs) have been developed to measure occupational burnout. The aim of this study was to extend our 2021 review of the psychometric validity of five PROMs to the Shirom-Melamed Burnout Measure (SMBM) and the Burnout Assessment Tool (BAT). To do that we ran a systematic literature search in the MEDLINE, PsycINFO, and Embase databases following our previous methodological framework and the COnsensus-based Standards for the selection of health Measurement Instruments (COSMIN). We assessed the level of evidence using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) guideline. We identified 694 publications on SMBM and 421 on BAT, but the final review includes eight papers on SMBM and three on BAT. Of the seven psychometric properties assessed for SMBM, content, structural, and criterion validity were rated as insufficient, whereas the quality of evidence for construct and internal consistency was high and moderate, respectively. Of the nine psychometric properties assessed for BAT, content, structural, criterion, and construct validity was moderate and internal consistency was high. One limitation of this study is that we did not assess cross-cultural validity, because the number of studies reviewed is too small and content validity can only be assessed based on the original PROM version rather than translation. To conclude, BAT is superior to SMBM in terms of psychometric validity, but the quality of evidence for some properties is low or very low, suggesting a need for additional validation studies.

Lateral prefrontal cortex thickness is associated with stress but not cognitive fatigue in exhaustion disorder

Introduction

Impaired executive functioning, including cognitive fatigue, is a core feature of the long-term stress-related condition exhaustion disorder (ED). Recent research suggests that a key area for executive control, the lateral prefrontal cortex (LPFC), may be mechanistically linked to cognitive fatigue due to stress. Here, we therefore asked if and how stress, the LPFC and cognitive fatigue may be related in ED.

Methods

We used a multimodal cross-sectional study design with high-resolution structural magnetic resonance imaging (MRI), self-reported measures, and path analysis modeling in 300 participants with ED.

Results

We found positive associations between stress and cognitive fatigue, and stress and LPFC thickness,but no association between LPFC thickness and cognitive fatigue. Furthermore, LPFC thickness did not mediate or moderate the association between stress and cognitive fatigue.

Discussion

These findings suggest that LPFC brain morphology is related to perceived stress levels but not cognitive fatigue, expanding previous research on the role of the LPFC in executive functioning. Moreover, the results support the notion that the LPFC may be mechanistically involved in stress-related executive function impairment but prompt further research into if and how this may be related to cognitive symptoms in ED.

Somatic symptoms in burnout in a general adult population

OBJECTIVE

Burnout results in individual suffering and high societal costs, and is associated with somatic symptoms, anxiety and depression, calling for prevention by early identification. The objectives were to (i) determine prevalence of specific somatic symptoms in burnout, (ii) identify the symptoms, referred to as somatic symptoms of burnout (SS-B), that are particularly associated with burnout, (iii) determine their extent of association with burnout, and (iv) determine how well a certain number of SS-B differentiates participants with and without burnout in a general Swedish adult population.

METHODS

Cross-sectional, population-based data were used from 687 participants high on burnout, and 2544 referents based on the Shirom-Melamed Burnout Questionnaire. The Patient Health Questionnaire 15-item Somatic Symptom Severity Scale was used to assess common somatization symptoms, and the Hospital Anxiety and Depression Scale to assess anxiety and depression.

RESULTS

Feeling tired/having low energy, back pain, joint/limb pain, trouble sleeping, headaches, stomach pain, nausea/gas/indigestion, and constipation/loose bowels/diarrhea were most prevalent in burnout (57.2-95.0%). These symptoms, except for joint/limb pain, and dizziness, were also identified as the SS-B, with odds ratios of 2.34-12.74 and 1.95-9.11 when adjusted for background variables, and for anxiety and depression, respectively. Corresponding odds ratios for each additional number of SS-B were 1.69 and 1.52, respectively. The highest balanced accuracy (71.6%) for predicting burnout was found for ≥4 SS-B.

CONCLUSION

Fatigue, pain and gastrointestinal symptoms are particularly common in burnout. Further studies may show whether clinicians should consider screening for burnout when patients present with SS-B without pathophysiological explanations.