Dataset in support of the thesis: Understanding anxiety: the role of psychological flexibility, intolerance of uncertainty and death anxiety as transdiagnostic mechanisms

Data supports: Da Cruz Figueiredo (2025). Understanding Anxiety: The Role of Psychological Flexibility, Intolerance of Uncertainty and Death Anxiety as Transdiagnostic Mechanisms

Specifically chapter 3 of the thesis: A Mixed-Methods Cross-Sectional Study of Health Anxiety across Healthcare Professionals

Ethical approval obtained from the University of Southampton Research Ethics Committee (ref. 91081.A1)

The dataset includes responses from healthcare professionals working across NHS, charity, and private sectors, collected using the following questionnaires:

• Short Health Anxiety Inventory, 18 items (SHAI-18; Salkovskis et al., 2002)
• The Hospital Anxiety and Depression Scale (HADS; Zigmond & Snaith, 1983)
• Carleton et al.’s (2007) Intolerance of Uncertainty Scale, 12 item (IUS-12)
• The Psy-Flex (Gloster et al., 2021)
• Templer Death Anxiety Scale (DAS; 1970)

Two qualitative questions developed by researcher:

(1) due to working in this setting, have you made lifestyle changes (i.e. eating and drinking, physical safety, exercising, stress management, health monitoring, social) that you did not do before

(2) is there anything else that you feel is important about your experience in working in this setting?