Modelling the stress-fatigue relationship using various psychological and health related factors

Dataset: The dataset contains various measures to model predictors of fatigue including potential mediators and moderators of the stress-fatigue relationship. Factors included include: students' life events, perceived stress, trait anxiety, state anxiety, depression, lack of sleep quality, social support. illness, infection, non-clinical, psychological distress, and gastrointestinal symptoms.
Participants: Non-clinical university students, 97 females and 40 males, aged 18-63 years.
From published abstract:
Results: Fatigue severity was predicted (48% of the variance) by high perceived stress and state-anxiety, poor sleep quality and general illness symptoms. Poor sleep quality and gastrointestinal (GIT) symptoms partly mediated between stress and fatigue, and poor sleep quality partly mediated between psychological distress and fatigue. Social support quality moderated the stress – fatigue relationship.
Conclusions: Stress and psychological distress may contribute to fatigue in healthy adults by first impairing sleep quality and/or increasing vulnerability to infection, which may then directly induce fatigue symptoms