Explaining the long-term impact of chronic Q fever and Q fever fatigue syndrome on psychosocial functioning: A comparison with diabetes and the general population

Reukers, Daphne F.M. [Radboudumc] van Jaarsveld, Cornelia H.M. [Radboudumc] Knoop, Hans [Radboudumc] Bleeker-Rovers, Chantal P. [Radboudumc] Akkermans, Reinier [Radboudumc] de Grauw, Wim [Radboudumc] van der Velden, Koos [Radboudumc] van Loenhout, Joris [UCL] Hautvast, Jeannine L.A. [Radboudumc] et al.[show all]

OBJECTIVE: After Q fever infection, 1-5% of patients develop chronic Q fever, while about 20% develops Q fever fatigue syndrome (QFS). This study examines whether these two conditions have a long-term impact on psychosocial functioning compared to the general population and patients with type 2 diabetes (DM) and investigate which mediating factors influence outcomes. METHODS: Cross-sectional study was performed, measuring psychosocial functioning including quality of life (depression and satisfaction with life), anxiety, social functioning and relationship satisfaction in patients with proven or probable chronic Q fever or QFS, 5-9 years after acute Q fever infection. Multivariate linear regression was used to analyse differences between groups, correct for confounders and identify relevant mediators (fatigue, physical or cognitive functioning, illness perception). RESULTS: Quality of life and social functioning of chronic Q-fever and QFS patients was significantly lower and anxiety significantly higher compared to DM patients and the general population. The impact was completely mediated by fatigue in both Q fever groups. Physical and cognitive functioning and illness perception partially mediated the impact. CONCLUSIONS: Health care workers need to be aware of the long-term impact of chronic Q fever and QFS on psychosocial functioning of patients in order to provide proper guidance.