Progredienzangst bei Brustkrebspatientinnen - Validierung der Kurzform des Progredienzangstfragebogens PA-F-KF/ Fear of progression in breast cancer patients – validation of the short form of the Fear of Progression Questionnaire (FoP-Q-SF)

Objectives: Fear of progression is one of the most prevalent symptoms in cancer patients. The aim of this study was to validate the 12-item short version of the Fear of Progression Questionnaire (FoP-Q-SF). Methods: A total of 1083 breast cancer patients were recruited by the Hamburg Cancer Register to fill out various questionnaires (response rate 67 %). Results: Estimates of reliability were high (Cronbach's α = .87). The original one-factor structure was replicated. We used the HADS, the PCL-C, and the SF-8, among others, to validate the FoP-Q-SF. Significant positive correlations were found for fear of progression, anxiety and intrusion (r.60) as well as for avoidance, hyperarousal and depression (r ≥ .49). Moderate to high (negative) correlations were observed with health-related quality of life, in particular with the mental health dimensions (r ≥ .48). Patients with cancer recurrence reported significant higher levels of fear of progression (p.001). Conclusions: The short form of the Fear of Progression Questionnaire appears to be a reliable and valid instrument which can be recommended for further use in research and clinical care.