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VALIOC - Adaptation et validation en français du questionnaire Impact Of Cancer (IOCv2)
The Impact of Cancer version 2 (IOCv2) is a 37-item questionnaire that measures the impact of the disease on quality of life and identifies positive or negative changes that long-term survivors attribute to their cancer experience. The validation of the French version of IOCv2 represents an opportunity to gain a cross-cultural understanding of feelings associated with the experience of cancer in the post-treatment phase. After a forward-backward process of translation of the IOCv2 into French, the questionnaire was administered to 243 French breast cancer patients along with the MOS SF-12, the PostTraumatic Growth Inventory (PTGI) and the Fear of Cancer Recurrence Inventory (FCRI). Confirmatory factor analysis (CFA) was performed on the original IOCv2 8-factor solution. Convergent and divergent validities were evaluated by examining the item-rest score and item-score correlations. Concurrent validity was evaluated by correlating the IOCv2 scores with SF-12, PTGI and FCRI scores. Internal consistency was assessed using the Cronbach's alpha coefficient. The ability of each scale to discriminate among individuals and scalability were evaluated with the Ferguson's δ statistic and Loevinger's H scalability coefficients respectively. The good fit of the CFA suggests that the French version supports the 8-factor structure of the original version with four positive impact domains and four negative impact domains. The high values of psychometric indices indicate reliability and the correlation coefficient values suggest validity of the French version. Patterns of association between IOCv2 scores with SF-12, PTGI and FCRI scores indicate good concurrent validity. The French version of the IOCv2 has shown good psychometric properties and therefore it can be used as a validated tool for future studies assessing psychosocial interventions among breast cancer survivors.
Investigateur(s) et membre(s) de l'équipe impliqué(s) dans ce projet
Financement du projet
Blanchin M. , Dauchy S. , Cano A. , Brédart A. , Hardouin J.B. « Je ne suis pas un survivant » : validation française de l'échelle de qualité de vie de l’apres cancer "Impact of Cancer Scale v2". 2e congrès de la Société Française du Cancer, 22-24 juin 2015, Paris, 2015. Blanchin M. , Dauchy S. , Cano A. , Brédart A. , Aaronson N. , Hardouin J.B. Validation of the French translation-adaptation of the Impact of Cancer version 2 (IOCv2) questionnaire on a breast cancer survivors population. 21th annual conference of ISOQOL, 15-18 october 2014, Berlin, Germany, Quality of life research 2014, 23: 165-166, 2014.
Début : Novembre 2011
Fin : Décembre 2013