The aim of this study is to identify if an avalanche accident has a psychological impact on avalanche victims. The investigators hypothesize that being exposed to an avalanche could generate enough stress to develop posttraumatic stress symptoms or even more, an authentic posttraumatic stress disorder (PTSD). Additionally, the investigators think that such symptoms might lead to physical and psychological distress in daily life. Lastly, the investigators suppose that a serious traumatism, a complete and/or prolonged burial, the death of a family member or a closed friend could be a potential risk factors to develop PTSD symptoms in avalanche victims. To evaluate post traumatic stress symptoms and the quality of life of avalanche survivors, the investigators use the Impact of Event Scale - Revised and the Short Form 12. These two scales are included in a standardized questionnaire, which is submitted to avalanche victims during a phone call.
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Prospective evaluation of the prevalence of Posttraumatic Stress Disorder of the avalanche survivors included in the RENAAV from December 2014 to May 2018.
Timeframe: Data will be gathered by phone from May to June 2019, all interviews will be conducted in the same place by the same person. Subjects will be randomly contacted.