HRQoL was assessed (2007–2009) at enrollment by using the French version of the Medical Outcome Study Short Form 36 (SF-36)  and the French version of the Duke Health Profile (Duke) . For each questionnaire, two main dimensions were retained: the physical component (SF-36: physical component summary [PCS]; Duke: Phys) and the mental component (SF-36: mental component summary; Duke: Ment). The scores were linearized from 0 to 100 to compare scores between the questionnaires: (0: worst HRQoL, 100: best HRQoL).