[Facilitators and barriers to shared decision-making in France in 2021: National survey in cancer]. / Leviers et freins à la prise de décision partagée en France en 2021 : enquête nationale auprès des patients atteints de cancer.

INTRODUCTION: Shared-decision making (SDM) combines clinical expertise of the healthcare professional with patient's knowledge, values and preferences. This survey explores from a patient perspective, the implementation, facilitators and barriers of SDM in oncology in France in 2021. PATIENTS AND METHODS: From August to October 2021, the digital platform Cancer contribution conducted an online survey relayed by 11 patient associations. RESULTS: Out of 916 responses, 727 were analyzed: 394 from patients with hematological malignancies [HM], 185 with breast cancer [BC], 93 with other solid tumors [ST] and 55 with multiple cancers [MC]. Among the participants, 47.2 % reported that they participated in a decision about their health management, with a significant variation according to the pathology (BC 43.8 %, HM 41.1 %, ST 57 %, MC 60 %, P=0.01), and regardless of age and gender. Two-thirds felt comfortable with the shared decision-making process, in relation with the time allocated and the information provided, regardless of the pathology. In addition, emotions, uncertainty and lack of information are the main reasons quoted by patients to explain their lack of ease in making a decision related to their health. CONCLUSIONS: In this survey, less than half of the patients declared that they have been enrolled in a SDM approach, this rate varying according to the type of solid tumor or hematological malignancy. This study shows that to improve the implementation of SDM in routine clinical practice in cancer, sufficient time and use of decision aids are needed.