Hypnosis and self-hypnosis, administered and taught by nurses, for the reduction of chronic pain: a controlled clinical trial

INTERVENTION: Hypnosis and auto‐hypnosis administered and taught by trained nurses CONDITION: Various conditions engendering chronic pain ; Signs and Symptoms ; Pain PRIMARY OUTCOME: Level of pain (VAS) SECONDARY OUTCOME: 1. Physical activity (tridimensional accelerometer); 2. Health related quality of life (SF‐36) INCLUSION CRITERIA: 1. To be referred (including occasional self‐referral) for the management of chronic pain 2. To live within manageable distances from the hospital 3. To be aged 18 or above 4. To understand and speak French adequately 5. To be able to see, hear and communicate (i.e. no alteration of consciousness) 6. To have no diagnosis of mental illness (e.g. psychosis) 7. To give informed consent