Cancer is a disease that requires long-term management, especially now that medical advances have transformed most cancers from an acute to a chronic condition. Most of the time, therefore, the help provided by family and friends is long-term.

The negative impact of oncological care on the quality of life of family caregivers has already been studied. The UCOGB carried out a study in 2014 on the primary caregivers of cancer patients aged 70 and over at inclusion and at 3 and 6 months of oncogeriatric care. This study showed that several factors were significantly related to the caregiver's quality of life: the caregiver's age, perception of burden and patient autonomy (18). However, the evolution of quality of life and burden at 5 years has, to our knowledge, never been evaluated.

Inclusion Criteria:

• Person who does not object to being included in the study
• Primary caregiver of a cancer patient aged 70 years and over who is managed in one of the centres participating in the study, with a request for an oncogeriatric consultation between 01/06/2014 and 18/03/2015.
• Age ≥ 18 years old
• Good command of the French language

Exclusion Criteria:

• Refusal or linguistic or psychological inability to answer the questionnaires.
• Caregiver whose general condition does not allow him/her to answer a questionnaire
• Death of the caregiver.

Retrieval of information and contact details of primary caregivers included in the 2014 study along with the patient's vital status