More than half of doctors involved in end-of-life care say they would choose voluntary assisted dying if they had cancer and were told they had two weeks left to live, an international survey suggests.

Researchers questioned 1157 doctors — including GPs and palliative care specialists — from eight jurisdictions around the world where voluntary assisted dying (VAD) is now legal.

Among them were 226 Australian doctors based in Queensland and Victoria.

The idea was to sample only those medical practitioners highly likely to be involved in end-of-life care and look at the interventions they themselves would and would not accept.