A euthanasia advocate says New Zealanders should be very proud of Friday's preliminary referendum results which saw victory for the End of Life Choice bill.

Matt Vickers, widower of Lecretia Seales, a prominent advocate for euthanasia while terminally ill with brain cancer in 2015, says his wife would be very proud.

At the time of her death at 42, she was paralysed and unable to speak

The Wellington lawyer took the government to court over her wish to legally end her life.

She died in 2015, a day after a High Court judge ruled against her.

Watch the interview on The AM Show »