47 percent of those polled want to have a second say on Brexit when the final terms of the EU deal are known | Oli Scarff/AFP via Getty Images Poll: UK voters support second Brexit vote by 16-point margin According to a poll of over 5000 people, 49 percent believe that leaving the EU will harm the British economy.

British voters back a second referendum on the eventual Brexit deal by a margin of 16 percentage points, according to an ICM poll commissioned by the Guardian.

The survey, carried out in mid-January, found that 47 percent of those polled want to have a second say on Brexit when the final terms of the EU deal are known, with 34 percent against the idea. On the question of how they would vote, the poll — which had an unusually large sample size of 5075 people — found a slim majority for Remain with 51 percent of those who expressed a view in favor of staying in the EU.

Voters in Scotland, as well as the northern and southern parts of the country would vote in favour of remaining in the EU, while voters in the Midlands and Wales would still want to leave, the survey found. Forty-nine percent across the country believed that leaving would hurt the economy, with 36 percent rejecting that proposition.

In the Brexit referendum held in June, 2016, 51.9 percent of British voters opted for leaving the EU.