Audrey Eu Yuet-mee may get a boost in today's Hong Kong Island by-election from previous supporters of conservative, non-affiliated candidates, a poll has found. The poll showed only 35 per cent of those who voted for non-affiliated Jennifer Chow Kit-bing pledged to support her for a second time, while 26 per cent said they would back Ms Eu. About 28 per cent of people who in September backed another non-affiliated candidate, Ronald Fung Leung-lo, now supported Ms Eu, while 11 per cent supported her main rival, Christopher Chung Shu-kun, of the Democratic Alliance for the Betterment of Hong Kong. Only 54 per cent of voters who supported the DAB ticket led by disgraced former Legco member Gary Cheng Kai-nam said they would back Mr Chung. But the poll showed up to 46 per cent of voters still undecided about who they will vote for, and the result is still too close to call. It showed that non-affiliated Ms Eu was leading Mr Chung by a narrow margin. Of those who had decided how to vote, 42 per cent supported Ms Eu and 40 per cent Mr Chung. Critics have said the actual support for Mr Chung may be more because of loyal support for DAB. The survey, conducted by Dr Robert Chung Ting-yiu, director of the Public Opinion Programme of the University of Hong Kong, found that 56 per cent of people who voted for the Democrats in September's election would vote for barrister Ms Eu. About 30 per cent of the former Democrat supporters said they had not yet decided who they would vote for. Most supporters of other pro-democracy forces also said they would support Ms Eu, according to the survey. About 60 per cent of former supporters of The Frontier's Cyd Ho Sau-lan said they would support Ms Eu, while 58 per cent of former Democrat Tsang Kin-shing supporters also said they would back her. In September's election, the Democrats won 92,074 votes, 35.3 per cent of the total, while the DAB gained 72,617 votes, or 27.8 per cent. Ms Chow and Mr Fung won 14,534 votes, 5.6 per cent, and 15,419 votes respectively. The poll, conducted between November 27 and December 5, interviewed 1,025 voters in the Hong Kong Island constituency. It also found the economy topped the agenda for most voters, who felt it should be the priority of the new lawmaker.