"While many participants were very resilient and responded positively, some participants binge drank to manage this stress."
The study contained important lessons which could inform national guidelines for alcohol addiction prevention and treatment in sexual minorities, he said.
It said more attention needed to be paid to reducing social stigma towards young people attracted to more than one gender.
This included increasing opportunities for bisexuals to meet and organise in groups, running "broad anti-stigma" campaigns and passing social policies that ensured equal rights for sexual minorities
"One example is the marriage equality legislation, currently before parliament," he said.
Otago University Students' Association queer support co-ordinator Neill Ballantyne agreed young bisexuals often felt more isolated than other sexual minorities.
"Often young people who are attracted to more than one gender can find themselves living in a space between two worlds," he said.
However, in his experience he had not found that young bisexuals were any more likely to face issues with binge drinking than those in the lesbian and gay communities.
"I believe that excessive alcohol consumption is a much larger issue for our whole society to grapple with and I think it can sometimes do more harm than good to identify specific demographics which are seen as drinking more," he said.