The study found that 41% identifying as gay (either males or females) are smoking. Among bisexuals the percentage is just a little bit lower – 39%. 32 percent of youths unsure about their sexual orientation said they smoked, compared to 30 percent of straight teenagers. As for gender factor, the difference is more noticeable comparing the results of female respondents – among straight girls there are twice less smokers than among bi or lesbian ones, although among boys gay and bisexual respondents are also moore likely to smoke, but the gap is not so big. The study’s lead author Dr Jongying Dai of the Children’s Mercy Hospital and the University of Missouri says: “Gender does matter in tobacco use among sexual minority youth.” Dr Dai says that the study sheds new light on why LGB teens could be more likely to smoke than straight counterparts. 14,703 adolescents in high schools in 2015 took part in the survey. It used a nationally representative survey data with 6 percent of respondents were bisexual, 23 percent said they identified as gay or lesbian and 3 percent said they were unsure about their sexual orientation. It looked at the use of cigars, snuff and chewing tobacco as well as cigarettes and e-cigs.