Harvard School of Public Health (HSPH) researchers found that the most feminine teenage girls use tanning beds more frequently and are more likely to be physically inactive.
Similarly, the most masculine teenage boys are more likely to use chewing tobacco and to smoke cigars.
The study, found online in the Journal of Adolescent Health is the first to look at cancer risk behaviors in teens based on their gender expression.
“Our findings indicate that socially constructed ideas of masculinity and femininity heavily influence teens’ behaviors and put them at increased risk for cancer.
“Though there is nothing inherently masculine about chewing tobacco, or inherently feminine about using a tanning booth, these industries have convinced some teens that these behaviors are a way to express their masculinity or femininity,” said lead author Andrea Roberts, Ph.D., a research associate.
Tobacco use, indoor tanning, and physical inactivity — all risk factors for cancer — are highly prevalent among young people in America.
It’s known that risk behavior differs according to gender: Boys are more likely to chew tobacco and smoke cigars, while girls are more likely to use tanning beds and be physically inactive.
The researchers analyzed data from 9,435 adolescents (6,010 females and 3,425 males) participating in the ongoing Growing Up Today Study (GUTS), which began enrolling participants from ages nine to 14 in 1996.
Participants who responded to questions about gender expression — how much girls described themselves as “feminine” or boys as “masculine” — and cancer risk behaviors were included in the study.
The results showed that boys who described themselves as very masculine, in terms of their self-image and play preferences in childhood, were almost 80 percent more likely to use chewing tobacco and 55 percent more likely to smoke cigars than boys who described themselves as the least masculine.
The most feminine girls were 32 percent more likely to use tanning beds and 16 percent more likely to be physically inactive than the least feminine girls.
In contrast, the least masculine boys and least feminine girls were more likely to smoke cigarettes.
The researchers speculate that these young people may be smoking in response to social stressors, perhaps due to social exclusion or harassment related to their gender nonconformity or perceived sexual orientation.
The study also found that activities such as reading magazines or watching television and movies played a role in promoting certain cancer risk behaviors.
For instance, among girls, media engagement accounted for one-third to one-half of the higher likelihood of using tanning beds.
“Engaging in risk behaviors in adolescence likely increases the risk of engaging in similar behaviors in adulthood,” said senior author S. Bryn Austin, Ph.D.
“So it is important to focus on prevention during the teen years, challenging notions such as ‘tanning makes one beautiful’ or ‘cigar smoking and chewing tobacco is rugged or manly.’”
Source: Harvard School of Public Health