The following is a summary of a survey on public opinion about food carried out in the US by the Pew research survey. quite interesting.

GM foods

-          A minority of adults (37%) say that eating GM foods is generally safe,

-          57% say they believe it is unsafe. And, most are skeptical about the scientific understanding of the effects of genetically modified organisms (GMOs) on health.

-          (67%) of adults say scientists do not clearly understand the health effects of GM crops

-          28% say scientists have a clear understanding of this

-          About half of U.S. adults report that they always (25%) or sometimes (25%) look to see if products are genetically modified when they are food shopping. 

-          31% say they never look for such labels

-           17% say they do not often look

Gender, age, race and ethnicity

-          Fewer women (28%) than men (47%) believe eating GM foods is safe.

-          Fewer blacks (24%) and Hispanics (32%) than whites (41%) saying that GM foods are safe to eat.

-          Views about GMOs are roughly the same among both younger (ages 18 to 49) and older (50 and older) adults.

reference 

http://www.pewinternet.org/2015/07/01/chapter-6-public-opinion-about-food/