How much more likely are teens to commit suicide if they are under stress?

In some countries teen suicide is higher because of the stress put on them by family and school, for example South Korea's teen suicide rate is pretty high due to the competitive aspects of school and the value of family. Students in South Korea study more than the students of the US and this causes pressure to be the best especially when everyone else wants to be the best. Family is also very important and if they can't handle the pressure their parents are giving them to do good in school and worrying about failing or ruining the family image, this leads many South Korean students to suicide.