One of the leading causes of death amongst teenagers is suicide.
The Centers for Disease control report that it is the third leading cause of death, behind accidents and homicide, of people aged 15 to 24.
This is doubly true when you are trying to research a group that is in any way marginalized, as teens are.
These two groups were also compared to young people who reported receiving no formal sex education.
Those teens are usually understood to be "at risk" and therefore we tend to ask them different questions about sex.
So it isn't just what data we have, it's how we collect it.
In some cases, teenagers believe that suicide is the only way to solve their problems.
The pressures of life seem too much to cope with, and some teenager look at suicide as a welcome escape.