Hiya Thomas!
Ive heard this topic being discussed previously in the forums. Your bound to be concered although i believe that you should never take statistics literally as half the time they are complete and utter bulls**t! After attending a KH for almost 16 years i have to say that i cannot name one person that commited suicide including other adults and children alike. However, i could name a few non-JW that have.
Hey, guess thats jut one thing that we will never know. I am a teenager atm and although not competely 100% commited to being a JW i don't see that many teenagers seem to be completetly depressed about their way of life. Although personally i have not chosen to live that way i can see how some people COULD feel isolated and lonely. This is mainly due to the fact that children are told to stay away from the 'wordly' people. To be honest i also think this is rubbish and have and will continue to have practically all of my friends from outside the KH. This way i can experience both ways of life as well as being a happy teenager.
Sorry this turned into abit of an essay, lol guess i figured this was kinda my field being a teeanger n' all.
xLaurax