Here is a LINK from Australian and US Research on suicide by ex Military Persons.
An interesting article however, none of its points affect former NZDF personnel!
Why you may ask? and that is because the article follows the accepted international definition of a veteran. That is someone who served whether in operations or not.
However the NZDF and Veterans Affairs do not adhere to that definition. Must be missing something here when we are so far out of step with our Allies and Friends