One often sees the photos of crazy, bewildered men who are said to have suffered from shell-shock in WWI. Was shell-shock in WWI different from PTSD as it is known today, due to the specific circumstances of the war? And what happened to these men after the war? Was the mental invalidity rate 100% or more like 10%? Does one know anything about the suicide rate.
The shell-shock phenomenon is mentioned so often and yet one never hears a word about what happened after the war, so I am hoping some historian can educate the rest of us :)
Shell shock and PTSD are different names for the same phenomenon. In World War II it was known as Battle Fatigue.
You are going to have an incredibly hard time finding any details about suicide rates, even today, in military personnel suffering from traumatic stress-- they keep that information incredibly private, as it's still considered a bit taboo unfortunately, even today.
The important thing to remember is that a disorder like this is entirely unique to the individual who experiences it. It can be triggered by just about anything, and can result in incredibly varied degrees of manifestation depending on the person and the situation. There are people who went through some of the most horrific experiences and came through completely unfazed, only to be sent 'over the edge' by something relatively minor later on. for others, it's the experience itself.
But to your original question-- PTSD = Shell Shock = Battle fatigue.