American air losses.

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While spinning off from the thread concerning RFC training losses I find I have questions of my own regarding the losses of American aviators during the war.
From the book Hostile Skies (James J. Hudson) total losses are given as 569 battle causualties. 164 KIA, 102 captured, 103 wounded, and 200 MIA. Is this accurate? Or does the total MIA include some or all of those captured?
To continue, 319 is given as the number killed in accidents and 335 died of "other causes". How many of the accidental fatalities were training related? Is it safe to assume that the lion's share of deaths attributed to "other causes" were the result of "Spanish Flu"?
I doubt these statistics include American aviators in French or UK service although I truthfully don't know. I am also unsure as to whether it includes mechanics , riggers and other enlisted types other than aviators. Or for that matter does it include USN and/or USMC aviation?
Can anyone cast a little light on even some of this?
Thanks

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To whom:
From the book "The Great War in the Air" by John H. Morrow which in turn used the source "Aviation Medicine in the AEF" by a Lieut. Col. Rowntree, Medical Reserve Corp. Six hundred eighty-one flight personell (pilots, observers, gunners) were killed during the war while serving in the USAS. Of this 508 were caused by flight accidents. Two hundred sixty three caused during training accidents in the U.S., 203 while training in Europe and 42 by flight accidents while serving at the front.One hundred sixty-nine were KIA and 4 died of disease.
In addition 127 were WIA, 25 injured in accidents (at the front), 137 were POW's, 72 were MIA and three interned at the front.
Of those who reached the front for every 100 flight personell 24 were killed. Of every 100 pilots 33 were killed. Of every 100 observers 4 were killed. The highest loss rate was of prusuit pilots, followed by night bombing, then day bombing and finally observation.
The figures do not include USAS ground personell, or (apparently) any USN or USMC flight personell.
To me,the most striking part of all this is that of the 681 total deaths 466 were killed in training accidents.