Diagnostic Primary Any
category diagnosis diagnosis
Psychological 45% 77%
Dermatological 6 53
Digestive system 4 53
Musculoskeletal 16 49
Nervous system 6 41
Ear, nose, and throat 4 28
Ophthalmology 2 20
Respiratory 2 14
Ill-defined 2 8
Genitourinary 2 8
SOURCE: K.C. Scott, Head of Medical Services, Canadian Forces, presentation at VA National Conference: Current Concepts of Persian Gulf Veterans Illnesses, Long Beach, CA, August 1996.