Vietnam era veterans who were originally part of a sample of 300, were
surveyed in 1982 and again in 1989. There were significant increases
in symptom scores in 5 of 20 questions for the combat veteran subgroup
from 1982 to 1989. The avoidance group of symptoms had the highest sc
ores in 1989. Combat veterans continued to be more symptomatic than th
eir non-combat contemporaries. Vietnam veterans estimate of combat act
ivity differed with the passage of time.