@article{ref1,
title="The effects of initial trauma exposure on the symptomatic response to a subsequent trauma",
journal="Canadian journal of behavioural science",
year="2001",
author="Brunet, Alain and Boyer, Richard and Weiss, Daniel S. and Marmar, Charles R.",
volume="33",
number="2",
pages="97-102",
abstract="The effect of initial trauma on the symptomatic response to a subsequent trauma was investigated in a cross-sectional study of urban bus drivers. Comparisons were made among 175 drivers (mean age 42.2 yrs) who had developed either high or low symptoms of %PTSD% as a result of the initial trauma, and a third group exposed to only a single trauma. The group with high levels Of PTSD symptoms after the initial trauma reported high PTSD symptoms for a subsequent trauma (75%) significantly more often than the other two groups who did not differ from each other (Low PTSD symptoms group 49%, No prior trauma group 41 %). These results suggest that unless trauma exposure leads to significant PTSD symptoms, it is not a risk factor for high PTSD symptoms after exposure to a subsequent traumatic event. (PsycInfo Database Record (c) 2022 APA, all rights reserved)<p />",
language="en",
issn="0008-400X",
doi="10.1037/h0087132",
url="http://dx.doi.org/10.1037/h0087132"
}