Skip to main content
. Author manuscript; available in PMC: 2016 Jul 1.
Published in final edited form as: J Affect Disord. 2015 Mar 31;179:23–30. doi: 10.1016/j.jad.2015.03.026

Figure 1. Prevalence rates of odor-elicited distress for “burning” odors.

Figure 1

Combat veterans with PTSD reported increased sensitivity on 6 of the 7 burning-related odors compared to healthy HC and an increased sensitivity on all 7 burning odors compared to combat veterans without PTSD. As calculated by binomial statistics, this pattern of increased sensitivity across these numbers of individual burning odors in CV+PTSD compared to HC and CV-PTSD subjects have probabilities of p=.054 and p=.0078, respectively, of taking place by chance. In terms of individual odors, a significantly higher prevalence of combat veterans with PTSD (CV+PTSD) compared to combat veterans without PTSD (CV-PTSD) [χ2 (1, N=52) = 4.40, p=.036] or healthy controls (HC) [χ2 (1, N=51) = 5.13, p=.024] specifically reported burning hair to be distressing. Gun powder was also distressing for significantly more CV+PTSD than HC [χ2 (2, N=51) = 6.93, p=.031].