RT Journal
A1 Carroll BJ
T1 POsttraumatic stress disorder subtypes invalid
JF Archives of General Psychiatry
JO Archives of General Psychiatry
YR 2011
FD September 1
VO 68
IS 9
SP 978
OP 980
DO 10.1001/archgenpsychiatry.2011.93
UL http://dx.doi.org/10.1001/archgenpsychiatry.2011.93
AB 
The essential error consists in the drawing of categorical conclusions from dimensional analyses. A statistically significant triple interaction among allele carrier status, PTSD status, and baseline serum cortisol concentration or change in cortisol concentration with dexamethasone administration does not identify a specific dysfunction or a PTSD subtype. Further to the fictive status of these proposals, operational definitions of the supposed subtypes of PTSD were not given.