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. Author manuscript; available in PMC: 2013 Jan 29.
Published in final edited form as: J Trauma Stress. 2011 Aug 31;24(5):515–525. doi: 10.1002/jts.20673

Table 6.

GEE Coefficients for Psychotropic Medication Days for PTSD and Delayed PTSD Onset at 24 Months

Variables PTSD
Delayed PTSD
b SE b SE
Age (years) .01 .001*** .01 .001***
Female .13 .05* .14 .05*
Income −.04 .02** −.04 .02**
Married −.22 .05*** −.22 .05***
White .31 .06*** .31 .06***
Latino .17 .07* .18 .07*
WTC attack events .01 .02 .02 .02
Lifetime trauma .10 .02*** .10 .02***
Negative life events .14 .04** .16 .04***
PTSD .61 .21** .53 .24*
Time period .05 .02** .06 .02**
PTSD × Time period .39 .12** .34 .13**
Constant −0.20 0.10* −0.23 0.10*

Note. N = 1,681. GEE = Generalized estimating equation; PTSD = posttraumatic stress disorder; WTC = World Trade Center.

*

p < .05.

**

p < .01.

***

p < .001.