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.