Table 1.

Effects of traumatic event re-exposure and PTSD symptoms on days of drug use monthly over a 16-month follow-up, presented as adjusted B(SE) with p-value (N = 162).

	Same month	One month later	Two months later
	Cocaine use (days)
Traumatic event re-exposure (yes/no)	1.16 (0.34)	0.99 (0.34)	0.39 (0.34)
	p = 0.001	p = 0.004	p = 0.256
PTSD symptoms (deciles)	−0.02 (0.17)	−0.03 (0.21)	0.06 (0.21)
	p = 0.895	p = 0.876	p = 0.772
	Heroin use (days)
Traumatic event re-exposure (yes/no)	0.44 (0.39)	−0.33 (0.40)	−0.34 (0.40)
	p = 0.266	p = 0.403	p = 0.391
PTSD symptoms (deciles)	0.22 (0.21)	0.12 (0.22)	−0.32 (0.24)
	p = 0.299	p = 0.590	p = 0.172

Note. Models were adjusted for study treatment condition, gender, age, race, and previous month’s drug use.