Table 4.

Effect of PTSD at baseline on daily opioid among prescription opioid users at 6-month follow-up

	Unadjusted	Fully Adjusted	Fully Adjusted with imputation for missing values
Non-stratified	1.12 (0.72–1.76)	0.79 (0.48–1.31)	0.77 (0.46–1.29)
High ES	1.06 (0.58–1.94)	0.83 (0.42–1.62)	0.81 (0.40–1.63)
Not High ES	0.93 (0.46–1.87)	0.65 (0.27–1.57)	0.62 (0.25–1.53)
p-value for interaction	0.7895	0.5246	0.6622