Table 2.

Association between MCQ score and time since substance use among participants with and without HIV

	b (SE)
Variable	HIV+ (n=30)	HIV− (n=34)
Any substance
<1 hour ago	Ref.	Ref.
1–2 hours ago	−0.04 (0.07)	0.04 (0.09)
2–4 hours ago	0.01 (0.09)	0.15 (0.04)*
4–6 hours ago	−0.08 (0.12)	0.32 (0.11)**
None in the past 6 hours	−0.05 (0.06)	0.07 (0.06)
Stimulants
<1 hour ago	Ref.	Ref.
1–2 hours ago	0.02 (0.10)	0.06 (0.10)
2–4 hours ago	0.09 (0.12)	0.25 (0.08)**
4–6 hours ago	0.02 (0.15)	0.28 (0.13)**
None in the past 6 hours	0.03 (0.08)	0.12 (0.07)
Cocaine
<1 hour ago	Ref.	Ref.
1–2 hours ago	0.09 (0.12)	0.05 (0.10)
2–4 hours ago	0.02 (0.10)	0.24 (0.08)**
4–6 hours ago	−0.06 (0.16)	0.28 (0.13)*
None in the past 6 hours	0.03 (0.08)	0.12 (0.07)
Marijuana
<1 hour ago	Ref.	Ref.
1–2 hours ago	−0.04 (0.11)	0.19 (0.12)
2–4 hours ago	−0.01 (0.14)	0.07 (0.13)
4–6 hours ago	−0.35 (0.20)	0.42 (0.17)*
None in the past 6 hours	−0.06 (0.10)	0.01 (0.09)
Alcohol
<1 hour ago	Ref.	Ref.
1–2 hours ago	−0.02 (0.09)	0.05(0.13)
2–4 hours ago	−0.09 (0.12)	−0.15 (0.15)
4–6 hours ago	0.08 (0.17)	0.44(0.18)**
None in the past 6 hours	−0.05 (0.08)	0.13 (0.10)

^*p<0.05

^**p<0.01

b (SE) was the unstandardized estimates (standard error) estimated using linear mixed effects models.