Table 2.

Characteristics of Poor sleepers (as defined by PSQI^a scores >5) versus Good sleepers (as defined by PSQI^a scores ≤ 5) in individuals with cocaine and METH use disorders

COCAINE USE DISORDERS				METH USE DISORDERS
PSQI > 5 (n=34)	PSQI ≤ 5 (n=17)	P		PSQI > 5 (n=56)	PSQI ≤ 5 (n=29)	P
9.9±0.6	3.5±0.4	<0.0001	PSQIa	10.8±0.6	3.4±0.3	<0.0001
11.3±0.9	6.3±0.7	0.001*	ESS	10.8±0.6	8.1±0.9	0.043*
44.8±1.1	45.5±1.5	0.713	Age	37.2±1.2	37.4±1.6	0.944
12.2±0.2	11.9±0.7	0.523	Education	12.1±0.3	11.2±0.7	0.194
			Stimulant Use
18.0±1.4	19.6±1.7	0.486	Years of use	11.7±0.9	12.7±1.5	0.556
19.6±1.3	14.1±2.4	0.032*	Recent useb	18.2±1.2	16.4±1.8	0.410
1.7±0.1	2.7±0.5	0.026*	Grams/day	1.1±0.1	1.4±0.4	0.349

^*P<0.05; Reflect Mean ± SEM

^aNumber reflects global PSQI score

^bRecent use equals the number of days in which stimulant was used in the 30 days.