TABLE 1.

Demographics and participant's characteristics.

CHARACTERISTIC (N = 301)	N	%
Sex
Male	114	37.9
Female	187	62.1
Marital Status
Married	70	23.3
Widowed, separated or divorced	105	34.9
Never Married	126	41.9
Employment
Unemployed	88	29.2
Employed	213	70.8
Race or Ethnicity
White	211	70.1
African American	4	1.3
Asian	37	12.3
Hispanic	39	13.0
Other	10	3.3
Route of Methamphetamine Administration*
Intranasal	44	14.0
Intravenous	62	20.9
Smoking	190	64.2
Methamphetamine Use During Follow-up Period
Abstinent	66	22.0
Low	75	25.0
Moderate	75	25.0
Heavy	84	28.0
	MEAN	SD †
Age in Years at Follow-up	36.5	7.9
Years of Education at Follow-up	12.5	1.6
No. of Days Using Methamphetamine in the Preceding 30 Days, Measured at Follow-up	4.5	8.6

Information regarding route of administration was missing for five of the 301 Methamphetamine Treatment Project participants.

^†SD: Standard deviation