Table 1.

Demographic and Substance Use Characteristics by Smoking Status

Variable	Persistent Smoker (n=1240)	Non-Smoker (n=164)	Smoking Initiator (n=179)	Quitters (n=196)	Total (n=1779)
Male (%)	70.2	65.2	73.7	70.9	70.2
Female (%)	29.8	34.8	26.3	29.1	29.8
Race (%)**
White	59.9	41.5	59.9	51	57.2
Black	18.1	36	21.2	24.5	20.8
Hispanic	17.3	17.1	14.0	19.9	17.3
Other	4.6	5.5	5	4.6	4.7
% in School	65.4	70.1	64.2	66.3	65.8
Highest Grade	9.7 (1.31)	9.8 (1.37)	9.6 (1.23)	9.6 (1.30)	9.7 (1.31)
Age (x̄, SD)	15.7(1.31)	15.8(1.4)	15.6(1.34)	15.9(1.31)	15.7(1.32)
Modality(%)**
Long-term Inpt.	38.7	36	52	47.4	40.8
Short-term Inpt.	37.3	26.2	26.8	30.1	34.4
Outpatient	24	37.8	21.2	22.4	24.8
Mean Intake Use
Alcohol	2.68(1.83)	2.33(1.64)	2.36(1.71)	2.62(1.67)	2.61(1.67)
Marijuana***	5.51(2.18)a	4.93(2.37)b	5.13(2.19)a,b	5.54(2.17)a,b	5.43(2.2)
Other Drug***	3.52(2.16)a,b	2.88(1.99)a	4.07(2.31)b	3.13(2.13)a	3.48(2.18)

^*p < .05;

^**p < .001;

^***Values in the same row that do not share subscripts (a or b) differ at p<.05