|
Drug |
Time 1
Nonusers |
Initiated Use
by Time 2 |
Time 1
Users |
Ceased Use
by Time 2 |
Continued Use
at Time 2 |
| Marijuana |
1504 |
12.8% |
1460 |
19.6% |
80.4% |
| Prescription stimulants |
2591 |
11.7% |
377 |
39.3% |
60.7% |
| Prescription analgesics |
2642 |
6.5% |
319 |
58.6% |
41.4% |
| Cocaine |
2862 |
4.1% |
99 |
36.4% |
63.6% |
| Hallucinogens |
2700 |
3.1% |
263 |
43.0% |
57.0% |
| Prescription tranquilizers |
2798 |
3.0% |
128 |
63.3% |
36.7% |
| Inhalants |
2833 |
1.3% |
136 |
67.6% |
32.4% |
| Ecstasy |
2877 |
1.3% |
93 |
69.9% |
30.1% |
| Amphetamines* |
2916 |
0.7% |
46 |
89.1% |
10.9% |
| Heroin |
2947 |
0.2% |
5 |
100.0% |
0.0% |
Note: Longitudinal data represent lifetime and past-year drug use reported during
the first year (Time 1) and second year (Time 2) of college, respectively. Initiation
is computed as the number of new users at Time 2 who had never used at Time
1, divided by all nonusers at Time. Cessation is the number of Time 1 users who
did not use at Time 2, divided by all Time 1 users. Continuation is the number of
students who used at both Time 1 and Time 2, divided by all the Time 1 users.
*Amphetamines include methamphetamine but do not include prescription or overthe-
counter medications.
Source: National College Student Assessment [4]. |
