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This Web site is a component of the SAMHSA Health Information Network. |
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Section III: Population Dynamics
Table 2. Variation in U.S. community-based stimulant prevalence rates according
to the specific population sources, study year, age of the youths, and whether
a point or period prevalence was estimated
| Time Interval1 |
Prevalence Estimate2 |
Source Population3 |
Study Year |
Youth Age (years) |
Author |
| One point |
8-10 |
School |
1995 |
≈ 7-10 |
LeFever et al. (1999) |
| One point |
4.5 |
School |
1998 |
≈ 5-10 |
Safer et al. (2000) |
| One point |
7.1 |
County |
1997-1998 |
≈ 6-10 |
Rowland et al. (2002) |
| One year |
4.1 |
Total |
1996 |
6-14 |
Olfson et al. (2002) |
| One year |
1.1 |
Total |
1992 |
< 20 |
Rappley et al.(1995) |
| One year |
2.3 |
Medicaid |
1999 |
≤ 18 |
Martin et al. (2003) |
| One year |
9.5 |
Medicaid |
1998 |
6-14 |
Rushton and Whitmire (2001) |
| One year |
4.1 |
HMO |
1997 |
3-17 |
Guevara et al. (2002) |
| One year |
3.0 |
PPO/IPA |
1998 |
6-17 |
Stein et al. (2001) |
| One year |
7.5/4.2 |
Medicaid/HMO |
1996 |
5-14 |
Zito et al. (2003) |
1 Time interval assessed was either a point prevalence
or a period (annual) prevalence.
2 Prevalence is defined
as the proportion of youths with one or more prescription records for a
stimulant per 100 enrolled youths.
3 Source populations were
counts of all youths in the appropriate age group. |
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