Country

Population examined

Author

Misuse rate

USA

12,237 8th, 10th, and 12th graders (data collection: 2001)

McCabe et al., 2004 [43]

Last year prevalence: 4.0%

GER

1035 pupils +512 students; mean age: school children: 19.3, university students: 24

(data collection: 2009/2010)

Franke

et al., 2011 [21]

Lifetime prevalence: 1.55% general stimulants, of this number 94% MPH

SUI

1139 10th to 12th graders; Canton of Zurich;mean age: 17.1 (data collection: 2014)

Liakoni et al., 2015 [44]

Lifetime prevalence: 4.0% Last-year prevalence: 2.8%