Table 3 Estimation of the French prevalence of methylphenidate use in 2004

0-4

[0.054 ; 0.055]

[0.027 ; 0.028]

[0.040 ; 0.041]

5-9

[3.0; 3.1]

[5.1 ; 5.2]

[1.8 ; 1.9]

10-14

[3.7 ; 3.8]

[0.69 ; 0.71]

[2.7 ; 2.8]

15-18

[1.7 ; 1.8]

[0.27 ; 0.28]

[1.0 ; 1.1]

all

[2.5 ; 2.6]

[0.38 ; 0.39]

[1.4 ; 1.5]