TABLE 1.
Methylphenidate use in Canadian youth
| Age (years) | Both sexes | Population in Canada 2001 | n | Population using Ritalin | ||||
|---|---|---|---|---|---|---|---|---|
| Male | Female | Ratio (males:females) | Percentage | Men (n[%]) | Women (n[%]) | |||
| All ages | 31,081,887 | 15,388,494 | 15,693,393 | 49.51:50.49 | 350,000 | 1.13 | 273,000 (1.77) | 77,000 (0.4) |
| 5–9 | 2,030,513 | 1,039,900 | 990,613 | 51.21:48.79 | 105,000 | 5.17 | 81,900 (7.88) | 23,100 (2.3) |
| 10–14 | 2,077,877 | 1,065,487 | 1,012,390 | 51.28:48.72 | 154,000 | 7.41 | 120,120 (11.27) | 33,880 (3.3) |
| 15–19 | 2,085,004 | 1,071,010 | 1,013,994 | 51.37:48.63 | 30,100 | 1.44 | 23,478 (2.19) | 6,622 (0.6) |