Table 2.
Risk estimates by age and year of assessment of starting nonmedical use of prescription stimulants per 100 young people in the United States (n=240,160)a
| Age in Years on Date of Survey Assessment | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | |
| 2004 | 0.1 | 0.5 | 0.4 | 1.4 | 1.3 | 0.6 | 0.8 | 1.2 | 0.7 | 0.1 |
| 2005 | 0.0 | 0.2 | 0.5 | 0.8 | 0.6 | 0.7 | 0.7 | 0.8 | 0.5 | 0.1 |
| 2006 | 0.1 | 0.2 | 0.8 | 0.8 | 0.8 | 1.3 | 0.8 | 0.4 | 0.2 | 0.3 |
| 2007 | 0.1 | 0.5 | 0.2 | 0.4 | 0.7 | 0.9 | 0.3 | 0.7 | 0.4 | 0.5 |
| 2008 | 0.1 | 0.4 | 0.7 | 0.3 | 0.7 | 0.6 | 1.1 | 0.5 | 0.1 | 0.4 |
| 2009 | 0.2 | 0.4 | 0.5 | 0.3 | 0.4 | 0.6 | 0.8 | 0.7 | 0.7 | 0.3 |
| 2010 | 0.1 | 0.2 | 0.3 | 0.5 | 0.5 | 0.7 | 0.7 | 0.9 | 0.6 | 0.2 |
| 2011 | 0.0 | 0.1 | 0.40 | 0.6 | 0.5 | 0.7 | 0.9 | 0.7 | 0.6 | 0.4 |
| 2012 | 0.1 | 0.3 | 0.5 | 0.2 | 0.5 | 0.9 | 0.6 | 1.1 | 0.8 | 0.1 |
a
Data are from the US National Surveys on Drug Use and Health 2004–2012; 10,750 (4.3%) individuals excluded who had previously misused stimulants. Weighted proportions are reported. Because of the large samples, all standard errors for these estimates were below 0.1%.