TABLE 2.

RADARS System Drug Diversion Program: Total Extended-Release Amphetamine and Oral Methylphenidate Rates

Quarter/Year	Rate per 1,000 URDD	95% CI	Rate per 100,000 Population	95% CI
Total extended-release oral methylphenidate
Q3/2007	0.022	0.013–0.036	0.015	0.009–0.025
Q4/2007	0.016	0.009–0.029	0.012	0.007–0.022
Q1/2008	0.014	0.008–0.023	0.010	0.006–0.017
Q2/2008	0.024	0.016–0.037	0.016	0.011–0.025
Q3/2008	0.020	0.012–0.034	0.015	0.009–0.024
Q4/2008	0.020	0.012–0.033	0.016	0.010–0.027
Q1/2009	0.039	0.027–0.055	0.033	0.024–0.047
Q2/2009	0.037	0.026–0.053	0.024	0.017–0.035
Q3/2009	0.040	0.028–0.057	0.025	0.018–0.035
Q4/2009	0.018	0.010–0.031	0.014	0.008–0.024
Q1/2010	0.049	0.036–0.068	0.039	0.028–0.054
Q2/2010	0.015	0.008–0.026	0.010	0.005–0.017
Q3/2010	0.026	0.016–0.042	0.019	0.012–0.030
Q4/2010	0.015	0.008–0.028	0.012	0.007–0.022
Q1/2011	0.023	0.015–0.036	0.019	0.012–0.030
Q2/2011	0.045	0.031–0.064	0.031	0.022–0.044
Total extended-release Amphetamines
Q3/2007	0.035	0.023–0.052	0.022	0.015–0.033
Q4/2007	0.028	0.018–0.043	0.019	0.012–0.030
Q1/2008	0.048	0.036–0.063	0.034	0.026–0.045
Q2/2008	0.039	0.028–0.055	0.027	0.019–0.037
Q3/2008	0.049	0.036–0.067	0.038	0.028–0.052
Q4/2008	0.047	0.034–0.066	0.040	0.029–0.055
Q1/2009	0.048	0.035–0.065	0.042	0.031–0.057
Q2/2009	0.037	0.027–0.051	0.031	0.022–0.042
Q3/2009	0.042	0.031–0.057	0.034	0.025–0.046
Q4/2009	0.034	0.024–0.047	0.034	0.024–0.048
Q1/2010	0.062	0.048–0.079	0.065	0.051–0.084
Q2/2010	0.043	0.033–0.057	0.040	0.030–0.052
Q3/2010	0.037	0.026–0.051	0.038	0.027–0.052
Q4/2010	0.033	0.023–0.046	0.037	0.026–0.051
Q1/2011	0.043	0.032–0.056	0.051	0.039–0.067
Q2/2011	0.048	0.037–0.062	0.057	0.044–0.074