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. Author manuscript; available in PMC: 2014 Apr 1.
Published in final edited form as: J Adolesc Health. 2012 Nov 22;52(4):480–485. doi: 10.1016/j.jadohealth.2012.08.007

Table 1.

Diversion sources of nonmedical prescription opioids among high school seniors nationally, overall and by sex, 2007–2010

Overall nonmedical users Male nonmedical users Female nonmedical users Sex differences
Diversion Source n (%) n (%) n (%) Chi-square (DF), p-value
Previous prescription only 104 (14.4%) 40 (11.5%) 59 (17.2%) 29.04 (1), p < 0.001
Previous prescription + other sources 147 (22.5%) 68 (20.8%) 74 (25.1%) 11.54 (1), p < 0.001
Other sources 396 (63.2%) 202 (67.7%) 170 (57.7%) 47.07 (1), p < 0.001

Note: Sample sizes for sex vary from overall sample sizes due to missing data on the sex variable in the MTF data set.

Source: 2007–2010 MTF; weighted estimates with average design effect correction of 2.0 applied to chi-square statistics.