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. Author manuscript; available in PMC: 2009 Sep 1.
Published in final edited form as: J Adolesc Health. 2008 Sep;43(3):296–305. doi: 10.1016/j.jadohealth.2008.06.002

Table 2.

Number of drugs used in past three months by site and status (%, mean)

Melbourne Los Angeles
Number of drugs used Experienced New Experienced New
No drugs 7.3 12.1 16.5 27.2
1–2 drugs 27.9 44.8 32.5 37.5
3–5 drugs 34.2 30.3 24.9 24.9
6+ drugs 30.6 12.7 26.1 10.3
Mean # of drugs (SD) S*T* 4.17(2.93) 2.92(2.51) 3.54(3.11) 2.22(2.18)
S

significant main effect of site

T

significant main effect of type

*

p<.001