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. Author manuscript; available in PMC: 2015 Nov 1.
Published in final edited form as: Drug Alcohol Depend. 2014 Sep 18;144:186–192. doi: 10.1016/j.drugalcdep.2014.09.008

Table 3.

Multivariate analysis of factors associated with initiating someone into injection drug use in the last 12 months (N=605)

Variables Adjusted
odds ratio
95% Confidence Interval
Likelihood of initiating in the future
  No Referent
  Yes 7.09 (3.40, 14.79)
Non-injection cocaine use, last 30 days
  No Referent
  Yes 4.97 (2.08, 11.84)
Injected others – ‘Street doc’
  No Referent
  Yes 4.05 (1.94, 8.47)
Study Site
  San Francisco Referent
  Los Angeles 3.20 (1.52, 6.71)
Ever described injection to a non-injector
  No Referent
  Yes 2.76 (1.28, 5.93)