Chunk #22 — 3. Results — 3.3 Probability of transitioning to substance dependence among substance users — 3.3.4 Racial differences in transition to cocaine dependence
Among cocaine users, 16.8% of Whites, 35.9% of Blacks, 20.5% of Hispanics, 20.3% of NH/PI, and 22.5% of AI/AN transitioned to dependence at some time in their life (log rank test= 30.40, p<0.01). Half of the cases of cocaine dependence among Whites, Blacks, Hispanics, NH/PI and AI/AN developed approximately 2, 3, 4, 5 and 4 years, after the first use, respectively (Figure 2).