As seen in Table 2, consistency in reported age at first drink differed significantly by ethnicity. At Time 2, half of the African-American participants reported initiating alcohol use 2 or more years later than they reported at Time 1, compared with only 28.1% of Caucasians. Rates of several risk factors for alcohol misuse also varied across classes of reporters. Prevalence of CSA was elevated in Group 1 (RRR=2.15; CI: 1.23-3.74), as was cannabis abuse (RRR=2.41; CI: 1.28-4.53). Rates of major depressive disorder and regular smoking were lower for Group 3 compared with Group 2 (consistent reporters) (RRRs=0.72 [CI: 0.57-0.92] and 0.75 [CI: 0.60-0.93], respectively), but higher for CPAN (RRR=1.36; CI: 1.06-1.74).
