Study Three Results Section: _s between [variables] are presented in Table 2. As expected, age at menarche significantly and positively related to age at first intercourse, age at first alcohol use, and age at first pregnancy. The proposed mediators (alcohol use and age at first intercourse) also exhibited significant positive relations to age at first pregnancy. Age at first intercourse was positively correlated with age at first substance use and age at pregnancy. TABLE 2. Intercorrelations Between Study Variables (N = 666) Variable 2 3 Age at menarche 1.00 Age at first intercourse .27* Age at first alcohol use 1.00 26* .44* 1.00 Age at first pregnancy .14* .56* .29* 1.00 * Intercorrelations are significant at the P