Both Time 1 and Time 2 reports of age at first drink were significant predictors of maximum frequency of HED, with earlier age being associated with more frequent HED. The odds ratios for Time 1 and Time 2 reports were 0.87 (CI: 0.84-0.91) and 0.76 (CI: 0.72-0.79), respectively. A pairwise comparison revealed that although the association was significant for both reports, it was stronger for Time 2 than Time 1 reports (χ2(1)=32.70; p<0.001).