Figure 14.

Cross-tabulation of the alcohol exposure classifications by the two 4-Digit Code and Hoyme diagnostic systems.

The Hoyme et al. alcohol exposure categories listed along the right border are fully defined in Table 2 published in the Hoyme et al. diagnostic guidelines [3]. Patients in this study were classified into only one of these categories starting with the top category (e.g., if a patient was exposed to ≥6 drinks/week ≥2 times and had a DUI, they were classified only in the ≥6 drinks/week ≥2 times category). Overall, 55% of the patients met the Hoyme alcohol criteria, whereas 85% met the 4-Digit Code alcohol criteria.