Alcohol-related ED visits for college-age patients have increased since 2003. When analyzed with respect to holidays and days of week, college-age specific trends begin to emerge: college-aged ED visits differ from the general population by day of week (Fig. 1) . Additionally, college age groups can be distinguished from other ages on certain days of the year. Most notably, early summer and early fall show these age-specific increases, and this age group drives some holiday spikes, such as New Year's Day/ Eve.