Borrowing data from a real-time disease surveillance system developed at Children's, the researchers tracked hourly visit rates at six Boston-area emergency departments during the each of the 2004 American League Championship Series (ALCS) and World Series games. They plotted these rates against television viewership as indicated by local Nielsen ratings.
During the lowest-rated games -- ALCS games 3 and 4, when the Red Sox were losing and facing probable elimination -- visits to the emergency room were about 15 percent above the volume expected, after adjusting for time of day, day of week, and seasonal factors like flu that can cause spikes in visit rates.
But then, the Red Sox won game 4. During game 5, Nielsen ratings surged and ER visits dipped about 5 percent below normal volume. During the highest-rated games -- the ALCS final game 7 and the World Series final game 4 -- fully 55-60 percent of Boston-area households tuned in and emergency-department visits dipped about 15 percent below the expected volume.
Gripped by Red Sox fever during the 2004 postseason, the study's key researchers, Drs. John Brownstein and Ben Reis of Children's programs in Informatics and Emergency Medicine decided to tap into the emergency department's Automated Epidemiological Geotemporal Integrated Surveillance system, or AEGIS, after the World Series concluded. AEGIS, a disease-monitoring system that has been expanded for use by the
Contact: Aaron Patnode
Children's Hospital Boston