TY - JOUR T1 - Seasonality of Ankle Swelling: Population Symptom Reporting Using Google Trends JF - The Annals of Family Medicine JO - Ann Fam Med SP - 356 LP - 358 DO - 10.1370/afm.1953 VL - 14 IS - 4 AU - Fangwei Liu AU - G. Michael Allan AU - Christina Korownyk AU - Michael Kolber AU - Nigel Flook AU - Harvey Sternberg AU - Scott Garrison Y1 - 2016/07/01 UR - http://www.annfammed.org/content/14/4/356.abstract N2 - In our experience, complaints of ankle swelling are more common in summer, typically from patients with no obvious cardiovascular disease. Surprisingly, this observation has never been reported. To objectively establish this phenomenon, we sought evidence of seasonality in the public’s Internet searches for ankle swelling. Our data, obtained from Google Trends, consisted of all related Google searches in the United States from January 4, 2004, to January 26, 2016. Consistent with our expectations and confirmed by similar data for Australia, Internet searches for information on ankle swelling are highly seasonal (highest in midsummer), with seasonality explaining 86% of search volume variability. ER -