Infodemiology of renal diseases: a novel opportunity to investigate public global interest.

The aim of this study was to investigate the global community interest about renal diseases through relative search volumes (RSVs) of Google Trends (GT). The online interest for the search terms hematuria (H), proteinuria (P), chronic kidney disease (CKD) and dialysis (D) was measured by evaluating RSVs from 2010 to 2019. All countries listed in GT were analysed and those presenting RSVs related to all search terms were considered following geographical position. Mean values of RSVs for D, CKD, H and P were 80±9%, 11±2%, 17±2% and 11±1%, respectively. D is the search term most frequently typed in English-speaking countries. On the other hand, in Latin Countries, the interest for P and H was higher than D. Searching for D, CKD and H are highly correlated whilst correlation coefficients between RSVs for D, CKD, and H with P are lower. Since 2010, the interest for renal diseases maintained stable. GT is a reliable tool in evaluating global interest for renal diseases in different geographical areas and temporal patterns. Although infodemiology represents a method for investigating the dissemination of information at a global level, our results suggest the need for increasing general population's interest for renal diseases especially, and move from simple interest to global awareness in the view of prevention strategies.