Longitudinal trend of urolithiasis incidence rates among world countries during past decades.

"Declarations Ethics approval and consent to participateThe data for this study is publicly available from the IHME database, which provides global health data on various topics. Owing to the use of the IHME database, informed consent was not required for the study, as only aggregated non-identifiable and non-individual data were extracted and analyzed. We have cited IMHE according to the proposed format. This study was approved by Shahid Beheshti University of Medical Sciences (Ethic number: IR.SBMU.RETECH.REC.1399.821). All methods were carried out in accordance with relevant guidelines and regulations. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding No funding was received for this study."