MP47-18 ARE SEASONAL VARIATIONS IN NEPHROLITHIASIS SEEN IN THE PEDIATRIC POPULATION?

You have accessJournal of UrologyPediatric Urology III (MP47)1 Sep 2021MP47-18 ARE SEASONAL VARIATIONS IN NEPHROLITHIASIS SEEN IN THE PEDIATRIC POPULATION? Ridwan Alam, Wayland Wu, Brian Matlaga, and Jared Winoker Ridwan AlamRidwan Alam More articles by this author , Wayland WuWayland Wu More articles by this author , Brian MatlagaBrian Matlaga More articles by this author , and Jared WinokerJared Winoker More articles by this author View All Author Informationhttps://doi.org/10.1097/JU.0000000000002068.18AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail Abstract INTRODUCTION AND OBJECTIVE: It is believed that higher temperatures in the summer months are associated with increased risk of stone formation and subsequent utilization of hospital resources, including inpatient admission. However, these observations have been derived primarily from the adult population. We sought to examine if this purported association between seasonal temperature changes and inpatient stone admissions extends to the pediatric population. METHODS: The most recently available Kids’ Inpatient Database (KID) from 2016 was used to estimate nationwide pediatric inpatient admissions in the United States. Patients with a stone-related admission were identified based on hospital billing codes. KID was linked to temperature data from the National Oceanic and Atmospheric Administration to identify the average monthly temperature at the time and location of admission. Admissions were grouped into seasons: winter (December-February), spring (March-May), summer (June-August), and fall (September-November). This analysis was replicated using the National Inpatient Sample (NIS) from 2016 to evaluate associations in the adult population as a frame of reference. RESULTS: There were 6.27 million pediatric inpatient admissions in 2016, of which 8502 (0.14%) had a stone diagnosis. Although the summer months were warmer, there was no significant difference in the number of inpatient stone admissions based on season. Furthermore, there was no significant association between stone admission and temperature (RR 1.00 per degree Fahrenheit, p=0.15). In adults, however, there was a significant association between inpatient stone admissions and season (p<0.001), with an increase seen in the summer months. Furthermore, the risk of stone admission increased by 1% with every degree increase in temperature (RR 1.01 per degree Fahrenheit, p<0.001). CONCLUSIONS: Consistent with prior observational data, increased temperatures were associated with an increased risk of admission in adults. However, there was no observed relationship with seasonal temperature in the pediatric population. This may underscore the differing physicochemical factors driving lithogenesis in children, as compared to adults. Source of Funding: None © 2021 by American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 206Issue Supplement 3September 2021Page: e830-e830 Advertisement Copyright & Permissions© 2021 by American Urological Association Education and Research, Inc.MetricsAuthor Information Ridwan Alam More articles by this author Wayland Wu More articles by this author Brian Matlaga More articles by this author Jared Winoker More articles by this author Expand All Advertisement Loading ...

Topic: Kidney Stones and Urolithiasis Treatments
Subfield: Pulmonary and Respiratory Medicine
Field: Medicine
Domain: Health Sciences