Economic burden of complicated ureteral stent removal in patients with kidney stone disease in the USA: Supplementary Table 1

Aim: To examine the medical costs of simple versus complicated ureteral stent removal. Materials
& methods: We included adults with kidney stones undergoing simple or complicated cystoscopy-based
stent removal (CBSR) post ureteroscopy from the 2014 to 2018 Merative™ MarketScan R ? Commercial
Database. The medical costs of patients with complicated and simple CBSR were compared. Results:
Among 16,682 patients, 2.8% had complicated CBSR. Medical costs for patients with complicated CBSR
were higher than for simple CBSR ($2182 [USD] vs $1162; p < 0.0001). Increased stenting time, increased
age, southern US geography and encrusted stent diagnoses were significantly associatedwith complicated
CBSR. Conclusion: Complicated ureteral stent removal doubled the medical costs associated with CBSR.
Ureteral stents with anti-encrustation qualities may reduce the need for complicated CBSR and associated
costs.

目的：旨在探讨简单与复杂输尿管支架移除的医费用时对比。研究方法：本研究纳入了2014至2018年间Merative™ MarketScan R 商业数据库中接受输尿管镜下简单或复杂膀胱镜支架移除（CBSR）的成年肾结石患者。比较了复杂和简单CBSR患者的医疗费用。结果：在16,682名患者中，2.8%的患者接受了复杂的CBSR。复杂CBSR患者的医疗费用高于简单CBSR（2182美元[USD]对比1162美元；p < 0.0001）。增加的支架置留时间、增龄、美国南部地理位置以及支架被覆诊断与复杂的CBSR显著相关。结论：复杂的输尿管支架移除使得与CBSR相关的医疗费用翻倍。具有抗被覆特性的输尿管支架可能减少复杂CBSR及其相关费用的需求。