Article Text
Abstract
Objective Patients with diabetes have an increased risk for urolithiasis, but the associated risk factors remain an active area of research. We investigated whether frailty influenced the probability of patients with diabetes developing urolithiasis.
Research design and methods Using data from the Longitudinal Cohort of Diabetic Patients from 2004 to 2010, we identified those without and with frailty based on a validated, modified FRAIL scale. Patients were followed until they developed urolithiasis, and we used Kaplan-Meier and Cox proportional hazard regression analyses to examine the relationship between frailty, its severity, and the risk of urolithiasis, accounting for demographic profiles, comorbidities, frailty status changes over follow-up, and medications, with risk competition by mortality.
Results Among 525 368 patients with diabetes, 64.4% were not frail, while 28.5%, 6.6%, and 0.6% had 1, 2, and ≥3 FRAIL items at baseline. After 4.2 years of follow-up, 13.4% experienced incident urolithiasis. Cox proportional hazard regression analysis showed that patients with diabetes having at least one FRAIL criterion exhibited a significantly higher risk for urolithiasis compared with non-frail patients (for 1, 2, and ≥3 items, hazard ratio (HR)s: 1.04, 1.23, and 1.46; 95% confidence intervals (CIs) 0.99 to 1.09, 1.12 to 1.35, and 1.12 to 1.91, respectively). This increase in urolithiasis risk remained significant if we restricted analyses to renal stones or recurrent urolithiasis as the study outcomes.
Conclusions Frailty may pose a risk for incident urolithiasis in patients with diabetes. Treating frailty may potentially reduce their risk for urolithiasis.
- chronic kidney disease
- diabetes mellitus
- frail phenotype
- frailty
- renal stone
- urinary stone
- urolithiasis
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Footnotes
Contributors Study design: C-TC, JW, J-WH. Data analysis: C-TC, K-YH, JW. Article drafting: C-TC, JW, J-WH, K-YH, K-LC. All authors approved the final version of the manuscript.
Funding The study is financially sponsored by National Taiwan University Hospital and Ministry of Science and Technology, Taiwan (MOST 108-2314-B-002-055-).
Competing interests None declared.
Patient consent for publication Not required.
Ethics approval The protocol of the current study was approved by the institutional review board of the National Taiwan University Hospital (NO. 201802063W), and its content adhered to the Declaration of Helsinki. Informed consent was waived for all participants as adjudicated by the review board.
Provenance and peer review Not commissioned; externally peer reviewed.
Data availability statement The data used to conduct this study are not for release per administrative regulation, but additional analystic results will be available on reasonable request.