Abstract summary 

To characterize the impact of nephrolithiasis diagnosis and treatment on health care utilization and identify predictors of barriers to care in the patient population.We conducted a retrospective cohort study using the All of Us Database, a National Institutes of Health database targeting recruitment of underrepresented populations. Patients with a diagnosis of kidney stones were included and matched to a control group. Primary outcomes were patients' self-reported health care access and utilization. Univariable and multivariable regression analyses were performed.9173 patients with a diagnosis of nephrolithiasis were included and matched to 9173 controls without a diagnosis of nephrolithiasis. Patients with kidney stones were less likely to have had >1 year since last provider visit (1.7% vs 3.8%, P <.001), but did not report increased delays obtaining care (31%), inability to afford care (11.4%), or higher likelihood of skipping medications (12.9%). Among patients with stones, 1208 (13.2%) had been treated surgically. On multivariable analysis, younger age, female sex, lower income, lower education, non-insured status, and lower physical and mental health were all associated with delays obtaining care, difficulty affording care, skipping medications, and/or prolonged time since seeing a provider.A diagnosis of nephrolithiasis and subsequent surgical intervention were not associated with an increase in patient-reported barriers to care. However, among patients with nephrolithiasis, younger, comorbid, female patients from lower socioeconomic status are at significant risk of being unable to access and utilize treatment.

Authors & Co-authors:  Wymer Boddu Choudry Narang Heidenberg Payne Girardo Humphreys Stern

Study Outcome 

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