Electronic nutritional intake assessment in patients with urolithiasis: A decision impact analysis

Avory M. Heningburg, Anand Mohapatra, Aaron M. Potretzke, Alyssa Park, Alethea G. Paradis, Joel Vetter, Adrienne N. Kuxhausen, Leslie D. McIntosh, Anthony Juehne, Alana C. Desai, Gerald L. Andriole, Brian M. Benway

Research output: Contribution to journalArticlepeer-review


Purpose: To evaluate a physician’s impression of a urinary stone patient’s dietary intake and whether it was dependent on the medium through which the nutritional data were obtained. Furthermore, we sought to determine if using an electronic food frequency questionnaire (FFQ) impacted dietary recommendations for these patients. Materials and Methods: Seventy-six patients attended the Stone Clinic over a period of 6 weeks. Seventy-five gave consent for enrollment in our study. Patients completed an office-based interview with a fellowship-trained endourologist, and a FFQ administered on an iPad. The FFQ assessed intake of various dietary components related to stone development, such as oxalate and calcium. The urologists were blinded to the identity of patients’ FFQ results. Based on the office-based interview and the FFQ results, the urologists provided separate assessments of the impact of nutrition and hydration on the patient’s stone disease (nutrition impact score and hydration impact score, respectively) and treatment recommendations. Multivariate logistic regressions were used to compare pre-FFQ data to post-FFQ data. Results: Higher FFQ scores for sodium (odds ratio [OR], 1.02; p=0.02) and fluids (OR, 1.03, p=0.04) were associated with a higher nutritional impact score. None of the FFQ parameters impacted hydration impact score. A higher FFQ score for oxalate (OR, 1.07; p=0.02) was associated with the addition of at least one treatment recommendation. Conclusions: Information derived from a FFQ can yield a significant impact on a physician’s assessment of stone risks and decision for management of stone disease.

Original languageEnglish
Pages (from-to)196-201
Number of pages6
JournalInvestigative and Clinical Urology
Issue number3
StatePublished - May 2016


  • Clinical decision support systems
  • Nutrition assessment
  • Surveys and questionnaires
  • Urolithiasis


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