Derivation and validation of a clinical prediction rule for uncomplicated ureteral stone—the STONE score: retrospective and prospective observational cohort studies
Moore CL, Bomann S, Daniels B, Luty S, Molinaro A, Singh D, Gross CP. Derivation and validation of a clinical prediction rule for uncomplicated ureteral stone—the STONE score: retrospective and prospective observational cohort studies. The BMJ 2014, 348: g2191. PMID: 24671981, PMCID: PMC3966515, DOI: 10.1136/bmj.g2191.Peer-Reviewed Original ResearchConceptsUncomplicated ureteral stonesClinical prediction ruleUreteral stonesDerivation cohortValidation cohortComputed tomographyProbability groupEmergency departmentSTONE scoreUrban tertiary care emergency departmentProspective observational cohort studyTertiary care emergency departmentNon-Contrast Computed TomographyPrediction ruleModerate probability groupCommunity emergency departmentsObservational cohort studyPresence of nauseaNon-black raceMultivariate logistic regressionLow probability groupHigh probability groupSymptomatic ureteral stonesAlternative findingsHigh score group