2022
Changes in Prostate-Specific Antigen Testing Relative to the Revised US Preventive Services Task Force Recommendation on Prostate Cancer Screening
Leapman MS, Wang R, Park H, Yu JB, Sprenkle PC, Cooperberg MR, Gross CP, Ma X. Changes in Prostate-Specific Antigen Testing Relative to the Revised US Preventive Services Task Force Recommendation on Prostate Cancer Screening. JAMA Oncology 2022, 8: 41-47. PMID: 34762100, PMCID: PMC8587214, DOI: 10.1001/jamaoncol.2021.5143.Peer-Reviewed Original ResearchConceptsProstate cancer screeningUS Preventive Services Task ForcePSA testingCancer screeningInterrupted time series analysisCohort studyUS Preventive Services Task Force (USPSTF) recommendationDraft statementLarge national cohort studyEligible beneficiariesPSA testing ratesRetrospective cohort studyRate of PSANational cohort studyProstate-specific antigenAge-adjusted ratesTask Force recommendationsUSPSTF guidelinesMedian ageGuideline changesProstate cancerMedian numberMAIN OUTCOMEClaims dataTesting rates
2021
Emergency department visits for radiation cystitis among patients with a prostate cancer history
Lee V, An Y, Park HS, Yu JB, Kim SP, Jairam V. Emergency department visits for radiation cystitis among patients with a prostate cancer history. BJU International 2021, 130: 208-216. PMID: 34806813, DOI: 10.1111/bju.15650.Peer-Reviewed Original ResearchMeSH KeywordsCystitisEmergency Service, HospitalHumansMaleProstateProstatic NeoplasmsRetrospective StudiesUrinary RetentionConceptsProstate cancer historyRadiation cystitisED visitsInvasive proceduresCancer historyProstate cancerRadiation therapyHigher median total chargesNationwide Emergency Department SampleEmergency department visitsEmergency Department SampleMedian total chargesPrior prostatectomyUrinary retentionBlood transfusionDepartment visitsMedian lengthEmergency departmentNational burdenSecondary diagnosisPrimary diagnosisHospital characteristicsPotential complicationsEffective modalityInvasive measuresAdoption of New Risk Stratification Technologies Within US Hospital Referral Regions and Association With Prostate Cancer Management
Leapman MS, Wang R, Park HS, Yu JB, Sprenkle PC, Dinan MA, Ma X, Gross CP. Adoption of New Risk Stratification Technologies Within US Hospital Referral Regions and Association With Prostate Cancer Management. JAMA Network Open 2021, 4: e2128646. PMID: 34623406, PMCID: PMC8501394, DOI: 10.1001/jamanetworkopen.2021.28646.Peer-Reviewed Original ResearchConceptsProstate magnetic resonance imagingMagnetic resonance imagingHospital referral regionsProportion of patientsProstate cancerGenomic testingCohort studyReferral regionsRetrospective cohort studyProstate cancer carePatient-level analysisCommercial insurance claimsProstate cancer managementUS hospital referral regionsYears of ageProportion of menPatients 40Definitive treatmentCancer careTesting uptakeHRR levelMAIN OUTCOMECancer managementPatientsRegional uptake
2020
Quantifying treatment selection bias effect on survival in comparative effectiveness research: findings from low-risk prostate cancer patients
Miccio JA, Talcott WJ, Jairam V, Park HS, Yu JB, Leapman MS, Johnson SB, King MT, Nguyen PL, Kann BH. Quantifying treatment selection bias effect on survival in comparative effectiveness research: findings from low-risk prostate cancer patients. Prostate Cancer And Prostatic Diseases 2020, 24: 414-422. PMID: 32989262, DOI: 10.1038/s41391-020-00291-3.Peer-Reviewed Original ResearchConceptsProstate cancer-specific survivalLow-risk prostate cancerExternal beam radiotherapyTreatment selection biasOverall survivalRadical prostatectomyProstate cancerOS differenceLow-risk prostate cancer patientsCancer-specific survivalEnd Results (SEER) databaseProstate cancer patientsClinical trial designEffectiveness researchComparative effectiveness researchPropensity-score matchingMethodsThe SurveillanceTreatment guidelinesResults databaseEntire cohortResultsA totalCancer patientsTreatment modalitiesNational registryPatient managementNational trends in the management of patients with positive surgical margins at radical prostatectomy
Ghabili K, Park HS, Yu JB, Sprenkle PC, Kim SP, Nguyen KA, Ma X, Gross CP, Leapman MS. National trends in the management of patients with positive surgical margins at radical prostatectomy. World Journal Of Urology 2020, 39: 1141-1151. PMID: 32562045, DOI: 10.1007/s00345-020-03298-6.Peer-Reviewed Original ResearchConceptsAndrogen deprivation therapyPositive surgical marginsUse of ADTPost-prostatectomy radiation therapyRadiation therapySurgical marginsRadical prostatectomyInitial courseNode-negative prostate cancerPost-operative radiation therapyMultivariable logistic regression modelNational Cancer DatabaseAdverse pathologic featuresManagement of patientsPost-operative managementLogistic regression modelsDeprivation therapySurgical cancersPrimary endpointRT useSecondary endpointsPathologic characteristicsPathologic featuresUninsured statusCancer Database
2018
Association Between Prostate Magnetic Resonance Imaging and Observation for Low-risk Prostate Cancer
Leapman MS, Wang R, Park HS, Yu JB, Weinreb JC, Gross CP, Ma X. Association Between Prostate Magnetic Resonance Imaging and Observation for Low-risk Prostate Cancer. Urology 2018, 124: 98-106. PMID: 30107188, DOI: 10.1016/j.urology.2018.07.041.Peer-Reviewed Original ResearchMeSH KeywordsAgedHumansMagnetic Resonance ImagingMaleProstatic NeoplasmsRisk AssessmentWatchful WaitingConceptsLow-risk prostate cancerProstate magnetic resonance imagingMagnetic resonance imagingProstate cancerDefinitive treatmentPCa diagnosisEnd Results-Medicare databaseResonance imagingMultivariable logistic regression analysisPropensity scoreDiagnosis of PCaUse of MRIConditional logistic regression modelsLogistic regression analysisLogistic regression modelsInitial managementMultivariable analysisGreater oddsPatientsSocioeconomic statusDiagnosisHigher likelihoodRegression analysisDemographic factorsCancer
2017
Use of Alternative Medicine for Cancer and Its Impact on Survival
Johnson SB, Park HS, Gross CP, Yu JB. Use of Alternative Medicine for Cancer and Its Impact on Survival. Journal Of The National Cancer Institute 2017, 110: djx145. PMID: 28922780, DOI: 10.1093/jnci/djx145.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsBreast NeoplasmsChoice BehaviorColorectal NeoplasmsComorbidityComplementary TherapiesEducational StatusFemaleHumansIncomeLung NeoplasmsMaleNeoplasm StagingNorthwestern United StatesPacific StatesPatient PreferenceProstatic NeoplasmsResidence CharacteristicsSex FactorsSurvival RateConceptsConventional cancer treatmentsAlternative medicineColorectal cancerCox proportional hazards regressionGreater riskLower comorbidity scoreMultivariable logistic regressionProportional hazards regressionPatterns of utilizationHigher socioeconomic statusNonmetastatic breastComorbidity scoreHormone therapyCurable cancerHazards regressionLung cancerAM useAnticancer treatmentStage IICancerIndependent covariatesLogistic regressionPatientsCancer treatmentSocioeconomic status
2016
The Association Between Evaluation at Academic Centers and the Likelihood of Expectant Management in Low-risk Prostate Cancer
Lester-Coll NH, Park HS, Rutter CE, Corso CD, Mancini BR, Yeboa DN, Kim SP, Gross CP, Yu JB. The Association Between Evaluation at Academic Centers and the Likelihood of Expectant Management in Low-risk Prostate Cancer. Urology 2016, 96: 128-135. PMID: 27392652, DOI: 10.1016/j.urology.2016.06.042.Peer-Reviewed Original ResearchMeSH KeywordsAcademic Medical CentersAgedClinical Decision-MakingHumansMaleMiddle AgedProstatic NeoplasmsRetrospective StudiesRisk AssessmentWatchful WaitingConceptsLow-risk prostate cancerCancer center typeExpectant managementProstate cancerAcademic centersDefinitive treatmentNational Cancer Data BaseHierarchical mixed-effects logistic regression modelsMixed effects logistic regression modelsEffects logistic regression modelsLogistic regression modelsCommunity centersSurvival benefitActive surveillanceCenter typeRetrospective analysisLarge cohortTreatment selectionPertinent covariatesCancerInterfacility variationMenFacility typeFurther investigationRegression models
2014
Assessment of National Practice for Palliative Radiation Therapy for Bone Metastases Suggests Marked Underutilization of Single-Fraction Regimens in the United States
Rutter CE, Yu JB, Wilson LD, Park HS. Assessment of National Practice for Palliative Radiation Therapy for Bone Metastases Suggests Marked Underutilization of Single-Fraction Regimens in the United States. International Journal Of Radiation Oncology • Biology • Physics 2014, 91: 548-555. PMID: 25542310, DOI: 10.1016/j.ijrobp.2014.10.045.Peer-Reviewed Original ResearchConceptsNational Cancer Data BaseBone metastasesRadiation therapyMultiple fraction radiation therapyNon-private health insuranceSingle-fraction regimensPalliative radiation therapyProportion of patientsValue-based treatment decisionsRadiation therapy regimensMultiple-fraction treatmentsSingle-fraction treatmentCost-conscious careIndependent predictorsOsseous metastasesRandomized evidenceTherapy regimensLung cancerTreatment decisionsVertebral sitesClinical practicePatientsMarked underutilizationOlder ageSingle fractionReply to ‘Meta-analysis procedure for the effect of statin on the recurrence of prostate cancer’ by T. Kawada
Park H, Schoenfeld J, Mucci L. Reply to ‘Meta-analysis procedure for the effect of statin on the recurrence of prostate cancer’ by T. Kawada. Annals Of Oncology 2014, 25: 543-544. PMID: 24419238, DOI: 10.1093/annonc/mdt565.Peer-Reviewed Original Research
2013
Statins and prostate cancer recurrence following radical prostatectomy or radiotherapy: a systematic review and meta-analysis
Park HS, Schoenfeld JD, Mailhot RB, Shive M, Hartman RI, Ogembo R, Mucci LA. Statins and prostate cancer recurrence following radical prostatectomy or radiotherapy: a systematic review and meta-analysis. Annals Of Oncology 2013, 24: 1427-1434. PMID: 23508824, PMCID: PMC3660083, DOI: 10.1093/annonc/mdt077.Peer-Reviewed Original ResearchMeSH KeywordsHumansHydroxymethylglutaryl-CoA Reductase InhibitorsMaleNeoplasm Recurrence, LocalProstatectomyProstatic NeoplasmsConceptsRecurrence-free survivalPrimary treatment modalityLocalized prostate cancerEffect of statinsRadical prostatectomy patientsProstate cancer recurrenceHazard ratioProstatectomy patientsTreatment modalitiesRadical prostatectomyCancer recurrenceProstate cancerProstate cancer patientsOncologic outcomesDefinitive treatmentRT patientsCancer patientsEmbase databasesEligible studiesStatinsPatientsSystematic reviewRadiotherapyBeneficial effectsSystematic search