2024
Postpartum readmission risk: a comparison between stillbirths and live births
Sweeney L, Reddy U, Campbell K, Xu X. Postpartum readmission risk: a comparison between stillbirths and live births. American Journal Of Obstetrics And Gynecology 2024, 231: 463.e1-463.e14. PMID: 38367754, DOI: 10.1016/j.ajog.2024.02.017.Peer-Reviewed Original ResearchRisk of readmissionMental health/substance use disordersPostpartum readmissionHigher risk of readmissionLive birthsRisk of postpartum readmissionSecondary outcomesDelivery characteristicsNationally representative estimatesComplex sampling designRisk factorsIncreased maternal morbidityHigher household incomeTime of readmissionWeeks of dischargeHypertensive disorders of pregnancyUse disorderHigh riskVenous thromboembolismChildbirth hospitalizationPrimary cesareanSingleton stillbirthsDisorders of pregnancyMultivariate regression modelMaternal morbidity
2023
Timeliness of diagnostic evaluation for postmenopausal bleeding: A retrospective cohort study using claims data
Xu X, Chen L, Nunez-Smith M, Clark M, Wright J. Timeliness of diagnostic evaluation for postmenopausal bleeding: A retrospective cohort study using claims data. PLOS ONE 2023, 18: e0289692. PMID: 37682914, PMCID: PMC10490884, DOI: 10.1371/journal.pone.0289692.Peer-Reviewed Original ResearchConceptsPostmenopausal bleedingFirst diagnostic procedureDiagnostic evaluationDiagnostic proceduresGynecologic conditionsMedicaid patientsCox proportional hazards modelPrompt diagnostic evaluationRetrospective cohort studyMarketScan Research DatabasesAdditional risk factorsNon-clinical factorsCommon gynecologic conditionProportional hazards modelLower ratesCohort studyMost patientsPatient characteristicsBenign etiologyGynecologic cancerCancer patientsPreventive careUterine cancerInsurance typeRisk factors
2022
Mode of Delivery in Antepartum Singleton Stillbirths and Associated Risk Factors
Underwood K, Reddy UM, Hosier H, Sweeney L, Campbell KH, Xu X. Mode of Delivery in Antepartum Singleton Stillbirths and Associated Risk Factors. American Journal Of Perinatology 2022, 41: e193-e203. PMID: 35850142, DOI: 10.1055/s-0042-1750795.Peer-Reviewed Original ResearchMode of deliveryAntepartum stillbirthCesarean deliveryPrior cesareanVaginal deliveryMaternal hospital discharge recordsLower likelihoodAssociated risk factorsWeeks of gestationHospital discharge recordsNon-clinical factorsUrban teaching hospitalMultivariable regression analysisPopulation-based sampleFetal death certificatesSingleton stillbirthsPrimary outcomeHospital characteristicsRisk factorsTeaching hospitalDeath certificatesMultivariable regressionCesareanPatientsStillbirthMaternal Outcomes in Subsequent Pregnancies After Classical Cesarean Delivery
Thompson BB, Reddy UM, Burn M, Abdel-Razeq S, Xu X. Maternal Outcomes in Subsequent Pregnancies After Classical Cesarean Delivery. Obstetrics And Gynecology 2022, 140: 212-219. PMID: 35852271, DOI: 10.1097/aog.0000000000004869.Peer-Reviewed Original ResearchConceptsPrior classical cesarean deliveryLow transverse cesarean deliveryPrior low transverse cesarean deliveryClassical cesarean deliverySevere maternal morbidityClinical risk factorsCesarean deliveryUterine ruptureMaternal outcomesSubsequent pregnancyHospital characteristicsRate of SMMPatient clinical risk factorsNational Inpatient Sample databaseLive singleton birthsWeeks of gestationMode of deliveryCross-sectional analysisMaternal morbiditySingleton birthsRisk factorsOutcome measuresMultivariable regressionHigh riskPropensity score methodsPerioperative magnetic resonance imaging in breast cancer care: Distinct adoption trajectories among physician patient-sharing networks
Xu X, Soulos PR, Herrin J, Wang SY, Pollack CE, Killelea BK, Forman HP, Gross CP. Perioperative magnetic resonance imaging in breast cancer care: Distinct adoption trajectories among physician patient-sharing networks. PLOS ONE 2022, 17: e0265188. PMID: 35290417, PMCID: PMC8923453, DOI: 10.1371/journal.pone.0265188.Peer-Reviewed Original ResearchConceptsPhysician patient-sharing networksPerioperative magnetic resonance imagingClinical risk factorsMagnetic resonance imagingPatient clinical risk factorsPatient-sharing networksBreast cancer careRisk-adjusted ratesMastectomy usePhysician networksCancer careRisk factorsEnd Results-Medicare databaseCharacteristics of patientsProportion of patientsBreast cancer surgeryComposition of patientsMRI adoptionDistinct trajectoriesMore patientsCancer surgeryClinical outcomesCancer specialistsMRI usePatients
2019
Abandonment trajectories of conventionally fractionated adjuvant radiotherapy in breast cancer care.
Xu X, Soulos P, Herrin J, Wang S, Pollack C, Evans S, Gross C, Yu J. Abandonment trajectories of conventionally fractionated adjuvant radiotherapy in breast cancer care. Journal Of Clinical Oncology 2019, 37: 531-531. DOI: 10.1200/jco.2019.37.15_suppl.531.Peer-Reviewed Original ResearchPhysician peer groupsBreast cancer careAdjuvant radiotherapyCancer careHigher useNational Medicare claimsPatient risk factorsDistinct trajectoriesYears of ageLow useDifferent baseline levelsRisk-adjusted ratesPatient cohortRisk factorsBreast cancerCost implicationsMedicare claimsBaseline levelsRadiotherapyMedicare perspectiveCFRTCurve analysisPhysiciansPatientsLatent growth curve analysisPrevalence, characteristics, and risk factors of occult uterine cancer in presumed benign hysterectomy
Desai VB, Wright JD, Gross CP, Lin H, Boscoe FP, Hutchison LM, Schwartz PE, Xu X. Prevalence, characteristics, and risk factors of occult uterine cancer in presumed benign hysterectomy. American Journal Of Obstetrics And Gynecology 2019, 221: 39.e1-39.e14. PMID: 30853364, PMCID: PMC7006101, DOI: 10.1016/j.ajog.2019.02.051.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedAsianBlack or African AmericanComorbidityEndometrial NeoplasmsEndometriosisEthnicityFemaleHispanic or LatinoHumansHysterectomyIncidental FindingsLeiomyomaLeiomyosarcomaMenstruation DisturbancesMetrorrhagiaMiddle AgedObesityPrevalenceRisk AssessmentRisk FactorsSarcomaUnited StatesUterine NeoplasmsUterine ProlapseWhite PeopleYoung AdultConceptsOccult uterine cancerUterine cancerBenign indicationsRisk factorsUterine sarcomaBenign hysterectomyEndometrial carcinomaPredictive valueResearch Cooperative System databaseState cancer registry dataNew York Statewide PlanningHigh negative predictive valueLow positive predictive valueAssociated risk factorsCorpus uteri cancerLarge population-based sampleCancer registry dataPopulation-based sampleAmbulatory surgery centersNegative predictive valuePositive predictive valueRisk prediction modelRace/ethnicityPostmenopausal bleedingPatient characteristics
2017
Hospital variation in cost of childbirth and contributing factors: a cross‐sectional study
Xu X, Lee H, Lin H, Lundsberg L, Pettker C, Lipkind H, Illuzzi J. Hospital variation in cost of childbirth and contributing factors: a cross‐sectional study. BJOG An International Journal Of Obstetrics & Gynaecology 2017, 125: 829-839. PMID: 29090498, DOI: 10.1111/1471-0528.15007.Peer-Reviewed Original ResearchConceptsChildbirth hospitalisationsHospital variationObstetric interventionsHospital variancePatient clinical risk factorsSevere maternal morbiditySevere newborn morbidityClinical risk factorsMaternal sociodemographic characteristicsHospital discharge dataCross-sectional studyUrban-rural statusCross-sectional analysisCosts of childbirthHigh-cost hospitalsVertex birthsMaternal morbidityCaesarean deliveryNewborn morbidityBirth attendantsRisk factorsHospital typeCare capacityHospitalisationBetter outcomes
2016
China Patient-centered Evaluative Assessment of Cardiac Events Prospective Study of Acute Myocardial Infarction: Study Design
Li J, Dreyer RP, Li X, Du X, Downing NS, Li L, Zhang HB, Feng F, Guan WC, Xu X, Li SX, Lin ZQ, Masoudi FA, Spertus JA, Krumholz HM, Jiang LX, Group T. China Patient-centered Evaluative Assessment of Cardiac Events Prospective Study of Acute Myocardial Infarction: Study Design. Chinese Medical Journal 2016, 129: 72-80. PMID: 26712436, PMCID: PMC4797546, DOI: 10.4103/0366-6999.172596.Peer-Reviewed Original ResearchConceptsPatient-reported outcomesAcute myocardial infarctionChina PatientMedical historyMyocardial infarctionPatient experienceLong-term adverse eventsRisk factor controlConsecutive AMI patientsAMI studyPatient's medical historyQuality of lifeNational Coordinating CentreQuality improvement activitiesHospital outcomesCardiac eventsPatient demographicsAdverse eventsMedical chartsHealthcare utilizationAMI patientsMedication adherenceProspective studyHospitalization eventsRisk factors