2023
The interaction between geriatric and neighborhood vulnerability: Delineating prehospital risk among older adult emergency general surgery patients
Zogg C, Falvey J, Kodadek L, Staudenmayer K, Davis K. The interaction between geriatric and neighborhood vulnerability: Delineating prehospital risk among older adult emergency general surgery patients. Journal Of Trauma And Acute Care Surgery 2023, 96: 400-408. PMID: 37962136, PMCID: PMC10922165, DOI: 10.1097/ta.0000000000004191.Peer-Reviewed Original ResearchGeriatric vulnerabilitiesOlder adultsEGS careAdverse outcomesHospital Frailty Risk ScoreEmergency general surgery patientsGreater riskFlorida State Inpatient DatabaseFrailty Risk ScoreGeneral surgery patientsState Inpatient DatabasesArea Deprivation IndexEthnic minority patientsNeighborhood vulnerabilityEGS outcomesHazard ratioOlder patientsSurgery patientsPatient ageEGS conditionsInpatient DatabaseVulnerable patientsPatient residesMinority patientsRisk score
2022
Defining Referral Regions for Inpatient Trauma Care: The Utility of a Novel Geographic Definition
Zogg CK, Becher RD, Dalton MK, Hirji SA, Davis KA, Salim A, Cooper Z, Jarman MP. Defining Referral Regions for Inpatient Trauma Care: The Utility of a Novel Geographic Definition. Journal Of Surgical Research 2022, 275: 115-128. PMID: 35272088, PMCID: PMC9038698, DOI: 10.1016/j.jss.2021.12.050.Peer-Reviewed Original ResearchConceptsHospital referral regionsReferral regionsHospital service areasTrauma regionTrauma careTrauma systemHospital useInpatient trauma careOlder adult patientsState Inpatient DatabasesUS health systemRegional trauma careInpatient traumaAdult patientsNET patientsTrauma patientsInpatient DatabaseDemographic featuresHealth systemImportant demographic factorsPatientsGeographic variationDemographic factorsTraumaCare
2021
The Utility of a Novel Definition of Health Care Regions in the United States in the Era of COVID-19: A Validation of the Pittsburgh Atlas Using Pneumonia Admissions
Dalton MK, Miller AL, Bergmark RW, Semco R, Zogg CK, Goralnick E, Jarman MP. The Utility of a Novel Definition of Health Care Regions in the United States in the Era of COVID-19: A Validation of the Pittsburgh Atlas Using Pneumonia Admissions. Annals Of Emergency Medicine 2021, 79: 518-526. PMID: 34952728, PMCID: PMC8612818, DOI: 10.1016/j.annemergmed.2021.11.017.Peer-Reviewed Original ResearchConceptsHealth care regionAcute medical conditionsState Inpatient DatabasesCare regionConcordant carePneumonia admissionsMedical conditionsQuality's State Inpatient DatabasesDiagnosis of sepsisRace/ethnicityInpatient DatabaseSecondary diagnosisInsurance statusPrimary diagnosisInclusion criteriaHospital regionReferral regionsEmergency careLevels of severityConcordance rateLogistic regressionDartmouth AtlasHealthcare ResearchCareHealth care
2020
Hospital Variation in Geriatric Surgical Safety for Emergency Operation
Becher RD, Sukumar N, DeWane MP, Stolar MJ, Gill TM, Schuster KM, Maung AA, Zogg CK, Davis KA. Hospital Variation in Geriatric Surgical Safety for Emergency Operation. Journal Of The American College Of Surgeons 2020, 230: 966-973.e10. PMID: 32032720, PMCID: PMC7409563, DOI: 10.1016/j.jamcollsurg.2019.10.018.Peer-Reviewed Original ResearchConceptsStandardized mortality ratioHospital-level characteristicsGeneral surgery operationsGeriatric patientsEmergency operationHospital variationEmergency general surgery operationsMean standardized mortality ratioCalifornia State Inpatient DatabaseHospital-based mortalitySignificant hospital variationPatients 65 yearsSubstantial excess mortalitySurgery operationsState Inpatient DatabasesMixed effects logistic regression modelsCommon general surgery operationsLow-mortality outliersLogistic regression modelsPostoperative mortalityHospital deathOlder patientsInpatient DatabaseMortality outcomesNonelective operations
2019
Association of Medicaid Expansion Policy with Outcomes in Homeless Patients Requiring Emergency General Surgery
Manzano‐Nunez R, Zogg CK, Bhulani N, McCarty JC, Herrera‐Escobar J, Lu K, Andriotti T, Uribe‐Leitz T, de Jager E, Jarman MP, Haider AH, Ortega G. Association of Medicaid Expansion Policy with Outcomes in Homeless Patients Requiring Emergency General Surgery. World Journal Of Surgery 2019, 43: 1483-1489. PMID: 30706104, DOI: 10.1007/s00268-019-04932-0.Peer-Reviewed Original ResearchConceptsEmergency general surgeryNon-expansion statesMedical adviceHomeless patientsSurgical complicationsMedicaid expansionHospital chargesGeneral surgeryLower oddsPrimary EGS diagnosesHome healthcareMultivariable logistic regressionExpansion statesLength of stayNon-Medicaid expansion statesState Inpatient DatabasesMedicaid expansion statesMultivariable quantile regressionEGS proceduresClinical eventsEGS diagnosesInpatient DatabaseHomeless individualsHigher oddsNon-significant difference
2017
The Need to Consider Longer-term Outcomes of Care
Zogg CK, Olufajo OA, Jiang W, Bystricky A, Scott JW, Shafi S, Havens JM, Salim A, Schoenfeld AJ, Haider AH. The Need to Consider Longer-term Outcomes of Care. Annals Of Surgery 2017, 266: 66-75. PMID: 28140382, DOI: 10.1097/sla.0000000000001932.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAgedBlack or African AmericanCaliforniaEmergency Service, HospitalHealthcare DisparitiesHispanic or LatinoHospital MortalityHumansIncomeInsurance CoverageInsurance, HealthLongitudinal StudiesMiddle AgedOutcome Assessment, Health CarePatient ReadmissionPostoperative ComplicationsProportional Hazards ModelsSurgical Procedures, OperativeSurvival AnalysisWhite PeopleYoung AdultConceptsLong-term outcomesNon-Hispanic blacksUnplanned readmissionMajor morbidityWhite patientsMinority patientsEthnic disparitiesEmergency general surgery patientsCalifornia State Inpatient DatabaseCox proportional hazards modelDiagnostic categoriesOlder adultsGeneral surgery patientsState Inpatient DatabasesProportional hazards modelRisk-adjusted differencesHispanic older adultsEGS patientsEGS volumeReadmission trendsSurgery patientsSurgical patientsHospital proportionInpatient DatabasePostacute phase
2016
Inequalities in Specialist Hand Surgeon Distribution across the United States
Rios-Diaz AJ, Metcalfe D, Singh M, Zogg CK, Olufajo OA, Ramos MS, Caterson EJ, Talbot SG. Inequalities in Specialist Hand Surgeon Distribution across the United States. Plastic & Reconstructive Surgery 2016, 137: 1516-1522. PMID: 27119925, DOI: 10.1097/prs.0000000000002103.Peer-Reviewed Original ResearchConceptsSpecialist hand surgeonsHand surgeonsTrauma admissionsRisk-adjusted generalized linear modelsDensity of surgeonsState Inpatient DatabasesMedical specialty databasesFellowship positionsInpatient DatabaseIndependent associationHospital specialistsTrauma careGeneral surgeonsEmergency careHealthcare costsOrthopaedic surgeonsSurgeon densitySurgeonsAdmissionPlastic surgeonsSubspecialty certificateUnited StatesSpecialty databasesAmerican BoardCareAccess to post-discharge inpatient care after lower limb trauma
Metcalfe D, Davis WA, Olufajo OA, Rios-Diaz AJ, Chaudhary MA, Harris MB, Zogg CK, Weaver MJ, Salim A. Access to post-discharge inpatient care after lower limb trauma. Journal Of Surgical Research 2016, 203: 140-144. PMID: 27338544, DOI: 10.1016/j.jss.2016.02.036.Peer-Reviewed Original ResearchConceptsLength of stayHospital LOSLower limb traumaLimb traumaInsurance statusUninsured patientsInpatient careLonger hospital LOSCalifornia State Inpatient DatabaseState Inpatient DatabasesLower limb injuriesNon-acute servicesAcute hospitalizationHospital dischargeInpatient DatabaseHospital characteristicsTrauma bedsClinical ModificationLimb injuriesObservational studyLower oddsEmergency careInternational ClassificationPatientsPrivate insurance