Jingchen Liang
he/him/his
BiostatisticianCards
About
Research
Publications
2026
Benchmarking weighted estimates of social determinants of Health in the National Health and Aging Trends Study (NHATS)
Gill T, Leo-Summers L, Liang J, Becher R, Kind A, Zang E. Benchmarking weighted estimates of social determinants of Health in the National Health and Aging Trends Study (NHATS). The Journals Of Gerontology Series A 2026, 81: glag037. PMID: 41692958, PMCID: PMC12928736, DOI: 10.1093/gerona/glag037.Peer-Reviewed Original Research
2025
Response to Freedman and Schrack: drawing inferences about Medicare mortality from the National Health and Aging Trends Study
Gill T, Liang J, Davis-Plourde K. Response to Freedman and Schrack: drawing inferences about Medicare mortality from the National Health and Aging Trends Study. The Journals Of Gerontology Series A 2025, 81: glaf248. PMID: 41482503, DOI: 10.1093/gerona/glaf248.Peer-Reviewed Original ResearchLosses to Follow‐Up in a Nationally Representative Study of Community‐Living Older Americans: Two Approaches to Censoring and Implications for Mortality Outcomes
Gill T, Liang J, Becher R, Davis‐Plourde K. Losses to Follow‐Up in a Nationally Representative Study of Community‐Living Older Americans: Two Approaches to Censoring and Implications for Mortality Outcomes. Journal Of The American Geriatrics Society 2025, 74: 186-192. PMID: 40928486, PMCID: PMC12833708, DOI: 10.1111/jgs.70093.Peer-Reviewed Original ResearchNational Health and Aging Trends StudyNationally Representative StudyMedicare dataIncomplete ascertainmentIncidence rate ratiosAscertainment of mortalityAll-Cause MortalityTrends StudyOlder AmericansRate ratiosMortality outcomesMedicareParticipantsCohortInterviewsMortalitySensitive filesNondecedentsPotential trade-offsComparison of Regimens Used for Allogeneic Matched Related Donor Hematopoietic Cell Transplantation for Sickle Cell Disease
Prior D, Liang J, Deng Y, Shah N, Flagg A, Krishnamurti L. Comparison of Regimens Used for Allogeneic Matched Related Donor Hematopoietic Cell Transplantation for Sickle Cell Disease. Transplantation And Cellular Therapy 2025, 31: 594.e1-594.e13. PMID: 40379050, DOI: 10.1016/j.jtct.2025.05.004.Peer-Reviewed Original ResearchGraft-versus-host diseaseHematopoietic cell transplantationHLA-matched related donorSickle cell diseaseConditioning regimen intensityAnti-thymocyte globulinEFS ratesConditioning regimensRegimen intensityCell transplantationRate of chronic graft-versus-host diseaseRelated donorsChronic graft-versus-host diseaseHematopoietic cell transplantation regimensNon-myeloablative conditioning regimensAllogeneic hematopoietic cell transplantationCell diseaseComparison of regimensMyeloablative conditioning regimensNon-myeloablative conditioningNon-myeloablative regimensSickle cell disease patientsEvent-free survivalGraft-versus-hostAnti-thymocyteIncomplete Ascertainment of Mortality in a Nationally Representative Longitudinal Study of Community-Living Older Americans
Gill T, Liang J, Vander Wyk B, Leo-Summers L, Wang Y, Becher R, Davis-Plourde K. Incomplete Ascertainment of Mortality in a Nationally Representative Longitudinal Study of Community-Living Older Americans. The Journals Of Gerontology Series A 2025, 80: glaf014. PMID: 39823281, PMCID: PMC12269764, DOI: 10.1093/gerona/glaf014.Peer-Reviewed Original ResearchNational Health and Aging Trends StudyAscertainment of mortalityIncomplete ascertainmentLongitudinal studies of older personsStudy of older personsNationally representative longitudinal studyIncidence rate ratiosLoss to follow-upMortality incidence ratesYear of deathLongitudinal studyRepresentative longitudinal studyCommunity-livingTrends StudyOlder personsRecommended strategiesMedicare dataRate ratiosCumulative mortality rateIncidence rateResults of longitudinal analysesAscertainmentEvaluate mortalityLongitudinal analysisDecedents
2024
Neighborhood Disadvantage in a Nationally Representative Sample of Community-Living Older US Adults
Gill T, Leo-Summers L, Vander Wyk B, Becher R, Liang J. Neighborhood Disadvantage in a Nationally Representative Sample of Community-Living Older US Adults. JAMA Network Open 2024, 7: e2450332. PMID: 39666339, PMCID: PMC11638794, DOI: 10.1001/jamanetworkopen.2024.50332.Peer-Reviewed Original ResearchConceptsNational Health and Aging Trends StudyCommunity-living older adultsNationally Representative SampleNon-Hispanic blacksNeighborhood disadvantageSocioeconomic deprivationOlder adultsIndividual-level socioeconomic characteristicsLong-term mortalityIndicators of socioeconomic deprivationNon-Hispanic white individualsNon-Hispanic white participantsRepresentative sampleCohort studySocioeconomic characteristicsCommunity-living personsNeighborhood socioeconomic disadvantageArea Deprivation IndexOlder US adultsGeriatric characteristicsPopulation-based estimatesAscertainment of mortalityHigher education levelCensus block levelHigh school diplomaIncidence and risk factors of pain crisis after hematopoietic cell transplantation for sickle cell disease
Krishnamurti L, Liang J, He Z, Deng Y, Nallagatla V, Hamidi R, Flagg A, Shah N. Incidence and risk factors of pain crisis after hematopoietic cell transplantation for sickle cell disease. Blood Advances 2024, 8: 1908-1919. PMID: 38324722, PMCID: PMC11021890, DOI: 10.1182/bloodadvances.2023010749.Peer-Reviewed Original ResearchHematopoietic cell transplantationSickle cell diseaseVaso-occlusive episodesPainful crisesCell transplantationPost-HCTGraft failureBefore HCTEvent-free survivalOverall survivalPain syndromePatient agePatient-centered outcomesAlternative donorsIncreased riskCell diseaseRisk factorsNatural historyPatientsLogistic regressionPainTransplantationSurvivalAgeAGVHDIn‐person validation of the Ichthyosis Scoring System
Echeandia‐Francis C, Sun Q, Asch S, Bayart C, Benjamin L, Cipriano S, Craiglow B, Dyer J, Levy M, Lilly E, Newell B, Liang J, Gan G, Deng Y, Paller A, Choate K. In‐person validation of the Ichthyosis Scoring System. Pediatric Dermatology 2024, 41: 247-252. PMID: 38234066, DOI: 10.1111/pde.15508.Peer-Reviewed Original ResearchInterrater intraclass correlation coefficientsIntrarater reliabilityIn-personIntraclass correlation coefficientIn-person evaluationContent validityInterrater reliabilityHeterogeneous group of skin disordersGroup of skin disordersIntraraterMedical professionalsInterrater agreementErythema evaluationIchthyosis subtypesPhotographic evaluationErythema scoreInterraterErythemaQuantify severitySkin disordersClinical utilityIchthyosisScoring systemHeterogeneous groupCorrelation coefficient
2023
Risk of SARS‐CoV‐2 following joint and epidural corticosteroid injections: A retrospective study
Raju R, Holder E, Dundas M, Liang J, Donham R. Risk of SARS‐CoV‐2 following joint and epidural corticosteroid injections: A retrospective study. Pain Practice 2023, 24: 472-482. PMID: 37994676, DOI: 10.1111/papr.13321.Peer-Reviewed Original ResearchPCR positivity ratesCharlson Comorbidity IndexInjection groupPositivity rateCS injectionsControl groupCorticosteroid injectionSevere comorbiditiesPolymerase chain reaction positivitySARS-CoV-2 PCREpidural corticosteroid injectionsRetrospective chart reviewTertiary care centerCohort of patientsSignificant disease burdenCoronavirus disease 2019 (COVID-19) pandemicSignificant higher rateSARS-CoV-2Disease 2019 pandemicMultivariate regression analysisComorbidity indexPatients 18Chart reviewRetrospective studyImmunosuppressive effects
2021
Gradient Descent and Newton's Method with Backtracking Line Search in Linear Regression
Liang J. Gradient Descent and Newton's Method with Backtracking Line Search in Linear Regression. 2021, 00: 394-397. DOI: 10.1109/cds52072.2021.00073.Peer-Reviewed Original ResearchBacktracking line searchLine searchNewton methodBacktracking line search methodLine search methodEfficiency of optimization algorithmsOptimization algorithmSupervised machine learningRegression problemIteration stepNewtonGradient descentExecution timeMachine learningRate alphaOptimal parameter valuesSearch methodParameter valuesAlgorithmLearningSearchIteration