2023
Mediation analysis in the presence of continuous exposure measurement error
Cheng C, Spiegelman D, Li F. Mediation analysis in the presence of continuous exposure measurement error. Statistics In Medicine 2023, 42: 1669-1686. PMID: 36869626, PMCID: PMC11320713, DOI: 10.1002/sim.9693.Peer-Reviewed Original ResearchConceptsBody mass indexExposure measurement errorPhysical activityMediation proportionHealth Professionals FollowCardiovascular disease incidenceProfessionals FollowMediation analysisMass indexCardiovascular diseaseLower riskStudy designEffect estimatesValidation study designContinuous exposureBiased effect estimatesTrue exposureMediatorsExposureValidation studyBinary outcomesHealth science studiesOutcomesRiskDisease incidence
2018
There is no impact of exposure measurement error on latency estimation in linear models
Peskoe SB, Spiegelman D, Wang M. There is no impact of exposure measurement error on latency estimation in linear models. Statistics In Medicine 2018, 38: 1245-1261. PMID: 30515870, PMCID: PMC6542365, DOI: 10.1002/sim.8038.Peer-Reviewed Original ResearchConceptsMeasurement error modelLinear measurement error modelsLeast squares estimatorStandard measurement error modelLinear modelError modelRegression coefficient estimatesLikelihood-based methodsMeasurement errorExposure measurement errorSquares estimatorWide classGeneralized linear modelMean functionStatistical modelCovariance structureError settingsNaive estimatorBody mass indexBehavioral risk factorsLatency parametersExposure-disease relationshipsPrimary disease modelTime-varying exposureCoefficient estimates
2011
Predictors of change in nutritional and hemoglobin status among adults treated for tuberculosis in Tanzania
Kawai K, Villamor E, Mugusi FM, Saathoff E, Urassa W, Bosch RJ, Spiegelman D, Fawzi WW. Predictors of change in nutritional and hemoglobin status among adults treated for tuberculosis in Tanzania. The International Journal Of Tuberculosis And Lung Disease 2011, 15: 1380-1389. PMID: 22283899, PMCID: PMC3404808, DOI: 10.5588/ijtld.10.0784.Peer-Reviewed Original ResearchMeSH KeywordsAdultAnemiaAntitubercular AgentsBiomarkersBody Mass IndexCoinfectionFemaleHealth Status IndicatorsHemoglobinsHIV InfectionsHumansLinear ModelsMaleMalnutritionMultivariate AnalysisNutritional StatusNutritional SupportProspective StudiesTanzaniaTime FactorsTreatment OutcomeTuberculosis, PulmonaryYoung AdultConceptsLow CD4 cell countsHuman immunodeficiency virusBody mass indexCD4 cell countHIV-positive patientsTB treatmentCell countPredictors of changeTB patientsHemoglobin statusHIV-negative TB patientsHIV-positive TB patientsOlder ageHIV-negative adultsHIV-negative patientsPrevious TB infectionHIV-negative participantsAdequate nutritional supportHigh viral loadProfound malnutritionTB infectionPulmonary tuberculosisNutritional recoveryNutritional supportHemoglobin levels
2004
Sexual Orientation, Health Risk Factors, and Physical Functioning in the Nurses' Health Study II
Case P, Austin SB, Hunter DJ, Manson JE, Malspeis S, Willett WC, Spiegelman D. Sexual Orientation, Health Risk Factors, and Physical Functioning in the Nurses' Health Study II. Journal Of Women's Health 2004, 13: 1033-1047. PMID: 15665660, DOI: 10.1089/jwh.2004.13.1033.Peer-Reviewed Original ResearchMeSH KeywordsAdultAlcohol DrinkingBisexualityBody Mass IndexBreast NeoplasmsCardiovascular DiseasesCross-Sectional StudiesDepressionFemaleHealth BehaviorHealth StatusHomosexuality, FemaleHumansLinear ModelsMental HealthMiddle AgedMultivariate AnalysisNurse CliniciansPrevalenceProspective StudiesRisk FactorsSmokingTime FactorsUnited StatesConceptsNurses' Health Study IIHealth Study IIBody mass indexRisk factorsHealth risk factorsHigh prevalenceRegion of residenceOverall cohortBreast cancerHealth statusHigher daily alcohol intakeCardiovascular disease risk factorsBreast cancer risk factorsHigher body mass indexStudy IIMultivariate prevalence ratiosDaily alcohol intakeDisease risk factorsUse of antidepressantsCancer risk factorsHealth-related functioningImportant risk factorMental health statusPoor mental healthBisexual women
2003
Alcohol Consumption Patterns and HbA1c, C-Peptide and Insulin Concentrations in Men
Meyer KA, Conigrave KM, Chu NF, Rifai N, Spiegelman D, Stampfer MJ, Rimm EB. Alcohol Consumption Patterns and HbA1c, C-Peptide and Insulin Concentrations in Men. Journal Of The American Nutrition Association 2003, 22: 185-194. PMID: 12805244, DOI: 10.1080/07315724.2003.10719292.Peer-Reviewed Original ResearchConceptsC-peptideInsulin concentrationsAverage alcohol consumptionAlcohol consumptionAlcohol consumption patternsBlood samplesStudy participantsDrinking patternsDisease-free menC-peptide concentrationsModerate alcohol consumptionCross-sectional studyYears of ageFrequent alcohol consumptionFrequency of consumptionEffects of alcoholInsulin levelsBiologic markersInsulin sensitivityInverse associationAverage daily consumptionIrregular drinkersObservational studyAnalysis of insulinHealth professionals
2002
Role of cytokines and testosterone in regulating lean body mass and resting energy expenditure in HIV-infected men
Roubenoff R, Grinspoon S, Skolnik PR, Tchetgen E, Abad L, Spiegelman D, Knox T, Gorbach S. Role of cytokines and testosterone in regulating lean body mass and resting energy expenditure in HIV-infected men. AJP Endocrinology And Metabolism 2002, 283: e138-e145. PMID: 12067854, DOI: 10.1152/ajpendo.00426.2001.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAntiretroviral Therapy, Highly ActiveBody CompositionBody WeightCD4 Lymphocyte CountCytokinesEnergy MetabolismFollow-Up StudiesHIV InfectionsHIV Wasting SyndromeHumansInterleukin-1Linear ModelsLongitudinal StudiesMaleMiddle AgedNutritional StatusRestTestosteroneThinnessTumor Necrosis Factor-alphaViral LoadConceptsLBM lossPeripheral blood mononuclear cellsIL-1 beta productionWeight lossActive antiretroviral therapyCohort of patientsSerum free testosteroneBlood mononuclear cellsInadequate dietary intakeOngoing cohort studyCytokine tumor necrosisRole of cytokinesIL-1 betaTNF-alpha productionInterleukin-1 betaMo of observationLean body massKcal/dayAntiretroviral therapyCohort studyFree testosteroneHIV infectionIndependent predictorsCytokine productionMononuclear cellsHIV status and sociodemographic correlates of maternal body size and wasting during pregnancy
Villamor E, Msamanga G, Spiegelman D, Coley J, Hunter D, Peterson K, Fawzi W. HIV status and sociodemographic correlates of maternal body size and wasting during pregnancy. European Journal Of Clinical Nutrition 2002, 56: 415-424. PMID: 12001012, DOI: 10.1038/sj.ejcn.1601328.Peer-Reviewed Original ResearchConceptsWeeks of gestationHIV infectionHIV statusPregnant womenFirst prenatal visitSocioeconomic statusSignificant risk factorsCross-sectional studyLow socioeconomic statusLevel of educationMean MUACAntenatal clinicMaternal heightPrenatal visitUninfected mothersSecond trimesterMaternal ageOverall prevalenceRisk factorsChild healthMother's ageMultivariate analysisFogarty International CenterSociodemographic correlatesBMI
2000
Leisure-Time Physical Activity, Television Watching, and Plasma Biomarkers of Obesity and Cardiovascular Disease Risk
Fung TT, Hu FB, Yu J, Chu NF, Spiegelman D, Tofler GH, Willett WC, Rimm EB. Leisure-Time Physical Activity, Television Watching, and Plasma Biomarkers of Obesity and Cardiovascular Disease Risk. American Journal Of Epidemiology 2000, 152: 1171-1178. PMID: 11130623, DOI: 10.1093/aje/152.12.1171.Peer-Reviewed Original ResearchConceptsLeisure-time physical activityDensity lipoprotein cholesterolPhysical activityCVD riskLipoprotein cholesterolHDL cholesterolCardiovascular diseaseTelevision watchingLong-term leisure-time physical activityHigh-density lipoprotein cholesterolLow-density lipoprotein cholesterolLong-term physical activityMale health professionalsBiomarkers of obesityCardiovascular disease riskBlood lipidsThrombogenic factorsLeptin levelsInsulin sensitivityC-peptideApolipoprotein A1Vigorous activityLinear regression analysisBiochemical markersHealth professionalsDietary fat intake and endogenous sex steroid hormone levels in postmenopausal women.
Holmes M, Spiegelman D, Willett W, Manson J, Hunter D, Barbieri R, Colditz G, Hankinson S. Dietary fat intake and endogenous sex steroid hormone levels in postmenopausal women. Journal Of Clinical Oncology 2000, 18: 3668-76. PMID: 11054440, DOI: 10.1200/jco.2000.18.21.3668.Peer-Reviewed Original ResearchConceptsDietary fat intakeFat intakePostmenopausal womenInverse associationHormone levelsSex steroid hormone levelsHealthy postmenopausal womenTotal fat intakeFood frequency questionnaireEndogenous estrogen levelsBreast cancer riskOmega-3 fatsSex steroid hormonesCross-sectional associationsSteroid hormone levelsPercentage of energyEstradiol levelsEstrogen levelsPlasma sex steroidsPlasma levelsSex steroidsCancer riskProtein intakeEnergy intakeSteroid hormonesEfficient regression calibration for logistic regression in main study/internal validation study designs with an imperfect reference instrument
Spiegelman D, Carroll R, Kipnis V. Efficient regression calibration for logistic regression in main study/internal validation study designs with an imperfect reference instrument. Statistics In Medicine 2000, 20: 139-160. PMID: 11135353, DOI: 10.1002/1097-0258(20010115)20:1<139::aid-sim644>3.0.co;2-k.Peer-Reviewed Original Research
1998
Alcohol and Breast Cancer in Women: A Pooled Analysis of Cohort Studies
Smith-Warner SA, Spiegelman D, Yaun SS, van den Brandt PA, Folsom AR, Goldbohm RA, Graham S, Holmberg L, Howe GR, Marshall JR, Miller AB, Potter JD, Speizer FE, Willett WC, Wolk A, Hunter DJ. Alcohol and Breast Cancer in Women: A Pooled Analysis of Cohort Studies. JAMA 1998, 279: 535-540. PMID: 9480365, DOI: 10.1001/jama.279.7.535.Peer-Reviewed Original ResearchConceptsInvasive breast cancerAlcohol intakeBreast cancerAlcohol consumptionRelative riskIncident invasive breast cancerMultivariate-adjusted relative riskIncident breast cancer casesBeverage-specific alcohol consumptionMultivariate relative riskTotal alcohol intakeFood frequency questionnaireBreast cancer incidenceBreast cancer riskBreast cancer casesRandom-effects modelLong-term intakeCohort studyFrequency questionnaireProspective studyPooled analysisCancer incidenceDiet assessment instrumentsCancer casesNondietary factors
1995
Reproducibility of plasma hormone levels in postmenopausal women over a 2-3-year period.
Hankinson SE, Manson JE, Spiegelman D, Willett WC, Longcope C, Speizer FE. Reproducibility of plasma hormone levels in postmenopausal women over a 2-3-year period. Cancer Epidemiology Biomarkers & Prevention 1995, 4: 649-54. PMID: 8547832.Peer-Reviewed Original ResearchConceptsSex hormone-binding globulinIntraclass correlation coefficientPlasma hormone levelsPostmenopausal womenBioavailable estradiolPlasma levelsFree estradiolHormone levelsHealthy postmenopausal womenHormone-binding globulinLow intraclass correlation coefficientsPostmenopausal hormonesPlasma estrogenPlasma hormonesEstrone sulfateAge 51Blood samplesEstradiolWomenHormoneAndrostenedioneProlactinAgeSample collectionMenopause