2013
Testing for a Changepoint in the Cox Survival Regression Model
Zucker D, Agami S, Spiegelman D. Testing for a Changepoint in the Cox Survival Regression Model. Journal Of Statistical Theory And Practice 2013, 7: 360-380. DOI: 10.1080/15598608.2013.772030.Peer-Reviewed Original ResearchMaximum efficiency robust testCovariate domainSupremum-type testsTest statisticEfficiency robust testSupremum statisticsFirst author's websiteNurses' Health StudyCox survival regression modelType statisticsPower calculationCovariate effectsAuthor's websiteSimulation studySurvival regression modelsLinear combination formStandard Cox modelBest overall choicePopular modelsSimulation resultsFatal myocardial infarctionCox regression modelMATLAB softwareStatisticsRobust test
1999
Evaluation of Old and New Tests of Heterogeneity in Epidemiologic Meta-Analysis
Takkouche B, Cadarso-Suárez C, Spiegelman D. Evaluation of Old and New Tests of Heterogeneity in Epidemiologic Meta-Analysis. American Journal Of Epidemiology 1999, 150: 206-215. PMID: 10412966, DOI: 10.1093/oxfordjournals.aje.a009981.Peer-Reviewed Original ResearchConceptsParametric bootstrap versionBootstrap versionLarge simulation studyCorrect type IStatistical powerComputational easeSimulation studyIdentification of heterogeneityHypothesis testQ statisticStudy varianceLow statistical powerNull hypothesisStatisticsPoint of viewBootstrapHomogeneity testVersionPowerDecision criteriaNew testBest choiceKey featuresEffect measuresVariance