Sample size and power for a logrank test and Cox proportional hazards model with multiple groups and strata, or a quantitative covariate with multiple strata

Statistics in Medicine

Volumn 32, Issue 25, 2013, Pages 4413-4425

  Lachin, John M ^a  

^a GEORGE WASHINGTON UNIVERSITY   (United States)

Author keywords

Cox proportional hazards model; Exponential survival; Interactions; Logrank test; Multiple groups; Power; Sample size; Stratified analysis

Indexed keywords

ANTIDIABETIC AGENT; GLUCOSE BLOOD LEVEL;

ANALYSIS OF VARIANCE; ARTICLE; CONTRAST BASED TEST; COX PROPORTIONAL HAZARDS MODEL; DATA ANALYSIS; DIABETES MELLITUS; DRUG EFFICACY; FOLLOW UP; GLUCOSE BLOOD LEVEL; HUMAN; LACHIN FOULKES EXPONENTIAL MODEL; LOGRANK TEST; MANTEL LOGRANK TEST; MATHEMATICAL PARAMETERS; NON INSULIN DEPENDENT DIABETES MELLITUS; NONLINEAR SYSTEM; SAMPLE SIZE; SCORING SYSTEM; STATISTICAL ANALYSIS; STATISTICAL MODEL; STRATIFIED ADJUSTED ANALYSIS; STUDY DESIGN; CHI SQUARE DISTRIBUTION; CLINICAL TRIAL (TOPIC); DIABETES MELLITUS, TYPE 2; DRUG EFFECTS; PROCEDURES; PROPORTIONAL HAZARDS MODEL; STANDARDS; TREATMENT OUTCOME;

ANALYSIS OF VARIANCE; BLOOD GLUCOSE; CHI-SQUARE DISTRIBUTION; CLINICAL TRIALS AS TOPIC; DIABETES MELLITUS, TYPE 2; HUMANS; HYPOGLYCEMIC AGENTS; LIKELIHOOD FUNCTIONS; PROPORTIONAL HAZARDS MODELS; SAMPLE SIZE; TREATMENT OUTCOME;

EID: 84885185989     PISSN: 02776715     EISSN: 10970258     Source Type: Journal    
DOI: 10.1002/sim.5839     Document Type: Article

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