title: Beyond baseline data: the use of time-varying covariates.
authors.forename: Ralph B
authors.initials: RB
authors.lastname: D'Agostino
mesh_terms: D006801:Humans; D006973:Hypertension / Q000453:epidemiology* / Q000503:physiopathology*; D015233:Models, Statistical; D011379:Prognosis; D012307:Risk Factors