title: A method to evaluate changes in prognostic status during follow-up, illustrated by an assessment of the effect of a rebleed in patients with oesophageal variceal bleeding.
abstract: A BASIC computer program to assess the time-dependent prognostic status of patients in follow-up studies is described. At each point in time, patients should be in one of two mutually exclusive conditions of interest, e.g. some biochemical measurement is within normal limits or not. The method is applied to data from a clinical study to investigate the prognostic effect of a rebleed in cases with oesophageal variceal bleeding.
authors: Department of Biostatistics, Erasmus University, Rotterdam, The Netherlands.
authors: W C
authors: WC
authors: Hop
authors: H R
authors: HR
authors: van Buuren
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D004932:Esophageal and Gastric Varices / Q000401:mortality* / Q000628:therapy; D005069:Evaluation Studies as Topic; D005260:Female; D005500:Follow-Up Studies; D006471:Gastrointestinal Hemorrhage / Q000401:mortality* / Q000628:therapy; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011381:Programming Languages; D012008:Recurrence; D012189:Retrospective Studies; D012597:Sclerosing Solutions / Q000627:therapeutic use; D012984:Software
chemical_list: D012597:Sclerosing Solutions