The authors examine the problems of planning and conducting a multicentric case-control study on diet and gastric cancer in Italy. The solutions chosen for the study design, cases and controls identification, dietary interview, production of a common protocol for the field work are discussed. Results on the evaluation of the quality and comparability of collected data are presented. Further, compliance of cases and controls to the interview and to the blood and urine sampling with reasons of non-response are shown. Finally, the phases of the study and the methods for improving and controlling homogeneity among Centers are summarized.
|Titolo:||Methodological issues in a multicentric study of gastric cancer and diet in Italy: study design, data sources and quality controls|
DECARLI, ADRIANO (Ultimo)
|Parole Chiave:||Information Systems; Multicenter Studies as Topic; Humans; Aged; Pilot Projects; Italy; Registries; Patient Compliance; Stomach Neoplasms; Case-Control Studies; Middle Aged; Diet; Quality Control; Female; Male|
|Settore Scientifico Disciplinare:||Settore MED/01 - Statistica Medica|
|Data di pubblicazione:||31-ott-1989|
|Appare nelle tipologie:||01 - Articolo su periodico|