Italian multicenter case-control study of clinically diagnosed Alzheimer disease: strategies and instruments for data collection.
Instruments and methods used for data collection in the Italian multicenter case-control study of clinically diagnosed Alzheimer disease are illustrated. Details of design of the questionnaire, choice and training of the interviewers, choice of the respondent, and assessment of the quality of data collected are discussed. The text of the questionnaire is included.
D000544:Alzheimer Disease / Q000175:diagnosis* / Q000523:psychology; D003625:Data Collection; D006801:Humans; D007406:Interview, Psychological; D012306:Risk