title: Statistical considerations for a medical data base.
abstract: Some of the special statistical problems associated with the design and analysis of observational studies arising from medical data bases are reviewed. Particular attention is given to the adequacy of the collected data to provide information from which to draw valid statistical inferences.
mesh_terms: D002986:Clinical Trials as Topic; D003625:Data Collection; D003626:Data Display; D004194:Disease / Q000209:etiology; D004812:Epidemiologic Methods; D006801:Humans; D007256:Information Systems; D008499:Medical Records; D013223:Statistics as Topic