Epidemiological data can be gathered with world wide web

doi:10.1136/bmj.316.7124.72

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Gunther Eysenbach, Medical doctor (eysenbach@derma.med.uni-erlangen.de)a,
Thomas L Diepgen, Consultant physician (diepgen@denna.med.uni-erlangen.de)a

^a University Hospital Erlangen, Department of Dermatology, Unit of Medical Informatics, Epidemiology and Public Health, 91052 Erlangen, Germany

Editor—In their note, “Piloting patient attitudinal surveys on the web” Suchard et al rightly point out that the web is a powerful resource to use in developing surveys quickly and effectively.1 But the power of the web goes far beyond that. Psychologists and sociologists are already using the web for surveys,2 and there has also been a recent experiment to collect health status information for medical outcomes research with a web based questionnaire.3

The web …