In 2003, the NSW Department of Health, in conjunction with the 17 area health services, completed the second year of the NSW Continuous Health Survey, an ongoing survey of the health of people in NSW using computer assisted telephone interviewing (CATI). The main aims of the NSW Continuous Health Survey are to provide detailed information on the health of the people of NSW, and to support the planning, implementation, and evaluation of health services and programs in NSW. This report describes the New South Wales Adult Health Survey 2003, a major activity of the NSW Continuous Health Survey.