Statistics are an important source of information in public health. Data is produced by numerous agencies and associations. The following are some good places to start:
National Center for Health Statistics -This resource from the CDC provides U.S. health statistics. Areas covered include diseases, births, aging, and mortality. Sections include: the National Health Care Surveys, the National Health Interview Survey, the National Health and Nutrition Examination Survey, and the National Vital Statistics System.
The Statistical Abstract of the United States. Although this resource covers many subjects, it is an important source of basic health statistics in the U.S. The subject area "Health & Nutrition" covers Food Consumption and Nutrition, Health Care Resources, Health Care Utilization, Health Conditions, Diseases, Health Expenditures, Health Insurance and Health Risk Factors. This annual publication is available online from present, back to 1878 (click the 'Earlier Editions" tab).
WHO - Statistical Information System (WHOSIS). The World Health Organization provides the World Health Statistics Report, as well as indicator definitions and metadata.
World Health Statistics. The World Health Organization offers this resource from 2005-2010. Older years back to 1962 are in the Science Library (call number Science Library /Oversized *RA 651 A485, lower level).
IHME (Institute for Health Metrics and Evaluation) offers a wealth of health information on the United States and Internationally. This information includes country health profiles, data visualization, and U.S. data, as well as information by topic.