"This popular book introduces the principles, methods and application of epidemiology for improving health and survival. The book assists readers in applying basic epidemiological methods to measure health outcomes, identifying risk factors for a negative outcome, and evaluating health interventions and health services. The book also helps to distinguish between strong and poor epidemiological evidence; an ability that is fundamental to promoting evidence-based health care. This new edition has been carefully updated with a more examples and activities that encourage application of principles to a range of disciplines." -- Provided by publisher.