This subject explores the principles, theories and practice of epidemiology. Students are provided with a comprehensive introduction to the collection and interpretation of epidemiological data within the framework of health, health care delivery and human services. The subject content covers the broad areas of disease distribution, study design, basic quantitative measures, causality, interpretation of data and critical appraisal of the literature. These concepts are explored in the context of contemporary health and health care issues such as non-communicable diseases, cancer screening, mental health, domestic violence, disability and drug and alcohol addiction. The subject focuses on the development of essential skills for logical and scientific assessment and evaluation of the literature. Critical thinking, scientific and analytical competencies are emphasized throughout this subject which builds core skills essential to health and health services research, planning and evaluation of programs and policy formulation.