Professor Dianne O’Connell is a biostatistician/epidemiologist with extensive experience in designing and analysing epidemiological studies. She specialises in evidence-based health care and health services research. Since joining the Cancer Council in 2001, Dianne has headed up studies on the variation in the management and treatment of major cancers in NSW and the analysis of data from the NSW Central Cancer Registry and linked health data sets. She also leads a major research program on the impact of cancer on Aboriginal people in NSW.