Ruth Keogh is a statistician and is a lecturer in the Department of Medical Statistics at the London School of Hygiene and Tropical Medicine. Ruth's interests cover a number of areas of statistical methodology and application. Her methodological interests include the design and analysis of case-control studies, missing data, and methods for correcting for the effects of exposure measurement error in epidemiological studies, especially in nutritional epidemiology. Ruth's current main applied research is on a study of the long term efficacy of the BCG vaccine against TB among young people in the UK. She has also been closely involved in epidemiological studies of associations between dietary intake and disease, and a longitudinal study of people with Huntington's Disease. Ruth became interested in Cystic Fibrosis though a collaboration with Dr Theodore Liou (University of Utah). She is is a statistical consultant for a new study, led by Dr Liou, investigating biomarkers which may be associated with disease progression in Cystic Fibrosis. She is also involved in studies of the survival of individuals with Cystic Fibrosis using data from the US Cystic Fibrosis Foundation Patient Registry. Ruth hopes to pursue much more research in this field in the future, in particular using data from patient registries in the UK, US and elsewhere. Ruth studied for an undergraduate degree in Mathematics and Statistics at the University of Edinburgh (2002), and subsequently for an MSc in Applied Statistics at the University of Oxford (2003), and a DPhil in Medical Statistics/Epidemiology also in Oxford (2007).