Most of the investigations which have been carried out using the Midspan data sets have involved epidemiological analyses of cross-sectional and longitudinal data, making use of the unusually rich combination of baseline and outcome variables. A range of secondary studies has also been carried out, using the original survey data as a sampling frame, and incorporating a variety of research methods, both qualitative and quantitative, to study subgroups of interest. A feature of many studies has been collaboration between colleagues from different institutions, with different professional backgrounds and research disciplines.
Midspan has proved to be a valuable source for a wide range of research. Topics provide a detailed list.