What we've done and what we've found
The GMS was set up to find out why some babies don't grow as well as they are expected to. Over time, the study has changed to look at how children grow and develop and the things that contribute to their health. Gateshead mothers who gave birth in particular weeks between June 1999 and May 2000 were invited to take part. 1011 mums joined the study; this included 18 sets of twins, so 1029 babies are in the GMS cohort. We have since measured the children several times and parents have answered lots of questionnaires, each with a different focus.