Information in regards to the highest instructional qualification was collected inside the first interview. Thereafter (e.g. within the follow-up interviews) all participants had been requested whether they had engaged in further education, and if so what. Participants could select one out of seven classes ranging from no qualification to larger education with diploma. We recoded the seven classes into larger educated (NVQ2/GCE or higher) and decrease educated (no qualification or NVQ1/CSE). The anthropometric measures body weight and top have been…