Diabetes and hypertension are risk factors of vascular structural and functional changes. Women with gestational diabetes and hypertensive disorders have vascular changes even after their pregnancy and long-term increased risk of diabetes and cardiovascular disease (CVD) is known. It is not known if or at what level of glycaemia below overt diabetes 'his risk starts and whether there is any difference in progression of these vascular changes in relation to Initial glycaemia. Our hypothesis was: vascular structure and / or function is affected in all areas of the vascular tree in participants with a higher glucose level (at risk group) when compared to those from the lower end of the glycaemic spectrum (control) during pregnancy and that women of South Asian origin will have worse vascular function compared with European women.