“…Details of self-reported ethnic origin, previous medical history and age were directly ascertained from the patients and recorded. Consistent with previous studies (Ezenwaka et al, 1997(Ezenwaka et al, , 2002 waist circumference (cm), at the level of the umbilicus with the patient standing and breathing normally, was obtained by tape measure; weight (kg) using a standard hospital balance and height (m), using a metal rule, were measured (in light clothing, without shoes). Then, a fasting blood sample was collected from each patient.…”