INS and diabetes mellitus: The 5 individuals who did not have severe IUGR showed either diabetes onset after the neonatal period or did not consistently require insulin treatment: 1 individual (patient 13) had adolescent-onset diabetes (−1.34SD), 1 (patient 11) had transient diabetes (0.14 SD), 2 individuals (7, 8) had infancy-onset diabetes (−0.9SD and −1.61SD) and 1 (patient 1) had PNDM diagnosed at 13 weeks of age which did not require insulin treatment (treated with sulphonylureas, last contact at 10 months of age) (−0.82SD).