The incidence and severity of gestational diabetes in a series of 5,199 predominantly Arab patients in Bahrain, and 2,643 of mixed racial origin in Australia were studied. Our objective was to determine the association of bariatric surgery with the incidence of GDM and related complications. Offspring born to GDM-complicated pregnancy were more prone to develop childhood obesity, impaired glucose tolerance and increased cardiovascular risk profile during adolescence and early adulthood . The age-adjusted prevalence of GDM varied by race-ethnicity and was lowest for non-Hispanic white (4.1%) and highest among Asian Indians (11.1%). Although past studies of progestational agents for the prevention of preterm delivery reported varied results, there has been renewed interest in the use of 17α-hydroxyprogesterone caproate (17P) as a secondary preterm birth prevention strategy after a recent study from the National Institute of Child Health and Human Development Maternal-Fetal Medicine Units Network (2,3). All pregnant women irrespective of gestational weeks underwent a 75 g glucose challenge test in the fasting state. The crude incidence of GDM increased from 4.1% in 1997 to 4.4% in 2009 (increased by 7.3%), and the age-standardized incidence of GDM increased from 5.8% to 7.5% (increased by 29.3%).
In a temperate coastal area of Australia these differences do not appear clinically significant and have not caused a variation in the incidence of GDM with different seasons.