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DO CHANGING DIAGNOSTIC CRITERIA FOR GESTATIONAL DIABETES INFLUENCE PREGNANCY OUTCOME?

The incidence of pregnancy related diabetes has been steadily increasing during the past decade. The aim of this retrospective study was to evaluate the type and prevalence of gestational diabetes complications after implementing new diagnostic criteria for gestational diabetes. The incidence of gestational diabetes, maternal age, mode of delivery and birth weight were analyzed. Study patients were divided into three groups. The first group consisted of patients who gave birth during 2005, the second group during 2011 and the third group during 2012. In 2005, the World Health Organization criteria were used on diagnosing gestational diabetes, whereas in 2011 and 2012 the criteria issued by the International Association of Diabetes and Pregnancy Study Groups were considered. There was no statistically significant difference among the groups according to maternal age, birth weight (p=0.203) and mode of delivery (p=0.883). Cesarean section was performed in about 30% of deliveries in all groups combined. There was no significant difference in the number of neonatal hypertrophy (p=0.348), although the distribution of hypertrophy showed a tendency towards higher values in 2005. The incidence of gestational diabetes was 2.2% in 2005, 6.6% in 2011 and 12% in 2012. In conclusion, difference in the incidence of pregnancy related diabetes appeared to have resulted directly from using different diagnostic criteria. The new criteria contributed to a relatively higher incidence of gestational diabetes but also achieved better gestational glycemic control and consequently better fetal growth regulation.

Diabetes, gestational – diagnosis ; Fetal growth

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