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BACKGROUND: A relationship between reduced fetal growth and the polycystic ovary syndrome (PCOS) has been proposed in girls with PCOS. However, the birth weight in the offspring of PCOS mothers has not been systematically investigated. The aim of this study was to establish the birth weight of newborns of mothers with PCOS and to compare it with a control group of newborns of normal women matched by age and weight at the beginning of pregnancy. METHODS: The birth weight of 47 infants born from singleton pregnancies in women with well-documented PCOS was compared with 180 infants born from singleton pregnancies in healthy controls. RESULTS: The prevalence of small for gestational age (SGA) infants was significantly higher in the PCOS group compared to the control group (12.?8% versus 2.8%, respectively, P<0.02). Moreover, SGA infants born to PCOS mothers were smaller than those born to control mothers (P<0.05). The prevalence of large for gestational age infants (LGA) was similar in both groups, but birth length of LGA newborns was greater in PCOS women than controls (P<0.05). CONCLUSIONS: PCOS mothers showed a significantly higher prevalence of SGA newborns which cannot be completely attributed to pregnancy complications, and seems to be more related to the PCOS condition of the mother. [ABSTRACT FROM AUTHOR]

: BACKGROUND We aimed to evaluate the serum adiponectin and lipid concentrations in normal and polycystic ovary syndrome (PCOS) women during pregnancy in order to establish whether PCOS induces abnormal lipid and adiponectin levels that could constitute potential metabolic risk factors for pregnancy complications. : METHODS Women with singleton pregnancies and of similar age were included (48 pregnant PCOS and 51 normal pregnant women). During gestational weeks 10–16 and 22–28, a 2 h, 75 g oral glucose tolerance test was performed, with measurement of glucose and insulin in each sample. Adiponectin and lipid concentrations were determined in the fasting sample. : RESULTS The incidence of gestational diabetes mellitus (GDM) was significantly higher in the PCOS group (12.2%) compared with the control group (2%). In PCOS patients, triglyceride (TG) concentrations and area under the curve of glucose and insulin were higher in both study periods and adiponectin concentrations were significantly lower in the second period, compared with normal women. Moreover, adiponectin concentrations were lower in women with GDM than in those with normal glucose tolerance in the two study periods. CONCLUSION: Low adiponectin and high insulin levels are associated with GDM in pregnant PCOS patients. High TG levels seem not to be directly related to pregnancy complications in these patients. [ABSTRACT FROM AUTHOR]