Fetal macrosomia--pregnancy and delivery.

The authors have studied pregnancy, delivery and early neonatal status of macrosomic infants (> or = 4000 g) delivered between January 1, 1984, and December 31, 1992. The control group comprised age--and parity--matched pregnant women and their newborns weighing 3000 to 3999 g. From 9980 singleton pregnancies, 2021 (20.3%) macrosomics were delivered. The incidence of macrosomia was 16.7% in the primiparous group, 23.1% in the parity 2-4 group, and 28.2% in the multiparous group (parity > or = 5) (P < 0.001). The rates of macrosomic infants for pregnant adolescents (aged < or = 19 years), pregnant women aged 20-34 years and old pregnant women (> or = 35 years) were 12.0%, 20.6% and 21.5%, respectively (P < 0.001). Macrosomia was not influenced by occupation and antenatal visits (P > 0.05). The rates of > or = 16 kg weight gain in the macrosomic and control groups were 36.2% (mean 14.30 +/- 4.66 kg) and 16.7% (mean 12.18 +/- 4.82 kg), respectively (t = 12.05; P < 0.001). Of 546 pregnant women with fetal macrosomia subjected to oral GT testing, glucose intolerance was found in 20.0% and gestational diabetes in 4.8%. The rates of glucose intolerance and gestational diabetes in 259 control subjects were 13.9% and 2.3%, respectively (P < 0.05). Light (index 1-4) and moderate (index 5-7) forms of EPH gestosis were more common in the macrosomic group, whereas no difference was observed for severe forms (index > or = 8) between the groups (P > 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)