Conclusions: This research reports the association between blood group system and macrosomia as well as parental age and GDM simultaneously.

Pediatr Int. 2010 Jul 4. [Epub ahead of print]

MACROSOMIA, TOP OF THE ICEBERG: THE CHARM OF UNDERLYING FACTORS.
Donma MM.

DEPARTMENT OF NEONATOLOGY UNIT, PEDIATRICS CLINICS, MINISTRY OF HEALTH, SULEYMANIYE MATERNITY AND CHILDREN'S DISEASES EDUCATION AND RESEARCH HOSPITAL, ISTANBUL, TURKEY.

Abstract
Background: Macrosomia is associated with childhood obesity. Gestational diabetes mellitus(GDM) is a risk factor for macrosomia. The aim of this large scaled investigation is to determine the incidence, risk factors, characteristic features, and perinatal outcome of macrosomic infants. Methods: This prospective study was carried out on 6,385 newborns. Demographic data included maternal age, paternal age, type of delivery, sex, parity and gestational age at delivery. Anthropometric measurements were recorded. ABO/Rh typing was performed and GDM was diagnosed. Results: Out of 6,385 term deliveries, 477 infants(7.47%) were macrosomic. Incidence of GDM was 0.6% and 4.8% in control group and among macrosomic births, respectively. Incidence of GDM(+) cases was 4% among macrosomic infants weighing 4000 g. < n < 4500 g. GDM(+) cases were densely populated(11%), among macrosomic infants weighing >/=4500 g.(p /=4500 g. than those weighing 4000 g. < n < 4500 g.(p
PMID: 20626633 [PubMed - as supplied by publisher]