title: Impact of the new IADPSG gestational diabetes diagnostic criteria on pregnancy outcomes in Western Australia.
abstract: BACKGROUND
  There is debate as to the most appropriate diagnostic criteria to diagnose gestational diabetes mellitus (GDM). The proposed International Association of Diabetes and Pregnancy Study Groups (IADPSG) criteria have recently been endorsed by various bodies, but there remains no national consensus.
  
  
  OBJECTIVE
  To assess the perinatal outcomes of women with GDM classified according to the 1998 Australasian Diabetes in Pregnancy Society (ADIPS) criteria compared to those with GDM by the IADPSG criteria.
  
  
  METHODS
  Results of glucose tolerance tests performed between January 2011 and January 2014 were linked with the perinatal data of those who delivered singleton fetuses after 24 weeks' gestation. Analysed data included birthweight, gestational age at birth, macrosomia, mode of delivery, perinatal mortality, nursery admission, maternal body mass index, and gestational weight gain.
  
  
  RESULTS
  Of 3571 women, 466 (13%) and 559 (16%) met the criteria for the 1998 ADIPS and IADPSG criteria for GDM, respectively. Those with GDM according to the IADPSG criteria only (6%) were more obese (95% CI 2.3-4.8 kg/m(2) ), delivered neonates on average 106 g heavier (95% CI 19-193 g) and had more fetal macrosomia (18% vs 11%, P = 0.002) than those with normal glucose tolerance.
  
  
  CONCLUSIONS
  The IADPSG criteria for GDM identified a group of women at previously unrecognised increased risk of adverse perinatal outcomes. Adopting the IADPSG criteria would increase the number of women diagnosed with GDM by 20%; however, the improvements in perinatal morbidity, in addition to potential long-term benefits, may justify the increase in healthcare workload.
authors: King Edward Memorial Hospital, Subiaco, Western Australia, Australia.
authors: Aminath
authors: A
authors: Laafira
authors: School of Women's and Infants' Health, The University of Western Australia, Subiaco, Western Australia, Australia.|Women and Infants Research Foundation, King Edward Memorial Hospital, Subiaco, Western Australia, Australia.|Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, Western Australia, Australia.
authors: Scott W
authors: SW
authors: White
authors: Maternal Fetal Medicine Service, King Edward Memorial Hospital, Subiaco, Western Australia, Australia.
authors: Christopher J
authors: CJ
authors: Griffin
authors: King Edward Memorial Hospital, Subiaco, Western Australia, Australia.|School of Women's and Infants' Health, The University of Western Australia, Subiaco, Western Australia, Australia.
authors: Dorothy
authors: D
authors: Graham
mesh_terms: D000328:Adult; D016640:Diabetes, Gestational / Q000175:diagnosis* / Q000453:epidemiology; D005260:Female; D005500:Follow-Up Studies; D005951:Glucose Tolerance Test; D006801:Humans; D015994:Incidence; D007231:Infant, Newborn; D016014:Linear Models; D017410:Practice Guidelines as Topic; D011247:Pregnancy; D011256:Pregnancy Outcome; D012189:Retrospective Studies; D014904:Western Australia / Q000453:epidemiology
keywords: International Association of Diabetes and Pregnancy Study Groups; gestational diabetes mellitus; pregnancy outcomes