A threefold increase in gestational diabetes over two years: review of screening practices and pregnancy outcomes in Indigenous women of Cape York, Australia

Davis, Bronwyn, McLean, Anna, Sinha, Ashim, and Falhammar, Henrik (2013) A threefold increase in gestational diabetes over two years: review of screening practices and pregnancy outcomes in Indigenous women of Cape York, Australia. Australian and New Zealand Journal of Obstetrics and Gynaecology, 53 (4). pp. 363-368.

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Background: Australian Aboriginal women have a high prevalence of type 2 diabetes (T2DM) in pregnancy and gestational diabetes (GDM).

Aims: To review how screening practice affects the pregnancy data of all Indigenous women and their newborns living in Cape York, Queensland.

Methods: All medical charts of mothers and their neonates delivered in the regional hospital over two-one-year periods (2006 and 2008) were reviewed. Universal testing with an oral glucose tolerance test (OGTT) was introduced in 2007.

Results: Gestational diabetes (GDM) increased from 4.7 to 14.2%, and T2DM was similar (2.4 and 2.3%). There were 127 deliveries in 2006 and 134 in 2008. Testing rates with OGTT improved from 31.4% in 2006 to 65.6% in 2008. Mothers with diabetes in pregnancy (DIP) were older and heavier than non-DIP mothers. Caesarean section rates were significantly higher in the DIP group compared with the non-DIP group (66 vs 25%) in both time periods. The booking weight of DIP mothers decreased 16 kg, their babies normalised their weight, length and head circumference; respiratory distress and Apgar scores improved comparing the two periods. In DIP, infants >40% had hypoglycaemia; however, rates of serious complications were low. Rates of breastfeeding were similar between groups. Follow-up rates for GDM improved from 16.6% in 2006 to 31.6% in 2008. Of those tested one-third were diagnosed with T2DM.

Conclusion: The rate of GDM tripled after implementation of universal testing. Outcomes improved. There is still need for improvement in testing and follow-up practices in relation to DIP.

Item ID: 32068
Item Type: Article (Research - C1)
ISSN: 1479-828X
Keywords: aboriginal; outcomes; diabetes in pregnancy; type 2 diabetes; quality improvement
Funders: Clinical Practice Improvement Centre of Queensland Health
Date Deposited: 21 Mar 2014 00:10
FoR Codes: 11 MEDICAL AND HEALTH SCIENCES > 1117 Public Health and Health Services > 111701 Aboriginal and Torres Strait Islander Health @ 50%
11 MEDICAL AND HEALTH SCIENCES > 1114 Paediatrics and Reproductive Medicine > 111401 Foetal Development and Medicine @ 50%
SEO Codes: 92 HEALTH > 9203 Indigenous Health > 920303 Aboriginal and Torres Strait Islander Health - Health System Performance (incl. Effectiveness of Interventions) @ 50%
92 HEALTH > 9201 Clinical Health (Organs, Diseases and Abnormal Conditions) > 920104 Diabetes @ 50%
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