Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/76083
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Type: | Journal article |
Title: | The IDEAL study: investigation of dietary advice and lifestyle for women with borderline gestational diabetes: a randomised controlled trial - study protocol |
Author: | Crowther, C. Hague, W. Middleton, P. Baghurst, P. McPhee, A. Tran, T. Yelland, L. Ashwood, P. Han, S. Dodd, J. Robinson, J. |
Citation: | BMC Pregnancy and Childbirth, 2012; 12(106):2-8 |
Publisher: | BioMed Central Ltd. |
Issue Date: | 2012 |
ISSN: | 1471-2393 1471-2393 |
Statement of Responsibility: | Caroline A. Crowther, William M. Hague, Philippa F. Middleton, Peter A. Baghurst, Andrew J. McPhee, Thac S. Tran, Lisa N. Yelland, Pat Ashwood, Shan Han, Jodie M. Dodd and Jeffrey S. Robinson for the IDEAL Study Group |
Abstract: | BACKGROUND: The Australian Carbohydrate Intolerance Study in Pregnant Women (ACHOIS) showed that treatment of pregnant women with mild gestational diabetes mellitus is beneficial for both women and their infants. It is still uncertain whether there are benefits of similar treatment for women with borderline gestational diabetes. This trial aims to assess whether dietary and lifestyle advice and treatment given to pregnant women who screen for borderline gestational diabetes reduces neonatal complications and maternal morbidities. METHODS/DESIGN: Design: Multicentre, randomised controlled trial. Inclusion criteria: Women between 240 and 346 weeks gestation with a singleton pregnancy, a positive oral glucose challenge test (venous plasma glucose ≥7.8 mmol/L) and a normal oral 75 gram glucose tolerance test (fasting venous plasma glucose <5.5 mmol/L and a 2 hour glucose <7.8 mmol/L) with written, informed consent. Trial entry and randomisation: Women with an abnormal oral glucose tolerance test (fasting venous plasma glucose ≥5.5 mmol/L or 2 hour glucose ≥7.8 mmol/L) will not be eligible and will be offered treatment for gestational diabetes, consistent with recommendations based on results of the ACHOIS trial. Eligible women will be randomised into either the ‘Routine Care Group’ or the ‘Intervention Group’. Study groups: Women in the ‘Routine Care Group’ will receive routine obstetric care reflecting current clinical practice in Australian hospitals. Women in the ‘Intervention Group’ will receive obstetric care, which will include dietary and lifestyle advice, monitoring of blood glucose and further medical treatment for hyperglycaemia as appropriate. Primary study outcome: Incidence of large for gestational age infants. Sample size: A sample size of 682 women will be sufficient to show a 50% reduction in the risk of large for gestational age infants (alpha 0.05 two-tailed, 80% power, 4% loss to follow up) from 14% to 7% with dietary and lifestyle advice and treatment. DISCUSSION: A conclusive trial outcome will provide reliable evidence of relevance for the care of women with borderline glucose intolerance in pregnancy and their infants. TRIAL REGISTRATION: Australian New Zealand Clinical Trials Registry - ACTRN12607000174482 |
Keywords: | Borderline gestational diabetes gestational diabetes mellitus randomised controlled trial diet lifestyle large for gestational age |
Rights: | © 2012 Crowther et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
DOI: | 10.1186/1471-2393-12-106 |
Published version: | http://dx.doi.org/10.1186/1471-2393-12-106 |
Appears in Collections: | Aurora harvest Obstetrics and Gynaecology publications |
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hdl_76083.pdf | Published version | 193.61 kB | Adobe PDF | View/Open |
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