Development and evaluation of an online questionnaire to identify women at high and low risk of developing gestational diabetes mellitus

Abstract Background Established risk factors for Gestational Diabetes Mellitus (GDM) include age, ethnicity, family history of diabetes and previous GDM. Additional significant influences have recently been demonstrated in the literature. The oral glucose tolerance test (OGTT) used for GDM diagnosis...

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Main Authors: Daria Di Filippo, Chloe Bell, Melissa Han Yiin Chang, Justine Darling, Amanda Henry, Alec Welsh
Format: Article
Language:English
Published: BMC 2022-04-01
Series:BMC Pregnancy and Childbirth
Subjects:
Online Access:https://doi.org/10.1186/s12884-022-04629-8
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author Daria Di Filippo
Chloe Bell
Melissa Han Yiin Chang
Justine Darling
Amanda Henry
Alec Welsh
author_facet Daria Di Filippo
Chloe Bell
Melissa Han Yiin Chang
Justine Darling
Amanda Henry
Alec Welsh
author_sort Daria Di Filippo
collection DOAJ
description Abstract Background Established risk factors for Gestational Diabetes Mellitus (GDM) include age, ethnicity, family history of diabetes and previous GDM. Additional significant influences have recently been demonstrated in the literature. The oral glucose tolerance test (OGTT) used for GDM diagnosis has sub-optimal sensitivity and specificity, thus often results in GDM misdiagnoses. Comprehensive screening of risk factors may allow more targeted monitoring and more accurate diagnoses, preventing the devastating consequences of untreated or misdiagnosed GDM. We aimed to develop a comprehensive online questionnaire of GDM risk factors and triangulate it with the OGTT and continuous glucose monitoring (CGM) parameters to better evaluate GDM risk and diagnosis. Methods Pregnant women participating in two studies on the use of CGM for GDM were invited to complete the online questionnaire. A risk score, based on published literature, was calculated for each participant response and compared with the OGTT result. A total risk score (TRS) was then calculated as a normalised sum of all risk factors. Triangulation of OGTT, TRS and CGM score of variability (CGMSV) was analysed to expand evaluation of OGTT results. Results Fifty one women completed the questionnaire; 29 were identified as ‘high-risk’ for GDM. High-risk ethnic background (p < 0.01), advanced age, a family diabetic history (p < 0.05) were associated with a positive OGTT result. The triangulation analysis (n = 45) revealed six (13%) probable misdiagnoses (both TRS and CGMSV discordant with OGTT), consisting of one probable false positive and five probable false negative by OGTT results. Conclusions This study identified pregnant women at high risk of developing GDM based on an extended evaluation of risk factors. Triangulation of TRS, OGTT and CGMSV suggested potential misdiagnoses of the OGTT. Future studies to explore the correlation between TRS, CGMSV and pregnancy outcomes as well as additional GDM pregnancy biomarkers and outcomes to efficiently evaluate OGTT results are needed.
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spelling doaj.art-eaad748d795e4451bb3e1d23d21562fe2022-12-22T02:55:57ZengBMCBMC Pregnancy and Childbirth1471-23932022-04-0122111110.1186/s12884-022-04629-8Development and evaluation of an online questionnaire to identify women at high and low risk of developing gestational diabetes mellitusDaria Di Filippo0Chloe Bell1Melissa Han Yiin Chang2Justine Darling3Amanda Henry4Alec Welsh5School of Women’s and Children’s Health, University of New South WalesSchool of Women’s and Children’s Health, University of New South WalesSchool of Women’s and Children’s Health, University of New South WalesDiabetes Clinic, Royal Hospital for WomenSchool of Women’s and Children’s Health, University of New South WalesSchool of Women’s and Children’s Health, University of New South WalesAbstract Background Established risk factors for Gestational Diabetes Mellitus (GDM) include age, ethnicity, family history of diabetes and previous GDM. Additional significant influences have recently been demonstrated in the literature. The oral glucose tolerance test (OGTT) used for GDM diagnosis has sub-optimal sensitivity and specificity, thus often results in GDM misdiagnoses. Comprehensive screening of risk factors may allow more targeted monitoring and more accurate diagnoses, preventing the devastating consequences of untreated or misdiagnosed GDM. We aimed to develop a comprehensive online questionnaire of GDM risk factors and triangulate it with the OGTT and continuous glucose monitoring (CGM) parameters to better evaluate GDM risk and diagnosis. Methods Pregnant women participating in two studies on the use of CGM for GDM were invited to complete the online questionnaire. A risk score, based on published literature, was calculated for each participant response and compared with the OGTT result. A total risk score (TRS) was then calculated as a normalised sum of all risk factors. Triangulation of OGTT, TRS and CGM score of variability (CGMSV) was analysed to expand evaluation of OGTT results. Results Fifty one women completed the questionnaire; 29 were identified as ‘high-risk’ for GDM. High-risk ethnic background (p < 0.01), advanced age, a family diabetic history (p < 0.05) were associated with a positive OGTT result. The triangulation analysis (n = 45) revealed six (13%) probable misdiagnoses (both TRS and CGMSV discordant with OGTT), consisting of one probable false positive and five probable false negative by OGTT results. Conclusions This study identified pregnant women at high risk of developing GDM based on an extended evaluation of risk factors. Triangulation of TRS, OGTT and CGMSV suggested potential misdiagnoses of the OGTT. Future studies to explore the correlation between TRS, CGMSV and pregnancy outcomes as well as additional GDM pregnancy biomarkers and outcomes to efficiently evaluate OGTT results are needed.https://doi.org/10.1186/s12884-022-04629-8Gestational diabetes mellitusQuestionnaireOral glucose tolerance testRisk factorsScreening, continuous glucose monitoring
spellingShingle Daria Di Filippo
Chloe Bell
Melissa Han Yiin Chang
Justine Darling
Amanda Henry
Alec Welsh
Development and evaluation of an online questionnaire to identify women at high and low risk of developing gestational diabetes mellitus
BMC Pregnancy and Childbirth
Gestational diabetes mellitus
Questionnaire
Oral glucose tolerance test
Risk factors
Screening, continuous glucose monitoring
title Development and evaluation of an online questionnaire to identify women at high and low risk of developing gestational diabetes mellitus
title_full Development and evaluation of an online questionnaire to identify women at high and low risk of developing gestational diabetes mellitus
title_fullStr Development and evaluation of an online questionnaire to identify women at high and low risk of developing gestational diabetes mellitus
title_full_unstemmed Development and evaluation of an online questionnaire to identify women at high and low risk of developing gestational diabetes mellitus
title_short Development and evaluation of an online questionnaire to identify women at high and low risk of developing gestational diabetes mellitus
title_sort development and evaluation of an online questionnaire to identify women at high and low risk of developing gestational diabetes mellitus
topic Gestational diabetes mellitus
Questionnaire
Oral glucose tolerance test
Risk factors
Screening, continuous glucose monitoring
url https://doi.org/10.1186/s12884-022-04629-8
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