Document Detail

Diagnosis of gestational diabetes mellitus: is it time for a new critical value?
MedLine Citation:
PMID:  17694961     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To identify the value for the 1-hour glucose tolerance test (GTT) that would maintain 100%, 90% and 75% sensitivity for identifying abnormal 3-hour GTT results in prenatal patients from an East Coast, urban, university hospital setting. STUDY DESIGN: Two hundred forty-two women who underwent the 3-hour GTT during pregnancy between January 1, 2004, and February 1, 2005, at a university hospital laboratory and private laboratories were included. The preceding 1-hour GTT results were obtained from these women, and a receiver operating characteristic (ROC) curve was constructed to identify a 1-hour GTT cutoff value that would maintain 100%, 90% and 75% sensitivity. A subgroup analysis was performed of patients of Asian ethnicity. This study was approved by the institutional review board. RESULTS: To maintain 100% sensitivity of the 1-hour GTT in predicting an abnormal 3-hour GTT, the 1-hour GTT cutoff value could be raised to 144 mg/dL in our population. For 90% and 75% sensitivities, the values were 150 and 156 mg/dL, respectively. There was no clinically significant difference in ROC curve evaluation between Asian and non-Asian groups. CONCLUSION: Raising the current level of 135 mg/dL for a 1-hour GTT to potentially decrease the need for the 3-hour GTT should be considered if larger patient series yield findings similar to those in our population.
Erika B Johnston-MacAnanny; Amen Ness; Louis Weinstein
Publication Detail:
Type:  Evaluation Studies; Journal Article    
Journal Detail:
Title:  The Journal of reproductive medicine     Volume:  52     ISSN:  0024-7758     ISO Abbreviation:  J Reprod Med     Publication Date:  2007 Jun 
Date Detail:
Created Date:  2007-08-14     Completed Date:  2007-09-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0173343     Medline TA:  J Reprod Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  463-6     Citation Subset:  IM    
Department of Obstetrics and Gynecology, Thomas Jefferson University Hospital, 834 Chestnut Street, Apartment 617, Philadelphia, PA 19107, USA.
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MeSH Terms
Diabetes, Gestational / diagnosis*
Glucose Tolerance Test / methods*
Reference Values
Retrospective Studies
Sensitivity and Specificity

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