Document Detail


Human chorionic gonadotropin levels between 16 and 21 weeks of pregnancy and prediction of pre-eclampsia.
MedLine Citation:
PMID:  16325185     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To determine whether levels of beta human choriogonadotropin (beta-hCG) during the second trimester are a predictor of pre-eclampsia. METHODS: A prospective study of 784 women was conducted between their 16th and 20th week of pregnancy. Primigravidas and multigravidas were analyzed separately, and the cutoff point was determined using a receiver operating characteristic curve. The accuracy of beta-hCG levels in the prediction of pre-eclampsia was evaluated. The likelihood ratios were calculated for different levels of beta-hCG in both groups. RESULTS: Pre-eclampsia prevalence was 7.1% among primigravidas and 4.6% among multigravidas. The cutoff concentration was 2.0 MoM in both groups. For primigravidas and multigravidas, respectively, the area below the curve was 0.96 and 0.95; sensitivity was 88.5% and 100%; specificity was 92.0% and 85.6%; positive predictive value was 0.46 and 0.25; and negative predictive value was 0.99 and 1.0. With a cutoff concentration of 2.0 MoM of beta-hCG, the positive likelihood ratio was 11.1 in primigravidas and 6.9 in multigravidas. CONCLUSION: This study shows that measuring levels of beta-hCG during the second trimester of pregnancy is useful in clinical practice to identify pregnant women who will develop pre-eclampsia.
Authors:
J Roiz-Hernández; J de J Cabello-Martínez; M Fernández-Mejía
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2005-12-01
Journal Detail:
Title:  International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics     Volume:  92     ISSN:  0020-7292     ISO Abbreviation:  Int J Gynaecol Obstet     Publication Date:  2006 Feb 
Date Detail:
Created Date:  2006-01-20     Completed Date:  2007-07-17     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0210174     Medline TA:  Int J Gynaecol Obstet     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  101-5     Citation Subset:  IM    
Affiliation:
Unidad de Investigación Clínica, Torreón, Coahuila, México. joserioz@yahoo.com
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Chorionic Gonadotropin / blood*
Female
Follow-Up Studies
Gestational Age
Gravidity
Humans
Pre-Eclampsia / blood,  diagnosis*
Pregnancy
Pregnancy Trimester, Second / blood*
Prevalence
Prospective Studies
ROC Curve
Sensitivity and Specificity
Chemical
Reg. No./Substance:
0/Chorionic Gonadotropin

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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