Comparison of likelihood ratios of first-trimester nuchal translucency measurements: Multiples of median, delta or mixture

Ultrasound in Obstetrics and Gynecology

Volumn 36, Issue 1, 2010, Pages 15-19

  Sahota, D S ^a   Leung, T Y ^a   Chen, M ^a   Chan, L W ^a   Fung, T Y ^a   Lau, T K ^a  

^a CHINESE UNIVERSITY OF HONG KONG   (Hong Kong)

Author keywords

First trimester screening; Likelihood ratios; Nuchal translucency; Trisomy 21

Indexed keywords

ADULT; ARTICLE; COMPARATIVE STUDY; CROWN RUMP LENGTH; DOWN SYNDROME; ECHOGRAPHY; FEMALE; FIRST TRIMESTER PREGNANCY; HUMAN; METHODOLOGY; NUCHAL TRANSLUCENCY MEASUREMENT; PREDICTIVE VALUE; PREGNANCY; PROBABILITY; RETROSPECTIVE STUDY; STATISTICAL MODEL;

ADULT; CROWN-RUMP LENGTH; DOWN SYNDROME; FEMALE; HUMANS; LIKELIHOOD FUNCTIONS; NUCHAL TRANSLUCENCY MEASUREMENT; PREDICTIVE VALUE OF TESTS; PREGNANCY; PREGNANCY TRIMESTER, FIRST; PROBABILITY; RETROSPECTIVE STUDIES;

EID: 77954287502     PISSN: 09607692     EISSN: 14690705     Source Type: Journal    
DOI: 10.1002/uog.7677     Document Type: Article

References (13)

1. Nicolaides KH. First-trimester screening for chromosomal abnormalities. Semin Perinatol 2005;29:190-194.
2. Leung TY, Chan LW, Leung TN, Fung TY, Sahota DS, Spencer K, Lau TK. First-trimester combined screening for trisomy 21 in a predominantly Chinese population. Ultrasound Obstet Gynecol 2007;29:14-17.
3. Leung TY, Chan LW, Law LW, Sahota DS, Fung TY, Leung TN, Lau TK. First trimester combined screening for Trisomy 21 in Hong Kong: outcome of the first 10, 000 cases. J Matern Fetal Neonatal Med 2009;22:300-304.
4. Kagan KO, Wright D, Baker A, Sahota D, Nicolaides KH. Screening for trisomy 21 by maternal age, fetal nuchal translucency thickness, free beta-human chorionic gonadotropin and pregnancy-associated plasma protein-A. Ultrasound Obstet Gynecol 2008;31:618-624.
5. Spencer K, Bindra R, Nix AB, Heath V, Nicolaides KH. Delta-NT or NT MoM: which is the most appropriate method for calculating accurate patient-specific risks for trisomy 21 in the first trimester? Ultrasound Obstet Gynecol 2003;22:142-148.
6. Wright D, Kagan KO, Molina FS, Gazzoni A, Nicolaides KH. A mixture model of nuchal translucency thickness in screening for chromosomal defects. Ultrasound Obstet Gynecol 2008;31:376-383.
7. Sahota DS, Leung TY, Chan LW, Law LW, Fung TY, Chen M, Lau TK. Comparison of first-trimester contingent screening strategies for Down syndrome. Ultrasound Obstet Gynecol 2010;35:286-291.
8. Sahota DS, Leung TY, Leung TN, Chan OK, Lau TK. Fetal crown-rump length and estimation of gestational age in an ethnic Chinese population. Ultrasound Obstet Gynecol 2009;33:157-160.
9. Wald NJ, Rodeck C, Hackshaw AK, Walters J, Chitty L, Mackinson AM; SURUSS Research Group. First and second trimester antenatal screening for Down's syndrome: the results of the Serum, Urine and Ultrasound Screening Study (SURUSS). Health Technol Assess 2003;7:1-87.
10. Sahota DS, Leung TY, Fung TY, Chan LW, Law LW, Lau TK. Medians and correction factors for biochemical and ultrasound markers in Chinese women undergoing first-trimester screening for trisomy
11. Ultrasound Obstet Gynecol 2009;33:387-393.
12. National Screening Committee. Fetal Anomaly Screening Programme - Screening for Down's Syndrome: UK NSC Policy recommendations 2007-2010: Model of Best Practice. http://www.dh.gov. uk/en/Publicationsandstatistics/Publications/ PublicationsPolicyAndGuidance/DH 084732 [accessed on 10/10/2009].
13. Nicolaides KH, Snijders RJ, Cuckle HS. Correct estimation of parameters for ultrasound nuchal translucency screening. Prenat Diagn 1998;18:519-523.