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Dr. Roxanne  Collins  Dds image

Dr. Roxanne Collins Dds

Sr 571 28
El Rito NM 87530
505 814-4728
Medical School: Other - Unknown
Accepts Medicare: No
Participates In eRX: No
Participates In PQRS: No
Participates In EHR: No
License #: D7559
NPI: 1316932023
Taxonomy Codes:
122300000X

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Incorporation of inhibin-A in second-trimester screening for Down syndrome. - Obstetrics and gynecology
To evaluate the efficacy of the second-trimester quadruple test (maternal serum alpha-fetoprotein, unconjugated estriol, human chorionic gonadotropin, and inhibin-A) in prenatal screening for Down syndrome.All quadruple tests performed on singleton pregnancies over a 32-month period were reviewed. The sensitivity and false-positive rates were compared with the theoretic rates predicted by the screening model when applied to a population of women with the same maternal age distribution.Twenty-three thousand seven hundred four women with unaffected pregnancies and 45 women with Down syndrome-affected pregnancies received the quadruple test. Mean analyte values for both unaffected and affected pregnancies were similar to those expected. The sensitivity of the quadruple test, which was based on ascertainment of all viable affected pregnancies in the screened population, was 85.8%. This sensitivity did not significantly differ from an expected 83.8% (P =.8). The initial false-positive rate, 9.0%, was significantly below that expected (9.9%) (P =.002) and was further reduced to 8.2% after correction for major gestational age errors. The positive predictive value of the quadruple test was one in 51. Women with an affected pregnancy and a positive test result (true positives) generally had very high risks (median 1:22) relative to women with false-positive results (median risk 1:111).The quadruple test meets or exceeds performance expectations and appears to represent an improvement over the widely used triple test.

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Sr 571 28 El Rito, NM 87530
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