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Pierre CC, Greene DN, Delaney S, Lockwood CM, Peck Palmer OM. Reconsidering the use of race adjustments in maternal serum screening. Am J Obstet Gynecol 2023; 229:522-525. [PMID: 37327981 DOI: 10.1016/j.ajog.2023.06.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 06/09/2023] [Accepted: 06/11/2023] [Indexed: 06/18/2023]
Abstract
The use of race in maternal serum screening is problematic because race is a social construct rather than a distinct biological classifier. Nevertheless, laboratories offering this testing are encouraged to use race-specific cutoff values for maternal serum screening biomarkers to determine the risk of fetal abnormalities. Large cohort studies examining racial differences in maternal serum screening biomarker concentrations have yielded conflicting results, which we postulate may be explained by genetic and socioeconomic differences between racial cohorts in different studies. We recommend that the use of race in maternal serum screening should be abandoned. Further research is needed to identify socioeconomic and environmental factors that contribute to differences in maternal serum screening biomarker concentrations observed between races. A better understanding of these factors may facilitate accurate race-agnostic risk estimates for aneuploidy and neural tube defects.
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Affiliation(s)
- Christina C Pierre
- Department of Pathology and Laboratory Medicine, Penn Medicine Lancaster General Health, Lancaster, PA; Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
| | - Dina N Greene
- Department of Laboratory Medicine, University of Washington, Seattle, WA
| | - Shani Delaney
- Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, University of Washington, Seattle, WA
| | - Christina M Lockwood
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA
| | - Octavia M Peck Palmer
- Departments of Pathology and Clinical and Translational Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA
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Wu X, Yang H, Yu X, Zeng J, Qiao J, Qi H, Xu H. The prenatal diagnostic indicators of placenta accreta spectrum disorders. Heliyon 2023; 9:e16241. [PMID: 37234657 PMCID: PMC10208845 DOI: 10.1016/j.heliyon.2023.e16241] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 04/29/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Placenta accreta spectrum (PAS) disorders refers to a heterogeneous group of anomalies distinguished by abnormal adhesion or invasion of chorionic villi through the myometrium and uterine serosa. PAS frequently results in life-threatening complications, including postpartum hemorrhage and hysterotomy. The incidence of PAS has increased recently as a result of rising cesarean section rates. Consequently, prenatal screening for PAS is essential. Despite the need to increase specificity, ultrasound is still considered a primary adjunct. Given the dangers and adverse effects of PAS, it is necessary to identify pertinent markers and validate indicators to improve prenatal diagnosis. This article summarizes the predictors regarding biomarkers, ultrasound indicators, and magnetic resonance imaging (MRI) features. In addition, we discuss the effectiveness of joint diagnosis and the most recent research on PAS. In particular, we focus on (a) posterior placental implantation and (b) accreta after in vitro fertilization-embryo transfer, both of which have low diagnostic rates. At last, we graphically display the prenatal diagnostic indicators and each diagnostic performance.
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Affiliation(s)
- Xiafei Wu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Huan Yang
- Department of Obstetrics, Chongqing University Three Gorges Hospital, Chongqing 404100, China
| | - Xinyang Yu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Jing Zeng
- Stomatological Hospital of Chongqing Medical University, Chongqing 401147, China
| | - Juan Qiao
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Hongbo Qi
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
- Women and Children's Hospital of Chongqing Medical University, Chongqing 401147, China
| | - Hongbing Xu
- Department of Obstetrics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
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Genc S, Ozer H, Emeklioglu CN, Cingillioglu B, Sahin O, Akturk E, Sirinoglu HA, Basaran N, Mihmanli V. Relationship between extreme values of first trimester maternal pregnancy associated plasma Protein-A, free-β-human chorionic gonadotropin, nuchal translucency and adverse pregnancy outcomes. Taiwan J Obstet Gynecol 2022; 61:433-440. [PMID: 35595434 DOI: 10.1016/j.tjog.2022.02.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/07/2022] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVE The aim of our study was to investigate the relationship between extreme values of first trimester screening markers and adverse obstetric outcomes. MATERIALS AND METHODS Our study was conducted by examining the prenatal and postnatal perinatal records of 786 singleton gestations between the ages of 18-40, who applied to Prof. Dr. Cemil Taşçıoğlu City Hospital outpatient clinics for first-trimester screening for aneuploidy, between January 1, 2017 and December 31, 2019. RESULTS The presence of small for gestational age (SGA) was found to be statistically significant for the <5 percentile (<0.37) pregnancy-associated plasma protein A (PAPP-A) group (p = 0.016). For <5 percentile β-hCG group, the presence of gestational diabetes mellitus (GDM), premature rupture of membrane (PROM) and preterm premature rupture of membrane (PPROM) was determined as a statistically significant risk (p = 0.015, p = 0.005, p = 0.02 respectively) In the univariate test, fetal death rate was found to be high for ≥90 percentile at nuchal translucency (NT), but the presence of fetal death was found to be statistically insignificant in logistic regression analysis. (p: 0.057). CONCLUSION First trimester screening test can be used in predicting pregnancy complications. In this study we found that serum levels of PAPP-A are associated with developing SGA, while GDM, PROM and PPROM are more common in low serum free β-hCG.
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Affiliation(s)
- Simten Genc
- Obstetrics and Gynecology Department Okmeydanı Training and Research Hospital Istanbul, Turkey (Prof. Dr. Cemil Tascıoglu City Hospital), Darulaceze Cad. No:25, Okmeydani, Sisli, 34384, Istanbul, Turkey.
| | - Hale Ozer
- Obstetrics and Gynecology Department Okmeydanı Training and Research Hospital Istanbul, Turkey (Prof. Dr. Cemil Tascıoglu City Hospital), Darulaceze Cad. No:25, Okmeydani, Sisli, 34384, Istanbul, Turkey.
| | - Cagdas Nurettin Emeklioglu
- Obstetrics and Gynecology Department Okmeydanı Training and Research Hospital Istanbul, Turkey (Prof. Dr. Cemil Tascıoglu City Hospital), Darulaceze Cad. No:25, Okmeydani, Sisli, 34384, Istanbul, Turkey.
| | - Basak Cingillioglu
- Obstetrics and Gynecology Department Okmeydanı Training and Research Hospital Istanbul, Turkey (Prof. Dr. Cemil Tascıoglu City Hospital), Darulaceze Cad. No:25, Okmeydani, Sisli, 34384, Istanbul, Turkey.
| | - Orhan Sahin
- Obstetrics and Gynecology Department Okmeydanı Training and Research Hospital Istanbul, Turkey (Prof. Dr. Cemil Tascıoglu City Hospital), Darulaceze Cad. No:25, Okmeydani, Sisli, 34384, Istanbul, Turkey.
| | - Erhan Akturk
- Obstetrics and Gynecology Department Okmeydanı Training and Research Hospital Istanbul, Turkey (Prof. Dr. Cemil Tascıoglu City Hospital), Darulaceze Cad. No:25, Okmeydani, Sisli, 34384, Istanbul, Turkey.
| | - Hicran Acar Sirinoglu
- Obstetrics and Gynecology Department Okmeydanı Training and Research Hospital Istanbul, Turkey (Prof. Dr. Cemil Tascıoglu City Hospital), Darulaceze Cad. No:25, Okmeydani, Sisli, 34384, Istanbul, Turkey.
| | - Nilgun Basaran
- Biochemistry Department Okmeydanı Training and Research Hospital Istanbul, Turkey (Prof. Dr. Cemil Tascıoglu City Hospital), Darulaceze Cad. No:25, Okmeydani, Sisli, 34384, Istanbul, Turkey.
| | - Veli Mihmanli
- Obstetrics and Gynecology Department Okmeydanı Training and Research Hospital Istanbul, Turkey (Prof. Dr. Cemil Tascıoglu City Hospital), Darulaceze Cad. No:25, Okmeydani, Sisli, 34384, Istanbul, Turkey.
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Bergstrand E, Borregaard Miltoft C, Tabor A. Performance of first trimester screening for Trisomy 21 in twin pregnancies. Prenat Diagn 2020; 41:210-217. [PMID: 33128403 DOI: 10.1002/pd.5857] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 09/30/2020] [Accepted: 10/24/2020] [Indexed: 01/11/2023]
Abstract
OBJECTIVES To assess the performance of the Danish first trimester screening program in twin pregnancies. METHOD Retrospective, nation-wide, cohort study with data collected from the Danish Fetal Medicine Database (DFMD) and The Danish Central Cytogenetic Registry (DCCR). The cohort included all women with twin pregnancies participating in the national first trimester screening program for Trisomy 21. Risk assessment was based on maternal age, nuchal translucency (NT) thickness and, if available, biochemical markers (β-hCG and PAPP-A). RESULTS 8812 twin pregnancies including 42 pregnancies with Trisomy 21 had a risk assessment between 2009 and 2017. The detection rate (DR) for pregnancies with a risk assessment based on maternal age and NT only (missing data on biochemical markers, n = 4693) was 69.6% (95% CI: 50.8%-88.4%) for a 6.3% false positive rate (FPR) (95% CI: 5.6%-7.0%), whereas for pregnancies with a risk assessment based on all three parameters (n = 4119) the DR was 89.5% (95% CI: 76.7%-100.0%) for a 7.2% FPR (95% CI: 6.4%-8.0%). CONCLUSION The DR of Trisomy 21 in twin pregnancies, seems as high as for singleton pregnancies, when using optimal screening techniques, but the FPR is nearly twice as high.
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Affiliation(s)
- Eva Bergstrand
- Center of Fetal Medicine, Department of Obstetrics, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.,Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
| | - Caroline Borregaard Miltoft
- Center of Fetal Medicine, Department of Obstetrics, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
| | - Ann Tabor
- Center of Fetal Medicine, Department of Obstetrics, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.,Faculty of Health and Medical Science, University of Copenhagen, Copenhagen, Denmark
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Bonnin A, Muller F, Senat MV, Sault C, Galland A, Taieb J, Dreux S, Bouyer J, Benachi A. Down syndrome maternal serum markers in oocyte donation and other assisted reproductive technologies. Prenat Diagn 2017; 37:1155-1159. [DOI: 10.1002/pd.5157] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 09/06/2017] [Accepted: 09/11/2017] [Indexed: 01/11/2023]
Affiliation(s)
- Aurore Bonnin
- Gynécologie-Obstétrique et Médecine de la Reproduction, Hôpital Antoine Béclère, AP-HP; Université Paris Sud; 92140 Clamart France
| | - Françoise Muller
- Biochimie-Hormonologie; Hôpital Robert Debré, AP-HP; 75019 Paris France
| | - Marie-Victoire Senat
- Gynécologie-Obstétrique; Hôpital Bicêtre, AP-HP; 94270 Le Kremlin-Bicêtre France
| | | | | | - Joëlle Taieb
- Biochimie; Hôpital Antoine Béclère, AP-HP; 92140 Clamart France
| | - Sophie Dreux
- Biochimie-Hormonologie; Hôpital Robert Debré, AP-HP; 75019 Paris France
| | - Jean Bouyer
- Center for Research in Epidemiology and Population Health (CESP), Inserm, Univ Paris-Sud, UVSQ; Université Paris Saclay; F-94276 Le Kremlin Bicêtre France
| | - Alexandra Benachi
- Gynécologie-Obstétrique et Médecine de la Reproduction, Hôpital Antoine Béclère, AP-HP; Université Paris Sud; 92140 Clamart France
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Lanes A, Huang T, Sprague AE, Leader A, Potter B, Walker M. Maternal serum screening markers and nuchal translucency measurements in in vitro fertilization pregnancies: a systematic review. Fertil Steril 2016; 106:1463-1469.e2. [DOI: 10.1016/j.fertnstert.2016.07.1120] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 07/26/2016] [Accepted: 07/28/2016] [Indexed: 10/21/2022]
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Browne JL, Klipstein-Grobusch K, Koster MPH, Ramamoorthy D, Antwi E, Belmouden I, Franx A, Grobbee DE, Schielen PCJI. Pregnancy Associated Plasma Protein-A and Placental Growth Factor in a Sub-Saharan African Population: A Nested Cross-Sectional Study. PLoS One 2016; 11:e0159592. [PMID: 27532602 PMCID: PMC4988712 DOI: 10.1371/journal.pone.0159592] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 07/06/2016] [Indexed: 01/11/2023] Open
Abstract
Background Baseline distributions of pregnancy disorders’ biomarkers PlGF and PAPP-A levels are primarily based on Western European populations of Caucasian ethnicity. Differences in PAPP-A and PlGF concentrations by ethnicity have been observed, with increased levels in Afro-Caribbean, East Asian, and South Asian women. Baseline concentrations of sub-Saharan African women have not been evaluated. Objectives To investigate PlGF and PAPP-A in a sub-Saharan African population and assess the performance of existing reference values of PAPP-A and PlGF. Methods A nested cross-sectional study was conducted in two public hospitals in Accra, Ghana. Out of the original 1010 women enrolled in the cohort, 398 participants were eligible for inclusion with a normotensive singleton gestation and serum samples taken between 56–97 days of pregnancy. PAPP-A and PlGF concentrations were measured with an automated immunoassay. Multiple of the median (MoM) values corrected for gestation and maternal weight for PAPP-A and PlGF were calculated using reference values of a Dutch perinatal screening laboratory based on over 10.000 samples, and PlGF manufacturer reference values, respectively. Results The PAPP-A median MoM was 2.34 (interquartile range (IQR) 1.24–3.97). Median PlGF MoM was 1.25 (IQR 0.95–1.80). Median MoM values for PAPP-A and PlGF tended to be slightly different for various Ghanaian ethnic subgroups. Conclusions PAPP-A and PlGF MoM values appear to be substantially higher in a sub-Saharan African population compared to the Caucasian or Afro-Caribbean MoM values previously reported. The difference suggests the need for a specific correction factor for this population to avoid underestimation of risk for fetal aneuploidies or placental disorders when using PAPP-A and PlGF MoM for screening purposes.
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Affiliation(s)
- Joyce L. Browne
- Julius Global Health, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands
- * E-mail:
| | - Kerstin Klipstein-Grobusch
- Julius Global Health, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands
- Division of Epidemiology & Biostatistics, School of Public Health, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg, South Africa
| | - Maria P. H. Koster
- Department of Obstetrics and Gynecology, University Medical Center Utrecht, The Netherlands
| | - Dhivya Ramamoorthy
- Julius Global Health, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Edward Antwi
- Julius Global Health, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands
- Ghana Health Service, Greater Accra Regional Health Directorate, Accra, Ghana
| | - Idder Belmouden
- Center for Infectious Diseases Research, Diagnostics and Screening (IDS), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
| | - Arie Franx
- Department of Obstetrics and Gynecology, University Medical Center Utrecht, The Netherlands
| | - Diederick E. Grobbee
- Julius Global Health, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Peter C. J. I. Schielen
- Center for Infectious Diseases Research, Diagnostics and Screening (IDS), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
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Tørring N. First trimester combined screening – focus on early biochemistry. Scandinavian Journal of Clinical and Laboratory Investigation 2016; 76:435-47. [DOI: 10.1080/00365513.2016.1200131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Niels Tørring
- Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark
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Reference ranges and determinants of total hCG levels during pregnancy: the Generation R Study. Eur J Epidemiol 2015; 30:1057-66. [PMID: 25963653 PMCID: PMC4584104 DOI: 10.1007/s10654-015-0039-0] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 05/04/2015] [Indexed: 01/01/2023]
Abstract
Human chorionic gonadotropin (hCG) is a pregnancy hormone secreted by the placental synctiotrophoblast cell layer that has been linked to fetal growth and various placental, uterine and fetal functions. In order to investigate the effects of hCG on clinical endpoints, knowledge on reference range (RR) methodology and determinants of gestational hCG levels is crucial. Moreover, a better understanding of gestational hCG physiology can improve current screening programs and future clinical management. Serum total hCG levels were determined in 8195 women participating in the Generation R Study. Gestational age specific RRs using ‘ultrasound derived gestational age’ (US RRs) were calculated and compared with ‘last menstrual period derived gestational age’ (LMP RRs) and a model-based RR. We also investigated which pregnancy characteristics were associated with hCG levels. Compared to the US RRs, the LMP RRs were lower, most notably for the median and lower limit levels. No considerable differences were found between RRs calculated in the general population or in uncomplicated pregnancies only. Maternal smoking, BMI, parity, ethnicity, fetal gender, placental weight and hyperemesis gravidarum symptoms were associated with total hCG. We provide gestational RRs for total hCG and show that total hCG values and RR cut-offs during pregnancy vary depending on pregnancy dating methodology. This is likely due to the influence of hCG on embryonic growth, suggesting that ultrasound based pregnancy dating might be less reliable in women with high/low hCG levels. Furthermore, we identify different pregnancy characteristics that influence total hCG levels considerably and should therefore be accounted for in clinical studies.
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Barrett ES, Parlett LE, Redmon JB, Swan SH. Evidence for sexually dimorphic associations between maternal characteristics and anogenital distance, a marker of reproductive development. Am J Epidemiol 2014; 179:57-66. [PMID: 24124194 DOI: 10.1093/aje/kwt220] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Data from animal models, historical cohorts, and modern epidemiologic studies have suggested that maternal characteristics can affect reproductive health of offspring; however, distinguishing between prenatal and postnatal contributions is difficult. Anogenital distance (AGD), the distance from the anus to the genitals, is believed to be a biomarker of prenatal androgen exposure in many species, and in humans it has been associated with several adult reproductive health outcomes. We used data from a pregnancy cohort study conducted in 4 US cities from 1999-2005 to examine whether AGD measurements in infants were associated with maternal self-reported age at conception, age at menarche, age at first birth, parity, and gravidity. AGD was measured in 289 infants (140 male, 149 female) born to study participants. After adjustment for relevant covariates, in linear regression models stratified by infant sex, maternal age was positively associated with AGD in male infants (AGD, anus to penis: β = 0.50, P = 0.002; AGD, anus to scrotum: β = 0.29, P = 0.02) but not female infants. Parity was inversely associated with AGD (anus to scrotum; β = -1.68, P = 0.03) in male infants. No other maternal characteristic predicted AGD in either sex. The mechanism underlying the unexpected relationship between maternal characteristics and AGD is unknown; however, we suggest several possibilities for future study.
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Spencer K, Cowans NJ. Accuracy of self-reported smoking status in first trimester aneuploidy screening. Prenat Diagn 2013; 33:245-50. [PMID: 23354850 DOI: 10.1002/pd.4053] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVES To review the accuracy of self-reporting of smoking status in our first trimester screening population and to assess the levels of pregnancy-associated plasma protein-A (PAPP-A) and free-β human chorionic gonadotropin (free-hCGβ) in women who were classified for smoking status by serum cotinine concentrations and self-reporting. METHODS Cotinine concentration was determined in the stored serum 696 self-reported smokers and 442 self-reported non-smokers. PAPP-A and free-hCGβ multiples of the medians (MoMs) determined at screening were reverted to uncorrected for self-reported smoking status. RESULTS A total of 21.7% of those self-reporting as non-smokers had increased serum cotinine concentrations (using a cut-off of 13.7 ng/mL), indicating a positive smoking status. This under-reporting meant that serum PAPP-A and free-hCGβ MoMs were greater reduced in smokers classified by cotinine levels (17.2% and 9.7%) than in those classified by self-reporting (14.6% and 2.8%). Women who were classified as smokers at conception but had stopped at some time afterwards did not have significantly reduced marker MoMs to non-smokers. CONCLUSIONS Self-reporting results in under-representation of smoking in our population, resulting in a significant bias and inflated screen-positive rates.
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Affiliation(s)
- Kevin Spencer
- Prenatal Research Unit, Department of Clinical Biochemistry, King George Hospital, Barley Lane, Goodmayes, IG3 8YB, UK.
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