The effect of maternal alcohol and drug abuse on first trimester screening analytes: a retrospective cohort study

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http://hdl.handle.net/10138/319638

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BMC Pregnancy and Childbirth. 2020 Sep 25;20(1):562

Julkaisun nimi: The effect of maternal alcohol and drug abuse on first trimester screening analytes: a retrospective cohort study
Tekijä: Lehikoinen, Anni; Voutilainen, Raimo; Romppanen, Jarkko; Heinonen, Seppo
Julkaisija: BioMed Central
Päiväys: 2020-09-25
URI: http://hdl.handle.net/10138/319638
Tiivistelmä: Abstract Background The purpose of this study was to determine whether first trimester trisomy screening (FTS) parameters are affected by alcohol and drug use. Methods A routine combined FTS including measurements of maternal serum levels of free β-human chorionic gonadotropin subunit (free β-hCG) and pregnancy-associated plasma protein A (PAPP-A) were measured at 9–11 weeks of gestation, and fetal nuchal translucency thickness (NTT) at 11–13 weeks of gestation. In total 544 women with singleton pregnancies [71 alcohol and drug abusers, 88 smokers, 168 non-smokers delivering a small for gestational age (SGA) child, and 217 unexposed control women] were assessed. Results Free β-hCG levels were higher in alcohol and drug abusing than in unexposed pregnant women [mean 1.5 vs. 1.2 multiples of medians (MoM); P = 0.013]. However, stepwise multiple linear regression analyses suggested that smoking could explain increased free β-hCG. Additionally, we observed lower PAPP-A levels in the smoking mothers (0.9 vs. 1.2 MoM; P = 0.045) and in those giving birth to an SGA child compared to the controls (1.1 vs.. 1.2 MoM; P < 0.001). Fetal NTT did not differ significantly between any of the groups. Conclusions The present study shows increased free β-hCG levels in alcohol and drug abusers, but maternal smoking may explain the result. Maternal serum PAPP-A levels were lower in smoking than non-smoking mothers, and in mothers delivering an SGA child. However, FTS parameters (PAPP-A, free β-hCG and NTT) seem not to be applicable for the use as alcohol biomarkers because of their clear overlap between alcohol abusers and healthy controls.
Avainsanat: First trimester screening
PAPP-A
free β-hCG
nuchal translucency
alcohol
smoking
small for gestational age
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