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. 2021 Apr 27;12:645555. doi: 10.3389/fgene.2021.645555

Table 1.

Overview of the reviewed studies.

Reference Country; setting (study period) Study design Sample size Drugs of exposure Exposure measures Phenotypic outcomes Outcome measures
Antidepressants Corti et al. (2019) Italy (2011–2016) Case × control SRIs and maternal depression/anxiety, n = 32/30:
Normal neonatal genotype, n = 10
Altered neonatal genotype, n = 22
Normal maternal genotype, n = 12
Altered maternal genotype, n = 1
Paroxetine, venlafaxine, sertraline, or citalopram Medical records and follow-up of drug compliance during pregnancy in monthly obstetric and psychiatric visits Preterm birth, neonatal complicationsa, and umbilical artery pH and base excess Medical records and follow-up by multidisciplinary team at the hospital
Ackerman et al. (2017) USA; sample from the Simons Simplex Collection Cohort Antidepressants and LGD mutations n = 9
Antidepressants and no LGD mutations n = 95
No antidepressants and LGD mutations n = 335
No antidepressants and no LGD mutations, n = 2,011 (All participants had ASD)
Amitriptyline, bupropion, citalopram, escitalopram, fluoxetine, imipramine, paroxetine, sertraline, or venlafaxine Parent interview; use of antidepressants in ≥1 trimesters ASD severity Clinician-measured (ADOS) or parent-reported (ADI-R) ASD severity
Daud et al. (2017) The Netherlands; the EUROCAT Northern Netherlands database (1997–2013) Cohort SRIs and congenital heart anomaly, n = 7 mothers/children
No SRIs and congenital heart anomaly, n = 28 mothers/children
Fluoxetine, paroxetine, or venlafaxine Medical records verified by telephone interviews Congenital heart anomalies Diagnoses of congenital heart anomaliesb before 10 years of age based on ICD-9/10 registered in the EUROCAT Northern Netherlands database
Nembhard et al. (2017) USA; the US National Birth Defects Prevention Study (NBDPS; 1997–2008) Case × control SSRIs and congenital heart anomaly, n = 57 mothers/children
SSRIs and no congenital heart anomaly, n = 54 mothers/children
No SSRIs and congenital heart anomaly, n = 1,119 mothers/children
No SSRIs and no congenital heart anomaly, n = 1,590 mothers/children
Sertraline, fluoxetine, paroxetine, citalopram, or escitalopram Maternal interview of consecutive drug use for at least 2 months between 2 months before conception and 3 months after conception Congenital heart anomalies Diagnoses of congenital heart anomalies based on the classification system specifically developed for the National Birth Defects Prevention Study, incorporating cardiac phenotype, complexity of the phenotype, and extra-cardiac anomalies
Weikum et al. (2013) Canada; part of a study on the effects of antenatal SSRI exposure Cohort SRIs and maternal mood disorder, n = 26 children
No SRIs and maternal mood symptoms, n = 38 children
Paroxetine, fluoxetine, sertraline, venlafaxine, or citalopram Physician- or self-reported Child mood, behavior, and executive functions Child mood and behavior assessed with the mental health symptomatology section of the MacArthur Health and Behavior Questionnaire. Executive functions assessed by the Hearts and Flowers task
Brummelte et al. (2013) Canada (2006–2009) Cohort SRIs, n = 17 mothers/children
No SRIs, n = 28/26 mothers/children
Paroxetine, fluoxetine, sertraline, venlafaxine, citalopram, or escitalopram Medical records on medication, dose, and indication Levels of reelin in cord blood and maternal blood Western blot analysis of protein levels in maternal and umbilical cord serum
Oberlander et al. (2010) Canada; part of a study on the effects of antenatal SSRI exposure Cohort SRIs and maternal mood disorder, n = 33 children
No SRIs and maternal mood symptoms, n = 42 children
Paroxetine, fluoxetine, sertraline, venlafaxine, or citalopram Physician- or self-reported Child behavior Child behavior was evaluated with the Child Behavior Checklist at 3 years of age
Hilli et al. (2009) Finland; part of a controlled prospective study by Laine et al., 2003 (1997–2000) Cohort SSRIs, n = 20 children Citalopram or fluoxetine Medical records on the medication, dose, and indication Perinatal serotonergic symptoms and neurotransmitter blood concentrations Assessment of serotonergic symptoms by pediatricians (Sternbach, 1991). Neurotransmitter concentrations measured from whole blood and umbilical vein blood samples
Oberlander et al. (2008) Canada; part of a study on the effects of antenatal SSRI exposure Cohort SRIs, n = 37 mothers/children
No SRIs, n = 47 mothers/children
Paroxetine, fluoxetine, sertraline, venlafaxine, or citalopram Medical records on medication and indication Preterm birth and adverse neonatal outcomes (e.g., birth weight, Apgar score, muscle tone, respiratory distress, and jitteriness) Medical records and follow-up at the hospital
Antiepileptic drugs Jose et al. (2014) India; part of the Kerala Registry of Epilepsy and Pregnancy (KREP) Case × control AEDs, maternal epilepsy and children with congenital anomalies, n = 143 mothers
AEDs, maternal epilepsy and children without congenital anomalies, n = 123 mothers
Carbamazepine, valproic acid, phenytoin, clonazepam, or phenobarbital Medical records of the registry Congenital anomalies (main focus on cardio-vascular anomalies) Clinical examination of malformations at birth. Echocardiography and abdomen ultrasonography at 3 months of age
Azzato et al. (2010) USA; part of the Collaborative Perinatal Project (CPP) database (1959–1966) Cohort AEDs, n = 155/174 (mothers/children) Phenytoin Questionnaire data and maternal medical records Craniofacial anomalies Craniofacial anomalies considered if microcephaly, abnormal sutures, midfacial hypoplasia, cleft lip, palate or gum, or deformed/low-set ears were noted in medical records. A standardized evaluation form assessing the presence of anomalies was subsequently completed by physicians
Dean et al. (2007) Scotland (1976–2002) Case × control AEDs, n = 276/172/86 (children/mothers/fathers)
No AEDs, n = 646 healthy blood donors
Valproic acid, phenobarbitone, carbamazepine, phenytoin, lamotrigine, or polytherapy Medical records and maternal interviews on AED use Fetal anticonvulsant syndrome, major malformations, and neurodevelopmental disorders Facial photographs reviewed by a physician for fetal anticonvulsant syndrome (diagnosed if ≥1 major and ≥1 minor feature appeared in the child, or if (s)he had ≥3 minor features). Children without fetal anticonvulsant syndrome were included in analyses of major malformations and neurodevelopmental disorders
Kini et al. (2007) United Kingdom (2000–2004) Cohort AEDs and epilepsy, n = 153 mothers/children
No AEDs and no epilepsy, n = 236 mothers/children
Valproic acid, carbamazepine, another monotherapy, or polytherapy Medical records on AED use and dose Major malformations Major malformations defined as structural abnormalities requiring medical or surgical intervention to prevent disability using the EUROCAT list of congenital malformations as a guideline
Dean et al. (1999) Scotland Case × control AEDs, n = 46/36/19 (children/mothers/fathers)
No AEDs, n = 152 adults matched to the parents
Valproic acid, carbamazepine, and phenytoin The Fetal Anticonvulsant Syndrome Association registry Fetal anticonvulsant syndrome Fetal anticonvulsant syndrome in the presence of a characteristic facial appearance and at least one compatible clinical finding (anticonvulsant-associated malformation, medical disorder, or developmental delay), and no other identifiable etiology
Glucocorticoids Van Der Voorn et al. (2015) The Netherlands; part of the Project On Preterm and Small for gestational age infants (POPS) cohort (1983) Cohort Betamethasone, n = 71 children
No betamethasone, n = 273 children
Betamethasone Medical records Behavior and intelligence Behavior assessed by the YASR (self-reported) and YABCL (parent-reported) questionnaires. Intellectual functioning examined with the Multicultural Capacity Test-Intermediate Level (Bleichrodt and van den Berg, 2000)
Haas et al. (2013) USA; part of the betamethasone (BMZ) pharmacogenetics cohort Cohort Betamethasone, n = 109/117 (mothers/children) Betamethasone Medical records Adverse neonatal respiratory outcomes Neonates with respiratory difficulties included
• Neonates needing respiratory support or surfactants (data extracted from neonatal charts)
• Neonates diagnosed with bronchopulmonary dysplasia by pediatricians (standard criteria from the Neonatal Research Network of the National Institute of Child Health and Human Development)
Oretti et al. (2009) Italy (2005–2006) Cohort Betamethasone, n = 62 preterm neonates Betamethasone Medical records Respiratory distress syndrome Diagnosis of respiratory distress syndrome based on clinical and radiographic criteria (tachypnea, chest retractions, cyanosis in room air persisting 48–96 h and typical chest X-ray)
Bertalan et al. (2008) Hungary; part of a neonate cohort at Semmelweis University Cohort Dexamethasone, n = 57 preterm neonates;
No dexamethasone, n = 68 preterm neonates
Dexamethasone Medical records Birth weight and perinatal complicationsc Medical charts and diagnoses based on clinical and radiographic observations and testsd
Thalidomide Kowalski et al. (2020) Brazil Case × control Thalidomide, n = 27 affected individuals (non-Finnish European population of ExAC, 1,000 Genomes, and ABraOM databases were used as a control group for genetic comparisons)e Thalidomide Medication use defined based on neonatal phenotype Thalidomide embryopathy and their specific phenotypes The authors characterized congenital anomalies related to thalidomide exposure according to a guideline they created. Congenital anomalies were consistent with typical thalidomide embryopathy
Gomes et al. (2019) Brazil Case × control Thalidomide, n = 36 affected individuals;
Assumption of no thalidomide by absence of congenital anomalies and thalidomide embryopathy, n = 135 individuals
Thalidomide Medication use defined based on neonatal phenotype Thalidomide embryopathy and embryopathy-specific phenotypes The authors characterized congenital anomalies related to thalidomide exposure according to a guideline they created. Congenital anomalies were consistent with typical thalidomide embryopathy
Gomes et al. (2018) Brazil Case × control Thalidomide, n = 35 affected individuals (non-Finnish European population of gnomAD database was used as a control groupf Thalidomide Medication use defined based on neonatal phenotype Thalidomide embryopathy and embryopathy-specific phenotypes The authors characterized congenital anomalies related to thalidomide exposure according to a guideline they created. Congenital anomalies were consistent with typical thalidomide embryopathy
Kowalski et al. (2017) Brazil Case × control Thalidomide, n = 36 affected individuals
Assumption of no thalidomide by absence of congenital anomalies and thalidomide embryopathy, n = 136 individuals
Thalidomide Medication use defined based on neonatal phenotype Thalidomide embryopathy and embryopathy-specific phenotypes The authors characterized congenital anomalies related to thalidomide exposure according to a guideline they created. Congenital anomalies were consistent with typical thalidomide embryopathy
Kowalski et al. (2016) Brazil Case × control Thalidomide, n = 38 affected individuals
Assumption of no thalidomide by absence of congenital anomalies and thalidomide embryopathy, n = 137 individuals
Thalidomide Medication use defined based on neonatal phenotype Thalidomide embryopathy and embryopathy-specific phenotypes The authors characterized congenital anomalies related to thalidomide exposure according to a guideline they created. Congenital anomalies were consistent with typical thalidomide embryopathy
Vianna et al. (2016) Brazil Case × control Thalidomide, n = 38 affected individuals
Assumption of no thalidomide by absence of congenital anomalies and thalidomide embryopathy, n = 136 individuals
Thalidomide Medication use defined based on neonatal phenotype Thalidomide embryopathy and embryopathy-specific phenotypes The authors characterized congenital anomalies related to thalidomide exposure according to a guideline they created. Congenital anomalies were consistent with typical thalidomide embryopathy
Vianna et al. (2013) Brazil Case × control Thalidomide, n = 28/27 (affected individuals/their relatives)
Assumption of no thalidomide by absence of congenital anomalies and thalidomide embryopathy, n = 137 individuals
Thalidomide Medication use defined based on neonatal phenotype Thalidomide embryopathy and embryopathy-specific phenotypes The authors characterized congenital anomalies related to thalidomide exposure according to a guideline they created. Congenital anomalies were consistent with typical thalidomide embryopathy
Other medications Bustos et al. (2017) USA; part of a trial on omega-3 use and spontaneous preterm births Cohort 17-alpha hydroxyprogesterone caproate, n = 268 mothers 17-alpha hydroxy-progesterone caproate Medical records 17-alpha hydroxy-progesterone caproate plasma concentrations and spontaneous preterm births 17-alpha hydroxyprogesterone caproate plasma concentrations determined by high-performance liquid chromatography-mass spectrometry (limit of detection: 1 ng/mL). Preterm birth based on the gestational age at delivery
Van Der Zanden et al. (2012) The Netherlands; subset of the AGORA biobank at Radboud University Nijmegen Medical Center (1980–2008) Cohort Estrogens and hypospadias, n = 29 children
No estrogens and hypospadias, n = 580 children
Estrogens Questionnaires Hypospadias Medical records (no information on criteria for diagnosing syndromic hypospadias)
Perzanowski et al. (2010) USA (1998–2006) Cohort Acetaminophen, n = 103 mothers/children
No acetaminophen, n = 198 mothers/children
Acetaminophen Questionnaires Wheeze at 1–3 and 5 years, and seroatopy Wheeze at 1, 2, or 3 years if ≥1 episode was reported in ≥1 interview during these years. Wheeze at 5 years if an episode was reported in the previous 12 months according to the ISAAC questionnaire. Seroatopy if IgE antibodies in serum ≥0.35 IU/mL against D. farinae, mouse, cockroach, cat, or dog
Shaheen et al. (2010) Unite Kingdom; Avon Longitudinal Study of Parents and Children (ALSPAC; 1991–1992) Cohort Acetaminophen in early pregnancy (< 18–20 weeks), n = 4,952 mothers/children
Acetaminophen in late pregnancy (20–32 weeks), n = 4,822 mothers/children
Acetaminophen Questionnaires Wheezing, asthma, eczema, hay fever, atopy, and lung function at 6.5–8.5 years Children were defined as having wheezing, eczema, and hay fever if mothers responded positively to the question in the interview; asthma was considered based on diagnosis; atopy was defined as a positive reaction to D. pteronyssinus, cat, or grass; lung function was measured by spirometry
a

Low birth weight (<2,500 g), small for gestational age, APGAR scores (1 and 5 min) < 7, neonatal breathing problems, neurological symptoms, respiratory distress syndrome, need of access to neonatal intensive care unit, persistent pulmonary hypertension of the neonate, poor neonatal adaptation syndrome; neonatal abstinence syndrome and transient tachypnea of the neonate.

b

Single heart anomalies, part of complex heart anomalies (including cardiovascular anomalies) or part of complex anomalies involving other organ systems. Diagnosis codes from ICD-9 included 745–746, 7,470–7,474 (excluding 74,550, persistent foramen ovale), and from ICD-10 included Q20–Q26 (excluding Q2111, persistent foramen ovale). These encompass common arterial truncus, transposition of great vessels, single ventricle, ventricular/atrial/atrioventricular septal defects, tetralogy of Fallot, tricuspid atresia and stenosis, Ebstein's anomaly, pulmonary valve stenosis, pulmonary valve atresia, aortic valve atresia/stenosis, hypoplastic left/right heart syndrome, coarctation of aorta, total anomalous pulmonary venous return and patent ductus arteriosus.

c

Perinatal complications included: necrotizing enterocolitis, intraventricular hemorrhage, patent ductus arteriosus, respiratory distress syndrome, bronchopulmonary dysplasia, and sepsis.

d

The disorders were diagnosed as follows: necrotizing enterocolitis: clinical and radiological symptoms; intraventricular hemorrhage: neurosonograms; patent ductus arteriosus: echocardiography and clinical signs 5 days after birth; respiratory distress syndrome: need for respiratory support and oxygen upon presence of radiographic chest findings; bronchopulmonary dysplasia: oxygen dependency from 32 weeks of gestational age onwards; sepsis: clinical evidence and/or positive blood/cerebrospinal fluid cultures.

e

ExAC database, ExAC data is now available in the gnomAD browser; 1,000 Genomes, around 3,000 genomes from individuals of different populations; ABraOM database, 609 exomes from Brazilian individualscultures.

f

gnomAD database, 125,748 exomes and 15,708 whole genomes from individuals of different populations. ADI-R, Autism Diagnostic Interview-revised; ADOS, autism diagnostic observation schedule; AED, anti-epileptic drug; ASD, autism spectrum disorder; ICD-9/10, International Statistical Classification of Diseases and Related Health Problems 9th/10th Revision; LGD, likely gene-disrupting; SSRI, selective serotonin reuptake inhibitor; SRI, serotonin reuptake inhibitor; YABCL, Young Adult Behavior Checklist; YASR, Young Adult Self Report; TE, thalidomide embryopathy; ISAAC, International Study of Asthma and Allergies in Childhood.