Prenatal urinary concentrations of phenols and risk of preterm birth: exploring windows of vulnerability.
Fertil Steril
; 116(3): 820-832, 2021 09.
Article
em En
| MEDLINE
| ID: mdl-34238571
ABSTRACT
OBJECTIVE:
To explore windows of vulnerability to prenatal urinary phenol concentrations and preterm birth.DESIGN:
Prospective cohort.SETTING:
A large fertility center in Boston, Massachusetts. PATIENT(S) A total of 386 mothers who sought fertility treatment and gave birth to a singleton between 2005 and 2018. INTERVENTION(S) None. MAIN OUTCOME MEASURE(S) Singleton live birth with gestational age <37 completed weeks. RESULT(S) Compared with women with non-preterm births, urinary bisphenol A (BPA) concentrations were higher across gestation among women with preterm births, particularly during mid-to-late pregnancy and among those with female infants. Second trimester BPA concentrations were associated with preterm birth (Risk Ratio [RR] 1.24; 95%CI 0.92, 1.69), which was primarily driven by female (RR 1.40; 95%CI 1.04, 1.89) and not male (RR 0.85; 95%CI 0.50, 1.46) infants. First trimester paraben concentrations were also associated with preterm birth (RR 1.17; 95%CI 0.94, 1.46) and similarly the association was only observed for female (RR 1.46; 95% CI 1.10, 1.94) and not male infants (RR 0.94; 95%CIC 0.72, 1.23). First trimester urinary bisphenol S concentrations showed a suggested risk of preterm birth (RR 1.25; 95%CI 0.82, 1.89), although the small case numbers precluded sex-specific examination. CONCLUSION(S) We found preliminary evidence of associations between mid-to-late pregnancy BPA and early pregnancy paraben concentrations with preterm birth among those with female infants only. Preterm birth risk may be compound, sex, and window specific. Given the limited sample size of this cohort, results should be confirmed in larger studies, including fertile populations.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fenóis
/
Nascimento Prematuro
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Infertilidade
Tipo de estudo:
Diagnostic_studies
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Etiology_studies
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Observational_studies
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Risk_factors_studies
Limite:
Adult
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Female
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Humans
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Male
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Pregnancy
Idioma:
En
Revista:
Fertil Steril
Ano de publicação:
2021
Tipo de documento:
Article