Association between perfluorinated compound concentrations in cord serum and birth weight using multiple regression...

Area of Science:

• Environmental Health
• Toxicology
• Perinatal Epidemiology

Background:

• Per- and polyfluoroalkyl substances (PFASs) are widespread environmental contaminants.
• Previous research has focused on perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) effects on birth weight.
• The impact of other PFASs on birth outcomes remains understudied.

Purpose of the Study:

• To examine the association between cord serum concentrations of nine PFASs and birth weight in newborns from Seoul, South Korea.
• To investigate the potential effects of both dominant (PFOA, PFOS) and other PFASs on infant birth weight.

Main Methods:

• A cross-sectional survey of 118 newborns in Seoul, South Korea.
• Analysis of cord serum samples for nine different PFAS concentrations.
• Multiple regression analyses were used to assess the relationship between PFAS levels and birth weight.

Main Results:

• Seven PFASs were detected in cord serum, with PFOA and PFOS being the most prevalent.
• Mean concentrations were 1.11 ng/mL for PFOA and 0.87 ng/mL for PFOS.
• No statistically significant associations were observed between the measured PFAS concentrations and birth weight in the study population.

Conclusions:

• This study did not find evidence linking exposure to nine specific PFASs, including PFOA and PFOS, to altered birth weight in Seoul newborns.
• Further research with larger sample sizes or different populations may be warranted to fully understand PFASs' impact on birth outcomes.