Interpreting biomarker data from the COPHES/DEMOCOPHES twin projects: Using external exposure data to understand...

Area of Science:

• Environmental Health
• Human Biomonitoring
• Public Health Policy

Background:

• The COPHES/DEMOCOPHES projects conducted the first harmonized human biomonitoring survey across 17 European countries in 2011-2012.
• Data from over 1800 mother-child pairs included lifestyle information and measurements of cadmium, cotinine, phthalates, and mercury.

Purpose of the Study:

• To determine if differences in biomarker levels among DEMOCOPHES-participating countries could be explained by external environmental quality and lifestyle data.
• To assess the utility of biomonitoring data for evidence-informed policy-making.

Main Methods:

• Collected individual lifestyle data and measured biomarkers (cadmium, cotinine, phthalates, mercury) in urine and hair samples from mother-child pairs.
• Gathered external data on environmental quality and lifestyle from national databases for 13 participating countries.
• Utilized statistical analyses to correlate biomarker levels with external data.

Main Results:

• A significant positive correlation was found between national fish consumption and mercury levels in hair.
• The strength of antismoking legislation showed a significant inverse relationship with urinary cotinine levels.
• Indications suggest associations between urinary cadmium levels and environmental/food quality.

Conclusions:

• Biomonitoring data, when combined with external environmental and lifestyle information, can effectively explain observed differences in biomarker levels across countries.
• These findings highlight the value of human biomonitoring in evaluating and informing public health policies.