Persistent pollutants
PFAS in Ronneby water tracks higher cholesterol
Open access · cc by · source: Europe PMC
Swedish adults on PFAS-contaminated water had 7–9% higher total cholesterol and LDL, with high odds of cholesterol >6.2 mmol/L as PFOS/PFHxS rose.
Study at a glance
- Design
- Cross-sectional — Open sampling of Ronneby/Karlshamn adults comparing serum PFAS and lipids by exposure group
- N
- N=1945 · 1,945 adults aged 20–60
- Population
- Adults from PFAS-contaminated Ronneby and control Karlshamn, Sweden
- Outcome
- Serum cholesterol/LDL associated with PFOS and PFHxS
Structured fields used in claim comparison tables when every cited study has a complete layer.
Key findings
Exposed Ronneby sera were dominated by PFOS (median 157 ng/ml) and PFHxS (median 136 ng/ml). Cholesterol and LDL were 7–9% higher than in the control town. Odds of high cholesterol were about 1.3 per ln-PFAS unit. PFOS and PFHxS were too correlated (r≈0.9) to separate.
Methodology
In 2013–2014 open sampling, 1,945 adults aged 20–60 from Ronneby and Karlshamn were grouped as controls, recently exposed, or uncertain/historical exposure; serum PFAS and lipids were compared with regression on ln-PFAS.
Limitations
Cross-sectional lipids cannot prove that PFAS caused heart disease. Open sampling is not a random population sample, and highly correlated PFAS prevent compound-specific claims.
How this study connects
Role on claims
Each row is a claim on a concept or method page where this paper supports, challenges, or qualifies the statement. Roles are hand-checked — not a model guess.
Ronneby drinking-water contamination produced extreme serum PFAS. Among 1,945 adults aged 20–60, exposed sera were dominated by PFOS (median 157 ng/ml) and PFHxS (median 136 ng/ml). Cholesterol and LDL were 7–9% higher than in the control town; odds of high cholesterol were about 1.3 per ln-PFAS unit. PFOS and PFHxS were too correlated (r ≈ 0.9) to separate.
Evidence for the claim as stated.
PFAS biomonitoring is not one concentration or one health claim. Ronneby exposed medians are PFOS 157 ng/ml and PFHxS 136 ng/ml with 7–9% higher cholesterol; Veneto mortality work uses median PFOA 14 ng/mL as an ecological marker; Veneto youth BP ORs sit at 1.06–1.12 with small absolute shifts. Compound, concentration range and endpoint all differ.
Evidence for the claim as stated.
In Ronneby versus Karlshamn, regression on ln-PFAS found cholesterol and LDL 7–9% higher in the exposed town and odds of high cholesterol about 1.3 per ln-PFAS unit. PFOS (median 157 ng/ml) and PFHxS (median 136 ng/ml) were correlated at r ≈ 0.9, so the OR is not compound-specific.
Evidence for the claim as stated.
PFAS logistic results do not agree on which compound or outcome carries the signal. Ronneby's high-cholesterol OR is about 1.3 per ln-PFAS in a PFOS/PFHxS-dominated mixture. Shanghai selected low-concentration PFBS (AOR 1.64/1.81) while the highest-median compound, PFOA at 6.98 ng/ml, was not the selected HDP predictor. Age-5 overweight associations differed by country. A single 'PFAS odds ratio' is not portable.
Evidence for the claim as stated.
Open questions
Tensions this paper is part of
From concept pages' “where studies disagree.” Disagreement means the same question; scope means different assays, populations, or outcomes.
PFAS biomonitoring is not one concentration or one health claim. Ronneby exposed medians are PFOS 157 ng/ml and PFHxS 136 ng/ml with 7–9% higher cholesterol; Veneto mortality work uses median PFOA 14 ng/mL as an ecological marker; Veneto youth BP ORs sit at 1.06–1.12 with small absolute shifts. Compound, concentration range and endpoint all differ.
PFAS logistic results do not agree on which compound or outcome carries the signal. Ronneby's high-cholesterol OR is about 1.3 per ln-PFAS in a PFOS/PFHxS-dominated mixture. Shanghai selected low-concentration PFBS (AOR 1.64/1.81) while the highest-median compound, PFOA at 6.98 ng/ml, was not the selected HDP predictor. Age-5 overweight associations differed by country. A single 'PFAS odds ratio' is not portable.
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