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Published on: November 7, 2017
Cadmium exposure and end-stage renal disease
L Hellström1, C G Elinder, B Dahlberg
1Departments of Environmental Medicine and Public Health and Renal Medicine, County Council of Kalmar, Oskarshamn, Sweden.
Summary
Environmental cadmium exposure, even at low levels, significantly increases the risk of developing end-stage renal disease (ESRD). This risk is higher for women and increases with exposure intensity, highlighting cadmium as a key factor in kidney disease development.
Area of Science:
- Environmental Health
- Nephrology
- Toxicology
Background:
- Environmental cadmium exposure is linked to kidney damage and tubular proteinuria.
- Occupational and environmental cadmium exposure are significant public health concerns.
Purpose of the Study:
- To investigate the association between low-level cadmium exposure and end-stage renal disease (ESRD).
- To quantify the risk of renal replacement therapy (RRT) in populations with varying degrees of cadmium exposure.
Main Methods:
- A population-based study in Sweden using records of individuals undergoing RRT since 1978.
- Exposure levels were categorized as high (occupational), moderate (<2 km), low (2-10 km), or unexposed (>10 km) based on proximity to cadmium battery production.
Main Results:
- The incidence of RRT was higher in cadmium-exposed populations compared to unexposed groups (MH-RR 1.8).
- Women exposed to cadmium showed a higher risk of RRT (MH-RR 2.3).
- Age-standardized rate ratios for RRT increased with cadmium exposure levels, from 1.4 (low) to 2.3 (high).
Conclusions:
- Occupational and low-level environmental cadmium exposure are significant determinants for ESRD development.
- Cadmium exposure poses a considerable risk to kidney health, necessitating public health interventions.
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