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[Liver enzyme abnormalities among oil refinery workers].
Fernando Martins Carvalho1, Annibal Muniz Silvany Neto, João Luiz Barberino Mendes
1Departamento de Medicina Preventiva, Universidade Federal da Bahia, Salvador, BA, Brazil. fmc@ufba.br
Revista De Saude Publica
|January 18, 2006
Summary
Occupational exposure in oil refineries significantly increases the risk of liver enzyme abnormalities. This risk is independent of lifestyle factors like alcohol consumption and obesity.
Area of Science:
- Occupational health
- Hepatology
- Industrial hygiene
Background:
- Oil refinery work environments pose potential risks to worker health.
- Liver enzyme abnormalities can indicate underlying liver dysfunction.
Purpose of the Study:
- To identify risk factors for liver enzyme abnormalities in oil refinery workers.
- To investigate the role of occupational exposure in liver health.
Main Methods:
- A case-control study was conducted using data from 1982-1998.
- 150 workers with liver enzyme abnormalities (cases) and 150 healthy workers (controls) were analyzed.
- Logistic regression models were used to calculate odds ratios and confidence intervals.
Main Results:
- Workers in production sectors had a significantly higher risk of liver enzyme abnormalities (OR=5.7).
- This increased risk persisted even after controlling for alcohol, obesity, and hepatitis history.
- Most cases occurred in production sector workers between 1992-1994.
Conclusions:
- Occupational exposure is a significant factor contributing to liver enzyme abnormalities in refinery workers.
- Lifestyle factors like obesity and alcohol consumption are additional, but distinct, risk factors.