Critical review of the epidemiological literature on the potential cardiovascular effects of occupational carbon disulfide exposure

Int Arch Occup Environ Health. 2002 Aug;75(6):365-80. doi: 10.1007/s00420-001-0309-x. Epub 2002 Feb 13.


Objectives: Occupational carbon disulfide (CS(2)) exposure has been associated with a variety of health effects since its introduction in the mid-19th century. Much of the epidemiological interest, especially since the 1960s, has focused on associations with cardiac effects. However, considerable differences in study approach, disease outcome, CS(2) exposure level, and control of confounding factors have produced mixed results and conclusions. This critical review presents a synthesis of the most relevant and best quality studies to better understand these associations.

Methods: Using specific criteria to assess methodological and scientific quality, we identified 37 studies with the potential to inform on at least one of the following questions: (1) Has a relationship between CS(2) exposure and coronary heart disease (CHD) mortality been reasonably demonstrated? If so, at what apparent exposure levels has it been observed? (2) Among studies of workers routinely exposed to CS(2) at levels greater than 20 ppm, have any health effects or indicators of CHD been observed consistently? (3) Among occupational groups exposed to CS(2) at levels less than 20 ppm, have any health effects or indicators of CHD been observed consistently?

Results: Several CHD-related effects have been examined relative to various levels of occupational CS(2) exposure. Overall, there was remarkably little consistency of CHD effects observed, including CHD mortality.

Conclusions: Although a physiological effect of CS(2) exposure on CHD is plausible, the epidemiological evidence for an association between CS(2) exposure and various cardiac risk indicators is mixed. The only somewhat consistent finding, of CS(2) exposure on total and/or LDL cholesterol level, may be due to residual confounding by other time-dependent risk factors. If real, however, it appears to be of small magnitude and uncertain clinical importance.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Adult
  • Asia / epidemiology
  • Carbon Disulfide / adverse effects*
  • Causality
  • Coronary Disease / chemically induced*
  • Coronary Disease / epidemiology*
  • Electrocardiography
  • Epidemiologic Studies
  • Europe / epidemiology
  • Female
  • Humans
  • Male
  • Maximum Allowable Concentration
  • Middle Aged
  • North America / epidemiology
  • Occupational Exposure / adverse effects*
  • Occupational Exposure / analysis
  • Risk Factors


  • Carbon Disulfide