Skip to main content

Table 1 Elevated lung cancer mortality risk in intermediate and high exposure groups in original unpublished study

From: Selected science: an industry campaign to undermine an OSHA hexavalent chromium standard

Mean Exposure to Cr(VI)* OR** 95% CI
Low (< 1.2 u g/m3) Ref --
Intermediate (1.2 – <5.8 u g/m3) 4.9 1.5 – 16.0
High (≥ 5.8 u g/m3) 20.2 6.2 – 65.4
  1. Adapted from Table 17 in: Final report: Collaborative cohort mortality study of four chromate production facilities, 1958–1998 [53].
  2. *Mean Exposure to Cr(VI) derived by dividing cumulative urinary chromium exposure by 0.77 (conversion factor for air concentration), and then dividing by 45 years (OSHA's working life assumption); see text for details.
  3. **Odds Ratio