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. 2005 Apr;47(4):335-42.
doi: 10.1097/01.jom.0000158739.56427.24.

Did TCDD exposure or service in Southeast Asia increase the risk of cancer in air force Vietnam veterans who did not spray agent orange?

Marian Pavuk  1 , Joel E Michalek, Arnold Schecter, Norma S Ketchum, Fatema Z Akhtar, Karen A Fox
Affiliations

Did TCDD exposure or service in Southeast Asia increase the risk of cancer in air force Vietnam veterans who did not spray agent orange?

Marian Pavuk et al. J Occup Environ Med. 2005 Apr.

Abstract

Objective: We sought to examine cancer incidence in 1482 Air Force veterans who served in Southeast Asia (SEA) and who were not occupationally exposed to herbicides.

Methods: Cancer incidence between 1982 and 2003 was determined by record review and Cox proportional hazards models were used to estimate risk ratios across serum 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) and years served in SEA categories.

Results: All sites cancer risk increased with TCDD (relative risk = 1.6, 95% confidence interval = 1.2-2.2). The risk of prostate cancer increased with years of SEA service but not with TCDD. TCDD and years of SEA service interacted with all sites cancer; the risk was greatest in those with the highest TCDD levels and the longest time served in SEA.

Conclusions: These results suggest nonoccupational exposures to TCDD or other factors while in SEA may contribute to cancer risk in these veterans.

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