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KMID : 0371020020350010024
Journal of Preventive Medicine and Public Health
2002 Volume.35 No. 1 p.24 ~ p.32
Pesticides and Cancer Incidence
Sull Jae-Woong

Lee Sang-Wook
Sohn Tae-Yong
Jee Sun-Ha
Nam Chung-Mo
Ohrr Hee-Choul
Abstract
Objective: Few studies have examined the relationship between the risk of cancer and exposure to pesticides in Korea or in other East Asian that have until recently used chlorophenoxy herbicides. The aim of this study was to evaluate the relationship between the exposure to pesticides and cancer incidence.

Methods: We conducted a prospective cohort study with a follow-up period of 13 years (1985-1998). The subjects included 2,687 male and 3,589 female Kangwha Island residents, Koreans aged fifty-five or more as of March 1985, who received a personal health interview and completed a health examination survey. A Cox proportional hazards models were used to estimate relative risks(RR).

Results: At baseline, the mean age of the study participants in 1985 was 66.4 for males and 67.1 for females. During the 13 years follow-up, a total of 300 incidents of cancer in males and 146 in females developed. In males, the total cancer incidence in the highest group was PR, 1.4 (95% CI=1.0-1.9), p for trend=0.041, for digestive organ cancer incidence in the highest group, PR, 1.5 (95% CI=1.0-2.3), p for trend=0.057, for stomach cancer incidence in the highest group, RR, 1.6 (95% CI=0.9-2.8), p for trend=0.094, fo gallbladder cancer incidence in the highest group, PR, 9.1 (95% CI=1.1-77.0). p for trend=0.01 4 were elevated according to the higher frequency of pesticide use per year. In particular, the risk of gallbladder cancer was very high. Although not significant, the risk of liver cancer was higher than in the non-exposed group (in the highest group, PR, 2.0(95% CI=0.7-5.9)). In females, although not significant. breast cancer incidence in the highest exposure group was higher than in the non-exposed group (in the highest group, PR, 4.7 (95% CI=0.8-27.9)).

Conclusions: This study demonstrates that Korean farmers who use pesticides, particularly males, have a significantly higher total cancer incidence, particularly from digestive organ cancers such as, stomach, gallbladder, and liver cancer. In particular, the risk of gallbladder cancer was very high.
KEYWORD
Cancer, Incidence, Pesticides, Gallbladder
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