| Zha Yongru,Zou Jianming,Lin Zuanxuan,et al.Confounding factors in radiation epidemiology and their comparability between high background radiation areas and control areas in Yangjiang, China[J].Chinese Journal of Radiological Medicine and Protection,1997,17(6):395-398 |
| Confounding factors in radiation epidemiology and their comparability between high background radiation areas and control areas in Yangjiang, China |
| Received:June 03, 1997 Revised:July 16, 1997 |
| DOI： |
| KeyWords:High background radiation Epidemiological survey Confounding factors |
| FundProject: |
| Author Name | Affiliation | | Zha Yongru | Guangdong Institute of Prevention and Treatment of Occupational Diseases, Guangzhou, 510310, China | | Zou Jianming | Guangdong Institute of Prevention and Treatment of Occupational Diseases, Guangzhou, 510310, China | | Lin Zuanxuan | Guangdong Institute of Prevention and Treatment of Occupational Diseases, Guangzhou, 510310, China | | 何伟辉 | Guangdong Institute of Prevention and Treatment of Occupational Diseases, Guangzhou, 510310, China | | 林锦明 | Guangdong Institute of Prevention and Treatment of Occupational Diseases, Guangzhou, 510310, China | | 杨宇华 | Guangdong Institute of Prevention and Treatment of Occupational Diseases, Guangzhou, 510310, China | | 加藤宽夫 | 日本广岛放射影响研究所 |
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| Abstract:: |
| Objective Confounding factors in radiation epidemiology and their comparability among the four different dose-rate groups in high background radiation areas were studied.Methods The demography data were collected by a specific registration method.For the components of diet and life style,the samples were taken by a stratified random sampling method.Results The sex ,age distributions and the life expectancy of the members of a cohort 35 years old and above in the four dose rate groups were similar to each other.The components of diet were constituted mostly of grains and vegetables with less meat,eggs and milk.The percentages of cigarette smokers were 27.7%-31.3% in both male and female subjects and the percentages of alcohol drinkers were 4.0-6.9% in them.Conclusion The results show that there is good comparability between the four dose rate groups except for background radiation level,and it is suggested that the taken food consisting of grains and vegetables may be a beneficial factor leading to low incidence of malignancies in this area. |
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