Okamoto Etsuji, Kikuchi Kiyotaka, Endo Ginji
National Institute of Public Health, Department of Health and Welfare Service Research.
J Occup Health. 2013;55(6):511-5. doi: 10.1539/joh.13-0067-br. Epub 2013 Sep 10.
The aim of this study was to assess the risk of developing bile duct cancer among workers in the other printing industry in comparison with workers in all industries in general.
Prevalence of bile duct cancer was compared between workers in the printing industry and age-standardized controls in all other industries using the claims database of the Japan Health Insurance Association, which insures workers of small-medium sized employers of all industries.
Young (aged 30-49) male workers in the printing industry showed an elevated but insignificant standardized prevalence rate ratio (SPRR) for bile duct cancer in comparison with workers in all other industries (SPRR: 1.78; 95%CI: 0.63-5.00). The risk was higher for intrahepatic bile duct cancer but remained insignificant (SPRR: 3.03; 95%CI: 0.52-17.56).
The sharply elevated risk of bile duct cancer observed among proof-printing workers of a printing factory in Osaka may not be generalizable to workers in the printing industry nationwide.
本研究旨在评估与所有行业的工人相比，其他印刷行业工人患胆管癌的风险。
利用日本健康保险协会的理赔数据库，比较印刷行业工人与所有其他行业按年龄标准化的对照人群中胆管癌的患病率，该协会为所有行业中小型雇主的工人提供保险。
与所有其他行业的工人相比，印刷行业的年轻（30 - 49岁）男性工人胆管癌的标准化患病率比值（SPRR）有所升高，但无统计学意义（SPRR：1.78；95%CI：0.63 - 5.00）。肝内胆管癌的风险更高，但仍无统计学意义（SPRR：3.03；95%CI：0.52 - 17.56）。
大阪一家印刷厂的打样工人中观察到的胆管癌风险急剧升高，可能不适用于全国印刷行业的工人。
