为研究职业司机患癌症的危险度及其致癌因素,作者对瑞士日内瓦州的6630名男性职业司机进行了历史前瞻性队列调查。研究人群主要为在1949年持有有效驾驶执照和1949～1961年政府发放汽车驾驶执照的全部司机,执照类型主要为货车、出租车、公共汽车和长途汽车(6630人)。不包括1900年以前出生的和在1900年以后出生但仅持有普通私人驾驶执照的司 In order to study the risk of cancer and the carcinogenicity of the occupational driver, a prospective cohort of 6630 male drivers in Geneva, Switzerland, was conducted. The majority of the study population consisted of all drivers who held a valid driving license in 1949 and a driver’s license issued by the government from 1949 to 1961. The major types of licenses were trucks, taxis, buses and coaches (6,630). Excludes divisions born before 1900 and born after 1900 but holding only ordinary private driver’s licenses