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为了解橡胶行业恶性肿瘤的发病情况。我们对天津4个橡胶加工厂进行了18年的回顾性调查。调查对象为4个橡胶厂1970年1月1日至19S7年12月31日。18年的在册职工。调查资料完整,随访率达96.18％。癌瘤的Ⅰ,Ⅱ级诊断率达95.93％。观察组分为
To understand the incidence of malignant tumors in the rubber industry. We conducted an 18-year retrospective survey of 4 rubber processing plants in Tianjin. Four rubber plants were surveyed from January 1, 1970 to December 31, 1957. 18 years of registered workers. Survey data integrity, follow-up rate of 96.18%. Cancer Ⅰ, Ⅱ grade diagnostic rate of 95.93%. Observation component is