Results: Exposureto hydrazine was positively associated with lung cancer incidence (estimated rate ratio for high vs low exposurewith 20-year lag = 2.5; 95% confidence interval = 1.3-4.9) and with colorectal cancer incidence (2.2; 1.0-4.6).
Results: Exposureto hydrazine was positively associated with lung cancer incidence (estimated rate ratio for high vs low exposurewith 20-year lag = 2.5; 95% confidence interval = 1.3-4.9) and with colorectal cancer incidence (2.2; 1.0-4.6).
结果：联氨暴露与肺癌发生率(高暴露对低暴露在20年后估计的率比为2.5；95%信赖区间为1.3-4.9)及直肠癌发生率(率比为2.2;95%信赖区间为1.0-4.6)呈正相关，而且联氨暴露与肺癌、直肠癌发生率皆有剂量反应关系。