The result indicated that support vector machine method has the obvious superiority in the forecast of breast cancer incidence rate based on gain quantity of trace element.
结果表明：在根据微量元素摄入量进行乳腺癌发病率预测方面，支持向量机方法有明显的优势。
The incidence rate of breast cancer had risen from 30.9 per 100，000 women in 1983 to 40.8 in 1999.
乳癌的发病率由1983年的每十万名妇女有30.9名患上升至1999年的40.8人。
The incidence and mortality rate of breast cancer in American women were 4-5 times higher than Chinese and Japanese.
中日地区与美国比较，美国乳腺癌的发病率及死亡率高于中、日4—5倍。
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