The first part of their investigation studied breast-cancer rates in 13,500 women who had breast implants (most of them silicone) and 4,000 who did not. Results: the implant patients showed no added risk for breast cancer when compared with the controls.

• 研究报告的第一部分表明，在13500个乳房植入者(大部分是硅酮)和4000个未做植入物的妇女中，乳腺癌发病率的结果是：与对照组比较，植入者并没有增加乳腺癌的患病几率。