The lowest death rate for healthy women who had never smoked was in the high end of the ideal body mass index range —between 22.5 and 24.9.

研究中，从不吸烟的妇女的BMI值介于22.5-24.9之间，属正常范围，死亡率最低。

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The lowest death rate for healthy women who had never smoked was in the high end of the ideal body mass index range — between 22.5 and 24.9.

研究中，从不吸烟的妇女的BMI值介于22.5-24.9之间，属正常范围，死亡率最低。

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Methods:The index potential years of life lost (PYLL) and rate of PYLL were used to analyze the cancer death data of all death survey from 1990-1992 in Shandong province.

方法：利用减寿年数和减寿率分析指标对山东省1990～ 1992年全死因调查中的肿瘤死亡资料进行分析。

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