The doubling of the risk of bone fractures held true een after taking into account the mostly elderly subjects' reduced bone mineral density and higher risk of sustaining falls.

甚至在考虑了通常老年人的骨密度较低而连续摔倒的风险较高之后，骨折的风险仍然增大了一倍。

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The doubling of the risk of bone fractures held true even after taking into account the mostly elderly subjects' reduced bone mineral density and higher risk of sustaining falls.

甚至在考虑了通常老年人的骨密度较低而连续摔倒的风险较高之后，骨折的风险仍然增大了一倍。

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Study found that female smokers smoke every 10 years, bone mineral density is reduced by 2.3%-3.3% fall in bone density leading to fractures and osteoporosis incidence rate rose significantly.

研究发现，女烟民每吸烟10年，骨矿物质密度就会降低2.3%―3.3%，骨质密度下降会导致骨折和骨质疏松症发病率大增。

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