Results Bone mass of women decreased from the time of perimenopause, and more quickly after menopause.A faster decrease was found during the first 4-year after menopause than the time after.

• 结果妇女腰椎和髋部的骨密度值自围绝经期即开始缓慢下降，绝经以后下降速度加快，其中绝经后前4年内下降迅速，以后则相对缓慢。