Results The percentages of FFM and LM were significantly lower in COPD patients than in control group and the percentage of fat mass in COPD patients were significantly higher.

• 结果老年COPD患者FFM占体重比重（FFM%25）、LM%25均低于对照组,脂体质（FM）%25则高于对照组,差异均有统计学意义;