一项对7735名中年英国男子进行9.2年的预期研究观察,证实当清蛋白<40g/L时,死亡率为23·1000~(-1)/年;而≥40g/L时,死亡率为4·1000~(-1)/年。另一项对15511名40岁病人的研究中,报道血中清蛋白<34g/L,临床死亡率为14％;≥34g/L时,死亡率为4％。表明清蛋白可预测临床死亡率和住院期的长短以及复发情况。本项研究旨在证实,对70岁以上老 A prospective study of 9,225 years of 7 735 middle-aged British men confirmed that when the albumin was less than 40 g / L, the mortality rate was 23.1000-1 / year, whereas at 40 g / L, the mortality rate It is 4 · 1000 ~ (-1) / year. Another study of 15511 40-year-old patients reported a serum albumin <34 g / L with a clinical mortality rate of 14% and a mortality rate of 4% at ≥34 g / L. Indicated albumin can predict the clinical mortality and length of hospitalization and recurrence. This study aims to confirm that the older than 70 years old