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１资料与方法１．１一般资料 本组６８例患者为我院呼吸内科１９９２年１月～１９９８年１２月住院病人。均有慢性阻塞性肺部疾病（ＣＯＰＤ）病史，且都为急性加重而入院。病史最长３２年，最短５年；年龄最大７８岁，最小４９岁，平均年龄６６．３岁。因ＣＯＰＤ急性加重而
1 Materials and Methods 1.1 General Information 68 patients in this group for our hospital respiratory medicine January 1992 ~ December 1998 inpatients. Have a history of chronic obstructive pulmonary disease (COPD), and are hospitalized for acute exacerbations. The longest history of 32 years, the shortest 5 years; the oldest 78 years old, the youngest 49 years old, with an average age of 66.3 years old. Due to acute exacerbation of COPD