1　资料来源对我院 1 998年 1～ 1 0月份住院病历进行随机抽样 ,每月 1 0份 ,涉及内科 ( 67份 )、外科、儿科、眼科、结核病科等 1 5个病区。 1 0 0份病历中 ,最少住院 3d,最多 62 d,平均 ( 1 5.1± 1 .5) d,年龄最小 6个月 ,最大 85岁 ,其中 65岁以上者 2 4例。2　不合理用药2 1 Data sources Randomly sampled hospital records from January to October in our hospital in 1 998. There were 10 cases per month involving 15 wards of internal medicine (67), surgery, paediatrics, ophthalmology, and tuberculosis. Among the 100 medical records, at least 3 days were hospitalized for a maximum of 62 days, with an average of (1 5.1 ± 1.5) days, the minimum age was 6 months, and the maximum was 85 years, of which those over 65 years old were 24. 2 Irrational medication 2