综合性医院住院患者年龄分布特征的探讨

Exploring the Characteristics of Age Distribution of Inpatients Discharged from General Hospitals

目的探讨医院住院者的疾病种类、住院费用、住院天数的年龄分布特征.方法采用共计55万余住院者的综合性医院病案首页数据库数据,以入院日期与出生日期来计算每一住院者的实足年龄,按出院第一诊断的ICD-9编码进行疾病分类.结果住院者年龄分布曲线存在一个低谷和四个高峰;除20～49岁年龄组外,其余年龄女性住院者比率均低于男性;肿瘤、循环系统疾病等住院者人数随年龄变化具有特定的分布特征.结论病案首页数据库数据蕴藏着丰富的信息,是疾病统计的宝贵资源.用它来探讨住院者年龄分布特征具有一定的合理性.

Objective Explore the characteristics of age distribution of inpatients. Methods Calculate chronological age by the difference between admitted hospital date and birth date using more than 550,000 inpatients from medical record database for general hospitals. Classify the disease using ICD - 9 codes of the first diagnosis of leaving hospital. Results There are a valley and four peaks for the curve of age distribution of inpatients. Except the age 20-- 49, the frequency of inpatients of the other age for female is less than for male. Many diseases such as tumour, the disease of circulatory system, have themselves characteristics of age distribution. Conclusion The data of medical record database contains plentiful information, it is a precious resource for disease statistics, and it seems to be reasonable using it to explore the characteristics of age distribution of inpatients.