１资料来源及方法社区老年人的人口学资料：来源于医学院人事处、计财处及老干部科。资料内容主要有姓名、性别、年龄、婚姻状况、住址（包括楼栋门牌号）、电话（内外线、手机）、经济收入、有无照顾看护、人数、是否长住等。躯体疾病资料来源：①医学院校医院医疗保健档案；? 1 Sources and Methods Demographic data of the elderly in the community: Sourced from the Personnel Division of the Medical School, the Department of Finance, and the Department of Veteran Affairs. The main contents of the data include name, gender, age, marital status, address (including building and building number), telephone (inside and outside lines, mobile phones), economic income, whether there is care and attention, number of people, long-term stay, etc. Physical diseases Source: 1 Medical college hospital health care archives;