Abstract: The social convoy model and the socioemotional selectivity theory，which have been adopted to study the social networks of elderly people in the Western societies，are tested in the Chinese context to shed light on the important factors affecting social isolation of the elderly in China．Employing data from China Longitudinal Aging Social Survey ( CLASS) ，this paper examines the current situation of family and friend isolation of the Chinese elderly，and analyzes the determinants of social isolation using logistic regression models．The results show that ageing increases the risk of friend isolation，but restrain the possibility of family isolation．A comparison of the determinants of family isolation with those of friend isolation suggests that family characteristics are the main predicting factors for the elderly family isolation，while health status is the major determinant of friend isolation of the Chinese elderly.Socioeconomic status，social participation and social environment are also significant influencing factors．

Keywords:  Social Convoy Model, Socioemotional Selectivity Theory, Family Isolation, Friend Isolation

摘要： 文章运用西方的社会护航模型(SCM)和社会情绪选择理论(SST),并结合中国本土理论对中国老年人的社会网络进行分析,以此揭示老年人社会隔离的相关因素。基于"中国老年社会追踪调查"(CLASS)数据,将社会隔离分解为家庭和朋友隔离两个维度,采用Logistic回归模型对老年人陷入社会隔离的相关因素进行了分析。结果表明,衰老并非仅为老年人的社会网络带来消极变化,增龄伴随着老年人朋友隔离的风险上升,但是其陷入家庭隔离的可能性却出现下降。家庭特征是老年人陷入家庭隔离的主要预测因素,健康状况是导致老年人产生朋友隔离的主要因素;老年人的社会经济地位、社会参与和社会环境也对他们的家庭隔离和朋友隔离产生重要影响。

关键词: 社会护航模型, 社会情绪选择理论, 家庭隔离, 朋友隔离