观察指标2.1 应用一般资料问卷，调查老年人姓名、性别、年龄、经济状况

Observation indicators <br>2.1 Use general information questionnaires to investigate general information such as the name, gender, age, and economic status of the elderly; <br>2.2 Use the Social Support Rating Scale (SSRS) to investigate the social support status of the elderly; <br>2.3 Use the Activity of Daily Living Ability Scale (ADLs) ) To investigate the daily activity ability of the elderly; <br>2.4 Use the Lubben Social Network Scale (LSNS-6) to investigate the social isolation status of the <br>elderly ; 2.5 Use the Geriatric Depression Scale (GDS-15) to investigate the depression status of the elderly in the community; <br>2.6 Use of loneliness Scale (UCLA) to investigate the loneliness status of the elderly; <br>2.7 Use the Health Concise Status Scale (SF-36) to investigate the health self-evaluation status of the elderly. <br>3 Research approach <br>questionnaire survey and semi-structured interviews <br>4 Existing equipment conditions <br>4.1 Researchers have a certain knowledge and understanding of the subject research content through literature search, review and related data query; <br>4.2 The elderly population in Qingdao is large and the sample size is sufficient; <br>4.3 Support from college teachers and community staff; <br>4.4 Support for research funding.

Observe the indicator<br>2.1 Use the general information questionnaire to investigate the names, genders, ages, economic status and other general information of the elderly;<br>2.2 Use the Social Support Assessment Scale (SSRS) to investigate the social support of older persons;<br>2.3 Applying the Daily Activity Power Table (ADLs) to investigate the daily activity capacity of older persons;<br>2.4 Use the Lubben Social Network Scale (LSNS-6) to investigate the social isolation of the elderly;<br>2.5 The depression status of the elderly in the community was investigated using the Depression Scale for Old Age (GDS-15);<br>2.6 Using the Loneliness Scale (UCLA) to investigate loneliness in older people;<br>2.7 The health self-assessment status of the elderly was investigated using the Health Concise Condition Scale (SF-36).<br>3 Research approach<br>Questionnaires and semi-structured interviews<br>4 Existing equipment conditions<br>4.1 Through literature retrieval, review and related information inquiry, the researchers have a certain understanding and understanding of the research content of the subject;<br>4.2 Qingdao city elderly population is large, the sample size is sufficient;<br>4.3 Support from college teachers and community workers, etc.;<br>4.4 Research funding support.

Observation index<br>2.1 general information questionnaire was used to investigate the name, gender, age and economic status of the elderly;<br>2.2 social support rating scale (SSRs) was used to investigate the social support of the elderly;<br>2.3 the activities of daily living (ADLs) were used to investigate the activities of daily living (ADLs) in the elderly;<br>2.4 the status of social isolation of the elderly was investigated by using the Lubben Social Network Scale (lsns-6);<br>2.5 using the Geriatric Depression Scale (GDS-15) to investigate the depression status of the elderly in the community;<br>2.6 the loneliness status of the elderly was investigated by UCLA;<br>2.7 SF-36 was used to investigate the self-rated health status of the elderly.<br>3 research approaches<br>Questionnaire survey and semi-structured interview<br>4 existing equipment conditions<br>4.1 the researchers have a certain understanding of the research content through literature retrieval, review and related information query;<br>4.2 the elderly population in Qingdao is large and the sample size is sufficient;<br>4.3 support from college teachers and community staff;<br>4.4 research funding support.<br>