老年抑郁量表城乡项目功能差异分析  

Differential Item Functioning of Geriatric Depression Scale for Urban- rural Differences

作　　者：李现文[1] 刘海宁[2] 安静[3] 

机构地区：[1]南京医科大学,江苏省南京市210029 [2]承德医学院 [3]昌吉学院

出　　处：《中国全科医学》2016年第9期1002-1005,共4页Chinese General Practice

基　　金：江苏省高校自然科学研究面上资助经费项目(15KJB320007);南京医科大学科技发展基金重点项目(2013NJMU026);江苏省一级学科重点学科护理学开放基金项目(NYHL201408)

摘　　要：目的探讨老年抑郁量表(GDS-5)在城乡项目功能差异(DIF)中的应用。方法 2012年1—2月利用GDS-5对老龄化期望研究中的550例老年人进行资料收集。采用χ2检验分析GDS-5各条目〔条目1"您对您现在的生活是否基本上满意"、条目2"您是否经常感到无聊、厌倦"、条目3"您是否常感到生活没有希望"、条目4"您是否常更想待在家里而不喜欢外出"、条目5"您是否觉得像现在这样活着毫无意义"〕的城乡差异;采用单维性检验分析主要指标〔比较拟合指数(CFI)、非规范拟合指数(TLI)、近似误差均方差(REMSEA)、标准化残差均方根(SRMR)〕;采用EASY-DIF软件包进行GDS-5城乡DIF的探测。结果条目2、条目3的城乡差异比较,差异有统计学意义(P<0.05);其余条目的城乡差异比较,差异无统计学意义(P>0.05)。单维性检验显示,CFI、TLI、REMSEA、SRMR均符合适配标准,表明GDS-5各条目测量的是同一概念特质,具有较好的结构效度。EASY-DIF软件包分析结果显示,条目2、条目3的MH值比较,差异有统计学意义(P<0.05);其他条目的 MH值比较,差异无统计学意义(P>0.05)。条目2、条目3的ΔαMH值分别为0.915、1.279。结论 GDS-5的条目3存在中等强度城乡DIF问题,今后在解释抑郁城乡差异时需注意条目城乡DIF问题。Objective To explore the differential item functioning（ DIF） of geriatric depression scale- 5（ GDS-5）for urban- rural differences. Methods From January to February in 2012,the data of 550 elderly people enrolled in a previous research of expectation on aging by GDS-5 were collected. DIF of GDS-5 for urban- rural differences was analyzed by χ2test. There were five items： 1. ＂ Are you basically satisfied with your current life＂; 2. ＂ Do you often feel bored and weary＂;3. ＂ Do you often feel there is no hope for life＂; 4. ＂ Do you often prefer to stay at home rather than go out＂; 5. ＂ Do you often feel current life is pointless＂. Unidimensional test was conducted to analyze CFI,TLI,REMSEA and SRMR,and EASY- DIF software was employed to investigate the DIF of GDS-5 for urban- rural differences. Results Significant rural- urban differences existed in item 2 and item 3（ P〈0. 05）; no significant rural- urban differences existed in other items（ P〈0. 05）.Unidimensional test showed that CFI,TLI,REMSEA and SRMR all accorded with fit standard,which suggested that each item of GDS-5 was measuring the same concept characteristic and had good construct validity. EASY- DIF software analysis showed that item 2 and item 3 were significantly different in MH value（ P〈0. 05） and no significant difference of MH value existed among other items（ P〉0. 05）. The ΔαMHof item 2 was 0. 915 and that of item 3 was 1. 279. Conclusion The third item of GDS-5 has moderate DIF for urban- rural differences. DIF for urban- rural differences should be considered in the future comparison of depression between urban and rural elders.

关 键 词：抑郁 项目功能差异 城乡因素 

分 类 号：R395.1[哲学宗教—心理学]