Abstract
Objective To investigate the effect of sleep quality on depression among the community - dwelling elderly and analyze the mediating effect of perceived stress between them. Methods From May 2015 to July 2015,older adults were enrolled from community in Shenyang( Heping district,Tiexi district and Huanggu district),Dalian( Shahekou district, Ganjingzi district and Xigang district),Jinzhou( Linghe district,Guta district and Taihe district)of Liaoning Province by convenience sampling method. Survey stations were located in the places where older people often held activities,such as parks, squares,and community health service centers. The demographic questionnaire,Pittsburg Sleep Quality Index Scale( PSQI), Chinese version Perceived Stress Scale(CPSS)and the Center for Epidemiologic Studies Depression Scale(CES - D)were used to evaluate the general demographic characteristics,sleep quality,perceived stress and depression. Pearson correlation analysis was conducted on the relation among sleep quality,perceived stress and depression,and the mediating effect of perceived stress between sleep quality and depression was analyzed by SPSS 21. 0 and AMOS 22. 0. Results A total of 1 050 questionnaires were distributed,the number of valid questionnaires were 1 032,valid recovery rate was 98. 3%. The scores of PSQI,CPSS and CES- D were(5. 5 ± 2. 9),(25. 2 ± 8. 1)and(12. 6 ± 8. 9)respectively. There was positive correlation between the score of CES- D and the score of PSQI and CPSS(r = 0. 63,0. 42;P < 0. 01),and there was positive correlation between the score of CPSS and the score of PSQI( r = 0. 36,P < 0. 01). The results of simple linear regression showed that there was a linear regression relationship between sleep quality and depression(β = 0. 460,SE = 0. 028,t = 16. 605,P < 0. 001)and perceived stress(β = 0. 627,SE = 0. 024,t = 25. 856,P < 0. 001). The results of multiple linear regression showed that there was linear regression relationship between sleep quality(β = 0. 277,SE = 0. 034,t = 8. 053,P < 0. 001),perceived stress(β = 0. 291, SE = 0. 034,t = 8. 471,P < 0. 001)and depression. The mediating effect test results showed the following investigation data:χ2 / df = 4. 713,NFI = 0. 926,RFI = 0. 907,IFI = 0. 941,TLI = 0. 925,CFI = 0. 940,GFI = 0. 956,RMSEA = 0. 060. The Bootstrap test results showed 95% CI of the direct and indirect effect of sleep quality on depression excluded 0,the relationship between sleep quality and depression was partly mediated by perceived stress,the value of mediating effect was 0. 129,and the proportion of mediation was 62. 6% (0. 129 / 0. 206). Conclusion Sleep quality plays an indirect effect on depression by the mediating effect of perceived stress among the community - dwelling elderly;perceived stress plays a part mediating effect between sleep quality and depression.关键词
睡眠/抑郁/老年人/觉知压力Key words
Sleep/Depression/Aged/Perceived stress分类
医药卫生
