Vitor Quality of Life Scale for the Elderly: evidence of validity and reliability

被引:3
|
作者
da Silva, Jose Vitor [1 ,2 ,3 ]
Baptista, Makilim Nunes [2 ]
机构
[1] Wenceslau Braz Sch Nursing, Rua Joao Faria Sobrinho,61 Apt 301,Bairro Vargin, BR-37501080 Itajuba, MG, Brazil
[2] Univ Sao Francisco, Campus Itatiba, Itatiba, SP, Brazil
[3] Sapucai Valey Univ UNIVAS, Pouso Alegre, MG, Brazil
来源
SPRINGERPLUS | 2016年 / 5卷
关键词
Quality of life; Aged; Validation studies; Psychometrics; VERSION; PEOPLE; VALIDATION; INSTRUMENT;
D O I
10.1186/s40064-016-3130-4
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Purpose: To assess validity and reliability of the Vitor Quality of Life Scale for the Elderly (VITOR QLSE). Methods: A sociodemographic questionnaire, a mental status questionnaire, the VITOR QLSE, the World Health Organization Quality of Life Instrument old module (WHOQOL-OLD), and the Baptista Depression Scale adult version (EBADEP-A) were administered to a non-probabilistic sample of 617 elderly persons living in Brazil. Exploratory factor analysis was performed to reduce the 70 items of the first version of the VITOR QLSE. Construct validity was then evaluated; the VITOR QLSE was tested against the WHOQOL-OLD and EBADEP-A. One hundred and ninety-two randomly selected participants completed the instrument again 7-15 days after the first interview, providing a test-retest reliability estimate. Results: Exploratory factor analysis reduced the 70 items to 48 items grouped into six domains: autonomy and psychological, environment, physical independence, family, health, and social domains. The total explained variance was 39.46 %. Cronbach's alpha for overall reliability was 0.93 and ranged from 0.79 for health to 0.90 for physical independence. Pearson's correlation coefficient (r) was 0.76 for test-retest reliability, and 0.56 and -0.57 for the correlation of VITOR QLSE scores with those of the WHOQOL-OLD and EBADEP-A, respectively. Conclusion: The final version of the VITOR QLSE has 48 items grouped into six domains and shows adequate validity and reliability. The rapid aging of the population and reduced number of instruments in the Latin America, and more specifically in Brazil, assessing quality of life in the elderly justify the development of a valid and reliable tool.
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页数:13
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