Data from: Validation of Quality-of-Life assessment tool for Ethiopian old age people

Background: Reliable quality of life assessment is critical for
identifying health issues, evaluating health interventions, and
establishing the best health policies and care packages. The World Health
Organization Quality of Life-Old Module is a tool for assessing the
subjective quality of life in old age people. It's validated and
available in more than 20 languages, except Amharic. Hence, this study was
intended to translate it into Amharic language and validate it among old
age people in Ethiopia. Methods: A cross-sectional study was conducted
among 180 community-dwelling old age people in Ethiopia, from January 16
to March 13, 2021. Psychometric validation was achieved through Cronbach’s
alpha of the internal consistency reliability test, and construct validity
from confirmatory factor analysis. Results: The study participants aged
from 60 to 90 years old with a mean age of 69.44. Females made up 61.7% of
the population, and 40% of them could not read and write. The results
showed a relatively low level of quality of life, with the total
transformed score of 58.58 ± 23.15. The Amharic version of the World
Health Organization Quality of Life-Old Module showed a Cronbach’s Alpha
value of 0.96 and corrected item-total correlations of more than 0.74.
Confirmatory factor analysis confirmed the six-factor model with a
chi-square (X2) of 341.98 with a p-value less than 0.001. The comparative
fit index (CFI) was 0.98, Tucker-Lewis’s index (TCL) was 0.97, and the
root mean square error of approximation (RMSEA) was 0.046. Conclusion: The
Amharic version of the World Health Organization Quality of Life-Old
Module indicated good internal consistency reliability and construct
validity. The tool can be utilized to provide care to Ethiopian
community-dwelling old age people.