Calidad de vida en adultos mayores: análisis factoriales de las versiones abreviadas del WHOQoL-Old en población chilena Factor analysis of abbreviated versions of the WHOQoL-Old in Chilean older people

Background: The increase in elderly population demands the needfor new health measures that are reliable and valid. Aim: To compare the factor structure of the Quality ofLife Scale WHOQoL-Old ofthe World Health Organization with the three proposed abbreviated versions ofthe scale. Material and Methods: We performed confirmatory factor analysis on data collectedfrom 804 older people, aged 70 ± 6 years (66% females). Results: One of the unifactorial models that incorporate six questions had goodness offit values greater than 0.95 in the non-normed fit index and below .05 in the root-mean square error of approximation. Conclusions: The abbreviated version tested is a valid and reliable questionnaire to be used in Chilean older people.