Validation of an ultra-short global quality of life scale in a large population-based health survey

Quality of life (QoL) assessment is essential in health-related research and clinical settings, offering insights into individuals' well-being and functioning. This study validated the Essential QoL-3 (EQoL-3), an ultra-short scale assessing essential dimensions of QoL, for use in epidemiologic...

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Veröffentlicht in:	PloS one 2024-08, Vol.19 (8), p.e0307539
Hauptverfasser:	Vederhus, John-Kåre, Timko, Christine, Birkeland, Bente, Haugland, Siri Håvås, Gabrielsen, Karin Berle
Format:	Artikel
Sprache:	eng
Schlagworte:	Adolescent Adult Aged Analysis Biology and Life Sciences Data collection Drug addiction Emotions Epidemiology Factor analysis Female Happiness Health aspects Health Surveys Humans Inclusion Male Medicine and Health Sciences Mental disorders Mental health Middle Aged Norway People and Places Personal Satisfaction Physical Sciences Polls & surveys Prevention Psychological aspects Psychometrics - methods Public health Quality of Life Regression analysis Reproducibility of Results Research and Analysis Methods Risk factors Social Sciences Substance abuse Substance use Surveys Validity Well being Young Adult
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description	Quality of life (QoL) assessment is essential in health-related research and clinical settings, offering insights into individuals' well-being and functioning. This study validated the Essential QoL-3 (EQoL-3), an ultra-short scale assessing essential dimensions of QoL, for use in epidemiological research and clinical settings. Data from a 2021 national survey in Norway (N = 17,487) were used. Three items on the EQoL-3 assess life satisfaction, happiness, and meaningfulness on a 0-10 scale. Discriminant validity was assessed by comparing the EQoL-3 with the Satisfaction with Life Scale (SWLS) and by examining latent mean differences between individuals with adverse life experiences (ALE+) and those without such experiences (ALE-). Convergent validity was evaluated through latent regression analyses comparing the EQoL-3 with a perceived mastery scale and a mental distress scale. The discriminant validity of the EQoL-3 was less than optimal when compared with the SWLS. Nonetheless, a multigroup confirmatory factor analysis revealed that the EQoL-3 score was 1.42 (95% CI = 1.33-1.50, p < 0.001) lower in the ALE+ group compared to the ALE- group, providing support for discriminant validity. Convergent validity was established with a positive association between EQoL-3 and mastery (β = 1.75, 95% CI = 1.70-1.80, p < 0.001) and a negative association between the EQoL-3 and mental distress (β = -2.64, 95% CI = -2.71/-2.59, p < 0.001). The EQoL-3 is a reliable measure of QoL. Its streamlined nature facilitates quick administration, making it a valuable tool for clinicians and researchers in diverse settings. Its inclusion of the eudaimonic dimension, as well as its exclusion of health items in the measure itself, distinguishes it from traditional HQoL measures, making it suitable for mental health and substance use disorder research.
doi_str_mv	10.1371/journal.pone.0307539
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Nonetheless, a multigroup confirmatory factor analysis revealed that the EQoL-3 score was 1.42 (95% CI = 1.33-1.50, p < 0.001) lower in the ALE+ group compared to the ALE- group, providing support for discriminant validity. Convergent validity was established with a positive association between EQoL-3 and mastery (β = 1.75, 95% CI = 1.70-1.80, p < 0.001) and a negative association between the EQoL-3 and mental distress (β = -2.64, 95% CI = -2.71/-2.59, p < 0.001). The EQoL-3 is a reliable measure of QoL. Its streamlined nature facilitates quick administration, making it a valuable tool for clinicians and researchers in diverse settings. 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subjects	Adolescent Adult Aged Analysis Biology and Life Sciences Data collection Drug addiction Emotions Epidemiology Factor analysis Female Happiness Health aspects Health Surveys Humans Inclusion Male Medicine and Health Sciences Mental disorders Mental health Middle Aged Norway People and Places Personal Satisfaction Physical Sciences Polls & surveys Prevention Psychological aspects Psychometrics - methods Public health Quality of Life Regression analysis Reproducibility of Results Research and Analysis Methods Risk factors Social Sciences Substance abuse Substance use Surveys Validity Well being Young Adult
title	Validation of an ultra-short global quality of life scale in a large population-based health survey
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