Skip to main content
main-content

01.12.2017 | Research | Ausgabe 1/2017 Open Access

Health and Quality of Life Outcomes 1/2017

Is the Hospital Anxiety and Depression Scale (HADS) a valid measure in a general population 65–80 years old? A psychometric evaluation study

Zeitschrift:
Health and Quality of Life Outcomes > Ausgabe 1/2017
Autoren:
Ingrid Djukanovic, Jörg Carlsson, Kristofer Årestedt

Abstract

Background

The HADS (Hospital Anxiety and Depression Scale) aims to measure symptoms of anxiety (HADS Anxiety) and depression (HADS Depression). The HADS is widely used but has shown ambiguous results both regarding the factor structure and sex differences in the prevalence of depressive symptoms. There is also a lack of psychometric evaluations of the HADS in non-clinical samples of older people. The aim of the study was to evaluate the factor structure of the HADS in a general population 65–80 years old and to exam possible presence of differential item functioning (DIF) with respect to sex.

Methods

This study was based on data from a Swedish sample, randomized from the total population in the age group 65–80 years (n = 6659). Confirmatory factor analyses (CFA) were performed to examine the factor structure. Ordinal regression analyses were conducted to detect DIF for sex. Reliability was examined by both ordinal as well as traditional Cronbach’s alpha.

Results

The CFA showed a two-factor model with cross-loadings for two items (7 and 8) had excellent model fit. Internal consistency was good in both subscales, measured with ordinal and traditional alpha. Floor effects were presented for all items. No indication for meaningful DIF regarding sex was found for any of the subscales.

Conclusions

HADS Anxiety and HADS Depression are unidimensional measures with acceptable internal consistency and are invariant with regard to sex. Despite pronounced ceiling effects and cross-loadings for item 7 and 8, the hypothesized two-factor model of HADS can be recommended to assess psychological distress among a general population 65–80 years old.
Literatur
Über diesen Artikel

Weitere Artikel der Ausgabe 1/2017

Health and Quality of Life Outcomes 1/2017 Zur Ausgabe