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Factorial Structure...
Factorial Structure and Validity of Depression (PHQ-9) and Anxiety (GAD-7) Scales after Traumatic Brain Injury
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Teymoori, Ali (författare)
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Gorbunova, Anastasia (författare)
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Haghish, Fardzadeh E (författare)
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Real, Ruben (författare)
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Zeldovich, Marina (författare)
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Wu, Yi-Jhen (författare)
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Polinder, Suzanne (författare)
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Asendorf, Thomas (författare)
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Menon, David (författare)
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Steinbüchel, Nicole von (författare)
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- Brorsson, Camilla (bidragsgivare)
- Umeå universitet,Institutionen för kirurgisk och perioperativ vetenskap
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- Koskinen, Lars-Owe D., Professor, 1955- (bidragsgivare)
- Umeå universitet,Neurovetenskaper
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- Sundström, Nina (bidragsgivare)
- Umeå universitet,Institutionen för strålningsvetenskaper
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(creator_code:org_t)
- 2020-03-23
- 2020
- Engelska.
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Ingår i: Journal of Clinical Medicine. - : MDPI. - 2077-0383. ; 9:3
- Relaterad länk:
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https://doi.org/10.3...
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https://umu.diva-por... (primary) (Raw object)
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https://www.mdpi.com...
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https://urn.kb.se/re...
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https://doi.org/10.3...
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http://kipublication...
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Abstract
Ämnesord
Stäng
- Background: The dimensionality of depression and anxiety instruments have recently been a source of controversy. Objectives and Design: In a European-wide sample of patients after Traumatic Brain Injury (TBI), we aim to examine the factorial structure, validity, and association of the Patient Health Questionnaire for depression (PHQ-9) and the Generalized Anxiety Disorder (GAD-7) instruments. This study is based on longitudinal observational data. We conducted analyses of factorial structure and discriminant validity of outcomes six-months after TBI. We also examined the prevalence, co-occurrence, and changes of scores on the PHQ-9 and GAD-7 at 3-, 6-, and 12-month post-TBI assessments. Participants: At six-months post-TBI assessment, 2137 (738 (34.5%) women) participants completed the PHQ-9 and GAD-7 questionnaires. For the longitudinal analysis, we had 1922 participants (672 (35.0%) women). Results: The results of exploratory factor analysis suggested a general latent construct underlying both PHQ-9 and GAD-7 measures. Confirmatory factor analyses showed a slight improvement in the fit indices for the bifactorial model. The Omega hierarchical test clearly differentiated two subfactors of PHQ-9 and GAD-7 items over and above the underlying general factor; however, most of the variance (85.0%) was explained by the general factor and the explained variance of the subfactors was small. The PHQ-9 and GAD-7 performed similarly in detecting post-traumatic stress disorder (PTSD). As defined by conventional cut-offs, depression and anxiety have different prevalence rates in the sample. The scales also differed in their relationships with the short form of health survey (SF-36v2) subscales. The longitudinal analysis showed high stability of depression and anxiety symptoms: 49–67% of the post-TBI patients with comorbid depression and anxiety reported the persistence of the symptoms over time. Discussion: The factorial structure analysis favors a general latent construct underlying both depression and anxiety scales among patients after TBI. We discuss the implications our findings and future research directions.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Psykiatri (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Psychiatry (hsv//eng)
Nyckelord
- depression
- anxiety
- bifactorial model
- validity
- comorbidity
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- ref (ämneskategori)
- art (ämneskategori)
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Teymoori, Ali
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Gorbunova, Anast ...
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Haghish, Fardzad ...
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Real, Ruben
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Zeldovich, Marin ...
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Wu, Yi-Jhen
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visa fler...
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Polinder, Suzann ...
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Asendorf, Thomas
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Menon, David
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Steinbüchel, Nic ...
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Brorsson, Camill ...
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Koskinen, Lars-O ...
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Sundström, Nina
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visa färre...
- Om ämnet
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- MEDICIN OCH HÄLSOVETENSKAP
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MEDICIN OCH HÄLS ...
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och Klinisk medicin
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och Psykiatri
- Artiklar i publikationen
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Journal of Clini ...
- Av lärosätet
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Umeå universitet
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Karolinska Institutet