Examining the psychometric properties of the Patient Health Questionnaire-9 and Generalized Anxiety Disorder-7 among young urban South African women
Examining the psychometric properties of the Patient Health Questionnaire-9 and Generalized Anxiety Disorder-7 among young urban South African women
Background: valid, reliable, and easy-to-administer scales are crucial for identifying mental health conditions, especially in LMICs where such scales tend not to be validated. This study aims to address this gap by investigating the psychometric properties and factorial structure of the PHQ-9 and GAD-7 in a sample of young women in Soweto, South Africa.
Methods: the PHQ-9 and GAD-7 were administered to 6028 women aged 18-28 years old. Cronbach's alpha, Mokken scale analysis, and Confirmatory Factor Analysis were used to provide support for the internal consistency and construct validity of these scales.
Results: both scales demonstrated good internal consistency (α = 0.81 for PHQ-9 and α = 0.84 for GAD-7). Internal consistency reliability was further supported by positive inter-item correlations and item-by-scale correlations for all items on both measures. CFA of the PHQ-9 and GAD-7 showed a reasonable fit for the 1-factor model and 2-factor models (depression and anxiety with somatic and cognitive subtyp
Anxiety, Depression, generalized anxiety disorder, Patient Health Questionnaire, psychometric properties, South Africa
61-70
Hart, Claire
87bb652f-3258-4f14-bcda-54876988a9c1
Draper, Catherine E.
5032d1f5-0c2a-44be-8bdb-6e4967d49e14
Soepnel, Larske M.
e342b0a4-2e1d-4ae0-b0cf-9f7c274ebad0
Godongwana, Motlatso
5fce44ea-a893-4e30-a842-2726be3718c4
Mabetha, Khuthala
6b05becb-751a-4c79-b95f-8413ee0c17b1
Nyati, Lukhanyo H.
18d7ac34-0c97-4f40-9195-5eee0a8ed7ff
Crouch, Simone H.
5664c146-6ab8-4c8f-8925-15b3f86d2a02
Norris, Shane A.
1d346f1b-6d5f-4bca-ac87-7589851b75a4
26 September 2024
Hart, Claire
87bb652f-3258-4f14-bcda-54876988a9c1
Draper, Catherine E.
5032d1f5-0c2a-44be-8bdb-6e4967d49e14
Soepnel, Larske M.
e342b0a4-2e1d-4ae0-b0cf-9f7c274ebad0
Godongwana, Motlatso
5fce44ea-a893-4e30-a842-2726be3718c4
Mabetha, Khuthala
6b05becb-751a-4c79-b95f-8413ee0c17b1
Nyati, Lukhanyo H.
18d7ac34-0c97-4f40-9195-5eee0a8ed7ff
Crouch, Simone H.
5664c146-6ab8-4c8f-8925-15b3f86d2a02
Norris, Shane A.
1d346f1b-6d5f-4bca-ac87-7589851b75a4
Hart, Claire, Draper, Catherine E., Soepnel, Larske M., Godongwana, Motlatso, Mabetha, Khuthala, Nyati, Lukhanyo H., Crouch, Simone H. and Norris, Shane A.
(2024)
Examining the psychometric properties of the Patient Health Questionnaire-9 and Generalized Anxiety Disorder-7 among young urban South African women.
Journal of Affective Disorders, 369, .
(doi:10.1016/j.jad.2024.09.145.).
Abstract
Background: valid, reliable, and easy-to-administer scales are crucial for identifying mental health conditions, especially in LMICs where such scales tend not to be validated. This study aims to address this gap by investigating the psychometric properties and factorial structure of the PHQ-9 and GAD-7 in a sample of young women in Soweto, South Africa.
Methods: the PHQ-9 and GAD-7 were administered to 6028 women aged 18-28 years old. Cronbach's alpha, Mokken scale analysis, and Confirmatory Factor Analysis were used to provide support for the internal consistency and construct validity of these scales.
Results: both scales demonstrated good internal consistency (α = 0.81 for PHQ-9 and α = 0.84 for GAD-7). Internal consistency reliability was further supported by positive inter-item correlations and item-by-scale correlations for all items on both measures. CFA of the PHQ-9 and GAD-7 showed a reasonable fit for the 1-factor model and 2-factor models (depression and anxiety with somatic and cognitive subtyp
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Accepted/In Press date: 21 September 2024
e-pub ahead of print date: 23 September 2024
Published date: 26 September 2024
Keywords:
Anxiety, Depression, generalized anxiety disorder, Patient Health Questionnaire, psychometric properties, South Africa
Identifiers
Local EPrints ID: 497000
URI: http://eprints.soton.ac.uk/id/eprint/497000
ISSN: 0165-0327
PURE UUID: c60c27b3-d228-4cf4-8e88-c951934586cd
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Date deposited: 09 Jan 2025 18:01
Last modified: 10 Jan 2025 03:05
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Contributors
Author:
Claire Hart
Author:
Catherine E. Draper
Author:
Larske M. Soepnel
Author:
Motlatso Godongwana
Author:
Khuthala Mabetha
Author:
Lukhanyo H. Nyati
Author:
Simone H. Crouch
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