ArticleSouthern African journal of infectious diseases2021
Construct validity and reliability of the generalised anxiety disorder-7 scale in a sample of tuberculosis patients in the Free State Province, South Africa.
Article in Southern African journal of infectious diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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16 citing papers in PubMed.
- Disclosure Events and Psychosocial Well-Being Among Young South African Adults Living with HIV.International journal of behavioral medicine · 2025Trial
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- Assessing anxiety in high-altitude Tibetan communities: validation of a Tibetan version GAD-7.Frontiers in psychology · 2026Article
- Sociodemographic outcomes of childhood trauma experiences among young adults in the rural community of South Africa.Health SA = SA Gesondheid · 2026Article
- Maladaptive Coping Strategies Mediate the Relationship Between Depression and Anxiety and Moderate-to-Heavy Alcohol Use in Young South Africans with HIV.AIDS and behavior · 2026Article
- Prevalence of anxiety symptoms in a Ugandan population sample and psychometric properties of the Generalized Anxiety Disorder-7 scale (GAD-7) in Luganda and Runyoro.BMC psychiatry · 2025Article
- The impact of grit on adolescent resilience in examining longitudinal mental health outcomes in peri-rural South Africa.Research square · 2025Article
- Sociodemographic and Psychosocial Factors Influencing COVID-19 Testing Uptake: Insights from Urban and Rural Communities in South Africa.The American journal of tropical medicine and hygiene · 2025Article
- Family Social Support Mediates the Relationship Between the COVID-19 Pandemic and Psychosocial well-being in a Cohort of Young South Africans Newly Diagnosed with HIV.AIDS and behavior · 2025Article
- Evaluating the Insomnia Severity Index among South African first responders: evidence from classical test theory, Rasch, and Mokken analyses.Frontiers in sleep · 2025Article
- Developing and testing tele-support psychotherapy using mobile phones for depression among youth in Kampala district, Uganda: study protocol for a pilot randomized controlled trial.Frontiers in digital health · 2025Article
- Being Cynical Is Bad for Your Wellbeing: A Structural Equation Model of the Relationship Between Cynicism and Mental Health in First Responders in South Africa.International journal of environmental research and public health · 2024Article
- Predominant approaches to measuring pregnancy-related anxiety in Sub-saharan Africa: a scoping review.BMC public health · 2024Article
- Prevalence and risk factors of anxiety and depression in patients with multi-drug/rifampicin-resistant tuberculosis.Frontiers in public health · 2024Article
- Examining associations between mental health and Chronic Non-Communicable Diseases (C-NCDs) among older adults in Wakiso, Uganda.PloS one · 2024Article
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Abstract
backgroundGeneralised anxiety disorder (GAD) frequently occurs amongst patients with tuberculosis (TB) and contributes to poor quality of life and treatment outcomes. This study evaluated the construct validity and reliability of the GAD-7 scale in a sample of patients with TB in the Free State Province.
methodsA pilot study was conducted amongst a convenience sample of 208 adult patients newly diagnosed with drug-susceptible TB attending primary healthcare (PHC) facilities in the Lejweleputswa District in the Free State. A structured interviewer-administered questionnaire comprising social demographic questions and the GAD-7 scale was used. Confirmatory factor analysis was used to investigate the construct validity of the GAD-7 scale. The reliability of the scale was assessed by calculating Cronbach's alpha.
resultsThe analysis showed that a modified two-factor (somatic symptoms and cognitive -emotional symptoms) model, in which the items 'Not being able to stop or control worrying' and 'Worrying too much about different things' were allowed to covary (Comparative Fit Index: 0.996, Tucker-Lewis Index: 0.993, Root Mean Square Error of Approximation: 0.070, 90% confidence interval: 0.032-0.089), fitted the data better than a unidimensional (generalised anxiety) or an unmodified two-factor model. The indicators all showed significant positive factor loadings, with standardised coefficients ranging from 0.719 to 0.873. The Cronbach's alpha of the scale was 0.86.
conclusionThe modified two-factor structure and high internal consistency respectively provide evidence for construct validity and reliability of the GAD-7 scale for assessing GAD amongst patients with TB. Studies are necessary to assess the performance of this brief scale under routine TB programme conditions in the Free State.
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