ArticleBMC geriatrics2022
Psychometric properties and modification of the 15-item geriatric depression scale among Chinese oldest-old and centenarians: a mixed-methods study.
Article in BMC geriatrics, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.
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33 citing papers in PubMed, 43 citations in OpenAlex.
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- Depression severity and neuropsychiatric symptoms among nursing home residents with late-life depression: a moderated mediation model of sleep quality and resilience.BMC psychiatry · 2025Article
- Effect of a blended indoor and outdoor multicomponent structured exercise on depressive symptoms in Hong Kong older adults: study protocol of a randomized controlled trial.BMC public health · 2025Article
- The delta/alpha ratio in sleep EEG increases with the severity of depression in patients over 50 years old.BMC psychiatry · 2025Article
- Association between neuropsychiatric symptoms and neurodegeneration-related plasma biomarkers in older adults with and without clinical dementia in the Democratic Republic of the Congo.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025Article
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- Moderating effect of instrumental activities of daily living on the relationship between loneliness and depression in people with cognitive frailty.BMC geriatrics · 2025Article
- Mediation of nutritional status between the number of teeth and depressive symptoms in multi-ethnic older adults from Western China.Frontiers in public health · 2025Article
- Association between wooden toy engagement and cognitive function among Chinese older adults: a cross-sectional study.Frontiers in psychology · 2025Article
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Authors and funding
8 authors at 6 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe 15-item Geriatric Depression Scale (GDS-15) shows good performance in detecting depression among older persons, but its applicability has not been well studied in non-Western oldest-old adults and centenarians. This study aimed to evaluate the psychometric property of the GDS-15 and a simplified version among a large representative longevous population in China.
methodsA total of 1624 individuals (786 oldest-old persons aged from 80 to 99 years; 838 centenarians aged 100+ years) participated in this study. Home interviews with structured questionnaires were conducted to collect sociodemographic data. Depressive symptoms were measured using the Chinese GDS-15 version. We implemented mixed methods for the psychometric evaluation of the GDS-15. Cronbach's α coefficient and item-total correlation coefficients were used to evaluate the internal consistency. A standard expert consultation was conducted to test the content validity of each item. Multiple factor analyses were used to explore the optimal factor structure and measurement invariance.
resultsThe α coefficient of the GDS-15 was 0.745, while two items impaired the overall consistency reliability. Nineteen experts rated the applicability for each item and provided removal suggestion. Five items with less validity were removed, and a simplified 10-item GDS model with three-factor structure was proposed as an optimal solution. The GDS-10 model showed factorial equivalence across age, sex, residence, and education in multi-group confirmatory factor analyses.
conclusionsThe original GDS-15 has acceptable internal reliability, known-group validity, and concurrent validity among Chinese community-dwelling oldest-old and centenarians; however we provided preliminary evidence indicating that individual items related to somatic function or social activities may not be applicable for this population. The modified GDS-10 can be proposed as a potentially more practical and comprehensible instrument for depression screening.
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