Development and effectiveness of a user-centered mobile application for informal caregivers of people living with dementia: randomized controlled trial
BMC Geriatrics, cilt.26, sa.1, 2026 (SCI-Expanded, SSCI, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 26 Sayı: 1
- Basım Tarihi: 2026
- Doi Numarası: 10.1186/s12877-026-08235-7
- Dergi Adı: BMC Geriatrics
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Social Sciences Citation Index (SSCI), Scopus, CINAHL, EMBASE, MEDLINE, Directory of Open Access Journals, Biomedical Reference Collection: Corporate Edition (EBSCO), Health Research Premium Collection (ProQuest)
- Anahtar Kelimeler: Caregivers, Caregiver burden, Dementia, Digital intervention, Mobile applications, Neuropsychiatric symptoms, Quality of life, User-centered design
- Sağlık Bilimleri Üniversitesi Adresli: Evet
Özet
Background: Dementia places substantial physical, psychological, and social demands on informal caregivers, and caregiving needs may change across the dementia trajectory as cognitive, behavioral, and functional changes alter day-to-day care demands. Digital interventions may not fully address caregivers’ evolving and heterogeneous needs and preferences. This study aimed to develop a user-centered mobile application informed by caregiver-identified needs and preferences across the dementia trajectory and to evaluate its effectiveness. Methods: A randomized controlled trial was conducted following a qualitative intervention-development phase. The intervention was developed in accordance with the Medical Research Council framework for complex interventions and informed by principles of person-centered dementia care and qualitative interviews with informal caregivers. The application provided dementia education; communication and daily-care guidance organized to reflect changing caregiving needs; guidance for behavioral and psychological symptoms; caregiver self-care and stress-management resources; information on formal and informal support services; and customizable reminders. Caregivers were randomized to receive usual care with access to the mobile application for 8 weeks or usual care alone. Outcomes included caregiver burden (Zarit Burden Interview), quality of life (WHOQOL-BREF), neuropsychiatric symptoms (Neuropsychiatric Inventory), and caregiver distress related to these symptoms. System usability was assessed post-intervention in the intervention group. Outcomes were assessed at baseline and week 8 using repeated-measures analysis of variance. Results: A total of 86 caregivers were randomized, of whom 75 were included in the analysis (intervention, n = 37; control, n = 38). Significant group-by-time interactions were observed for overall quality of life (p < 0.001) and the psychological domain (p < 0.001), with greater improvements in the intervention group than in the control group. No significant group-by-time interactions were observed for caregiver burden, neuropsychiatric symptom severity, or caregiver distress. The application demonstrated good usability at week 8. Conclusions: The user-centered mobile application was associated with improvements in overall and psychological quality of life among participants included in the 8-week analysis, while no significant intervention effects were observed for caregiver burden, neuropsychiatric symptoms, or caregiver distress. Larger studies with longer follow-up and more detailed assessment of application engagement are needed to evaluate the durability and broader effects of the intervention. Trial registration: This trial was registered at ClinicalTrials.gov (Registration number: NCT06179667, Date of registration: 27 November 2023).