Improving the Recruitment and Retention in the Intensive Diabetes Prevention Program at Hong Kong in District Health Centers (IDPP-DHC)
Optimizing Implementation of the Intensive Diabetes Prevention Program in District Health Centres: A Hybrid Type 3 Study to Enhance Recruitment and Retention for Prediabetes Management
The IDPP provides lifestyle support for people with prediabetes at DHCs in Hong Kong . However, low recruitment and retention limit its impact. This study aims to improve recruitment and retention by examining the benefits of enhanced participant engagement, staff training, and structured reminders and follow-up compared with usual program delivery.
Panoramica dello studio
Stato
Stato
Condizioni
Condizioni
Intervento / Trattamento
Intervento / Trattamento
Descrizione dettagliata
Objectives: The IDPP provides lifestyle support for people with prediabetes at DHCs in Hong Kong. However, low recruitment and retention limit its impact. This study aims to examine whether optimized implementation strategies improve recruitment and retention while maintaining or improving participants' health outcomes.
Hypotheses to be tested: Compared with usual program delivery. optimized implementation strategies will improve recruitment. retention, and other outcomes while maintaining the clinical outcomes.
Design and subjects: This is a implementation study using a two arms cluster randomized controlled trial. The study will recruit 170 adults aged 18 or above with prediabetes.
Instruments: Program records and structured checklists will assess participation and delivery of the implementation strategies. The Chinese Patient Perceptions of Empowerment Scale and the Chinese 12-item Short Form Health Survey version 2 will assess empowerment and quality of life. Interviews will explore participants' and staff members' experiences.
Intervention: The intervention group will receive the one-year IDPP with enhanced nurse consultations, staff training, appointment reminders, and follow-up after missed appointments. Nurse consultation will include personal goal-setting and shared decisions about lifestyle changes. The control group will receive the usual local IDPP services.
Main outcomes: The primary outcomes are recruitment and retention rates. Other implementation outcomes include acceptability, adoption and sustainability. Secondary health outcomes include blood sugar control, BMI, quality of life and empowerment.
Data analysis: Generalized estimating equations will examine changes in clinical outcomes over time and differences between groups. Recruitment and retention rates will be compared between groups. Interview will undergo thematic analysis.
Expected results: The optimized strategies are expected to help more people join and remain in the IDPP while maintaining or improving health outcomes. The findings will inform the delivery and long-term use of diabetes prevention services in community settings.
Tipo di studio
Tipo di studio
Iscrizione (Stimato)
Iscrizione
Fase
Fase
- Non applicabile
Contatti e Sedi
Contatto studio
Contatto studio
- Nome: Arkers Kwan Ching Wong
- Numero di telefono: 852+60324152
- Email: arkers.wong@polyu.edu.hk
Criteri di partecipazione
Criteri di ammissibilità
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Descrizione
Inclusion Criteria:
- Aged 18 years or older
- A baseline HbA1c level of 6.0% to 6.4%
- An existing appointment for services provided by a DHC
Exclusion Criteria:
- A diagnosis of diabetes mellitus
- Current use of oral hypoglycemic agents or medications known to cause significant weight changes
- Coexisting conditions that prevent participation, such as active malignancy or cognitive impairment
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Ricerca sui servizi sanitari
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Doppio
Numero di armi
Armi e interventi
Gruppo di partecipanti / ArmGruppo di partecipanti / Arm |
Intervento / TrattamentoIntervento / Trattamento |
|---|---|
|
Sperimentale: IDPP With Optimized Implementation Strategies
Participant will receive the one year IDPP with enhanced nurse consultations and follow-up. |
The implementation includes an enhanced nurse consultations. Nurses will help participants understand prediabetes, set personal goals and review lifestyle changes. DHC staff will send reminders three days before scheduled consultations. Provider training and ongoing feedback will support program delivery. |
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Comparatore attivo: Usual IDPP
Participants will receive the one year IDPP according to existing DHC services. |
The usual IDPP offers four voluntary group education sessions delivered by DHC staffs. There is also a nurse consultation at the DHC. |
Cosa sta misurando lo studio?
Misure di risultato primarie
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Recruitment and Retention rates
Lasso di tempo: 12 - month
|
Feasibility (Primary outcome: Recruitment and Retention rates) Recruitment will be calculated as the proportion of eligible patients who agree to participate in the IDPP out of the total eligible population that reached the DHCs. Retention rate will be defined as the proportion of participants who complete both nurse consultation sessions and at least two of the four group-based educational sessions over a one-year period. |
12 - month
|
Misure di risultato secondarie
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Acceptability
Lasso di tempo: 12 - month
|
Acceptability will be evaluated using semi-structured interviews with participants and providers following the implementation phase. |
12 - month
|
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Adoption
Lasso di tempo: 12 - month
|
Adoption will assess the extent to which participants and providers engage with and adhere to the optimized IDPP strategies. |
12 - month
|
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Appropriateness
Lasso di tempo: 12-month
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The perceived relevance and compatibility of the implementation strategies with participant needs, existing workflows, and center resources. Data will be collected through semi-structured interviews with participants and staff. |
12-month
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Fidelity
Lasso di tempo: 12 - month
|
Fidelity, or the extent to which the implementation strategies are delivered as consistently and as intended |
12 - month
|
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Implementation cost
Lasso di tempo: 12 m- month
|
Implementation cost will be assessed from an organizational perspective, capturing direct cost associated with delivering the optimized IDPP. Data will be collected through tracking staff time and operational expenses, and by conducting analysis of incremental cost-effectiveness. |
12 m- month
|
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Sustainability
Lasso di tempo: 12 - month
|
Sustainability will be assessed as the extent to which the optimized strategies remain integrated into routine DHC operations after external research support ends. |
12 - month
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HbA1c
Lasso di tempo: Baseline, 6-month, 12-month, 18-month
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Mean change in HbA1c level will be measured from blood samples drawn by DHC nurses and analyzed to reflect average blood glucose levels over the previous 2-3months. |
Baseline, 6-month, 12-month, 18-month
|
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BMI
Lasso di tempo: Baseline, 6-month, 12-month, 18-month
|
Change from baseline in BMI, calculated as weight in kilograms divided by height in meters squared. |
Baseline, 6-month, 12-month, 18-month
|
|
Lipid profile
Lasso di tempo: Baseline, 6-month, 12-month, 18-month
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Lipid profile ( including cholesterol level, high-density lipoprotein, and low-density lipoprotein) will be collected by DHC nurses. |
Baseline, 6-month, 12-month, 18-month
|
|
Perceptions of empowerment
Lasso di tempo: Baseline, 6-month, 12-month, 18-month
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Perceptions of empowerment will be measured using the Chinese version of the Patient Perceptions of Empowerment Scale (PPES) , an 11-item validated tool with a content validity index of 0.93. The PPES evaluates empowerment across four domains: information (three items), decision-making (two items), individualized autonomy (three items), and staff-management (three items). This tool has proven reliable for assessing empowerment in clinical and research settings. |
Baseline, 6-month, 12-month, 18-month
|
|
Quality of life
Lasso di tempo: Baseline, 6-month, 12-month, 18-month
|
QoL will be assessed using the Chinese version of the 12-item Short Form Health Survey version 2 (SF-12), which has demonstrated reliability in local populations. |
Baseline, 6-month, 12-month, 18-month
|
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Health services utilization
Lasso di tempo: Baseline, 6-month, 12-month, 18-month
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Health services utilizations will be assessed by tracking unscheduled visits to general outpatient departments, general practitioners, emergency departments, and hospitals during the six months preceding each data collection timepoint. |
Baseline, 6-month, 12-month, 18-month
|
Collaboratori e investigatori
Sponsor
Sponsor
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Inizio studio (Stimato)
Inizio studio
Completamento primario (Stimato)
Completamento primario
Completamento dello studio (Stimato)
Completamento dello studio
Date di iscrizione allo studio
Primo inviato
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Primo Inserito
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento pubblicato
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
Altri numeri di identificazione dello studio
- IDPP-20261202
- 23241241 (Altro numero di sovvenzione/finanziamento: Health and Medical Research Fund)
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