The Cost-effectiveness of Screening for Diabetic Retinopathy in Hong Kong
Introduction: There is no debate that people with diabetes should be screened for the development of retinopathy which can threaten their sight. However, there is no routine screening for retinopathy in Hong Kong at present. Many overseas countries find that they miss a large proportion of their target population and, with reliance on co-payments for screening, as is the case with the limited opportunistic screening at present, the cost-effectiveness of any routine service in Hong Kong could be reduced as is predicted by Hart's inverse care law.
Aim: This study will determine the potential cost-effectiveness of screening for retinopathy in Hong Kong under a free system and one in which a co-payment is charged.
Methods: Primary care patients attending General Outpatient Clinics on Hong Kong Island for their routine diabetic care will randomly be offered screening either at no charge or with the normal co-payment of $65. Those who are willing and unwilling to be screened will be compared for their clinical, lifestyle and socioeconomic characteristics and those unwilling will be asked their reasons. The uptake of screening at no fee and with a payment will be compared as will the prevalence of retinopathy in the two fee groups. Subsequent screening at one year will be offered at the same fee and uptake again compared.
The principal analyses will (a) identify the characteristics of those willing to be screened and reasons for not being screened (b) the uptake of screening when a co-payment is charged compared to when it is free (c) whether there is a difference in the prevalence of retinopathy between the group willing to pay and those who accept free screening and (d) the uptake of re-screening in year 2.
The resulting cost-effectiveness model will use these data, the cost data collected during the study and overseas data on benefits of treatment to model the cost-effectiveness of screening for retinopathy in Hong Kong if it were to be offered free or with a co-payment. This information will be important to determine the most cost-effective means of implementing this preventative strategy to preserve sight and quality of life.
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Tipo de estudio
Inscripción (Actual)
Fase
- No aplica
Contactos y Ubicaciones
Ubicaciones de estudio
-
-
-
Hong Kong, Porcelana
- Aberdeen General Outpatient Clinic,Hospital Authority
-
Hong Kong, Porcelana
- Department of Community Medicine,The University of Hong Kong
-
Hong Kong, Porcelana
- Eye Institute, Faculty of Medicine, The University of Hong Kong, Hong Kong
-
-
Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
- Niño
- Adulto
- Adulto Mayor
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Inclusion Criteria:
- All diabetic patients who attend the clinic during the study period.
Exclusion Criteria:
- Only if not competent to give informed consent
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Investigación de servicios de salud
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Único
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
|
Otro: free screening group
Subjects in this group receive free diabetic retinopathy screening.
|
The intervention is to provide free screening without charging a co-payment
|
|
Otro: Pay screening group
Subjects in this group receive diabetic retinopathy screening with charging a co-payment.
|
The intervention is charging a co-payment of HK$60 for the Diabetic Retinopathy screening.
|
¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Retinopathy profile in the two groups
Periodo de tiempo: the first year
|
The extent of diabetic retinopathy in two groups were measured in the first year screening.
|
the first year
|
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
|
Subjects' attendance of the screening
Periodo de tiempo: the first year
|
Whether the subject attends the screening was measured and the attendance rate was estimated for two groups in the first year screening.
|
the first year
|
|
Retinopathy profile in the two groups
Periodo de tiempo: the second year
|
The extent of diabetic retinopathy in two groups were measured in the second year screening.
|
the second year
|
|
Subjects' attendance of the screening
Periodo de tiempo: the second year
|
Whether the subject attends the screening was measured and the attendance rate was estimated for two groups in the second year screening.
|
the second year
|
Colaboradores e Investigadores
Patrocinador
Investigadores
- Investigador principal: Sarah M McGhee, PhD, The University of Hong Kong
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio
Finalización primaria (Actual)
Finalización del estudio (Actual)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Estimar)
Actualizaciones de registros de estudio
Última actualización publicada (Estimar)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- UW 08-134
Esta información se obtuvo directamente del sitio web clinicaltrials.gov sin cambios. Si tiene alguna solicitud para cambiar, eliminar o actualizar los detalles de su estudio, comuníquese con register@clinicaltrials.gov. Tan pronto como se implemente un cambio en clinicaltrials.gov, también se actualizará automáticamente en nuestro sitio web. .