Projektname
Engaging older persons in the community to promote frailty prevention and reduce social isolation. 

Subprojekt
COMMUNITY: Creating Opportunities for Managing social isolation and frailty in older persons: exploring public health solutions.

Projektleitung
Bastiaan Van Grootven

INS-Projektteam
Bastiaan Van Grootven
Franziska Zúñiga
Aurora Monticelli
Sabina De Geest

Externe Projektpartner
Uni Basel 
Universitäre Altersmedizin FELIX PLATTER (UAFP)
KU Leuven
University of Queensland

Ort der Datenerhebung
Basel-Stadt
Basel-Landschaft

Laufzeit
2025 bis 2028

Description
Background and rationale for project
Frailty is a major public health challenge. Frailty is a multidimensional syndrome in which a person accumulates impairments in multiple life domains due to ageing. Examples include physical impairments (e.g. reduced mobility), social status (e.g. social isolation) and cognition impairment. Frailty predisposes a person to negative health outcomes and is associated with long-term disability, a lower quality of life, and high costs. As impairments accumulate, persons are less able to participate in society, interact with their direct environment, and become socially isolated. Social isolation contributes to social frailty and physical frailty. Both frailty and social isolation can therefore be considered key outcomes for novel public health solutions.

Overall objective and specific aims
The overall objective is to develop a program theory for engaging older persons in a program that combines physical and social activities to prevent frailty and reduces social isolation, operationalize this program for adoption and implementation in the community setting, and evaluate the effectiveness and implementation in two Swiss Cantons. The ENGAGE project will achieve this through the following aims:

1. To investigate current practice regarding screening and management of older persons’ frailty risk and social isolation in primary and community care, and identify determinants for improving these outcomes in this setting.
2. To investigate experiences and perceptions of older persons concerning their participation in a community program that focusses on physical activity and social engagement, and identify determinants for their participation.
3. To develop a program theory for frailty prevention and reduction of social isolation and to operationalise this in a program that combines physical and social activities that is adopted and implemented in the community setting.
4. To implement the program in two Swiss cantons and test the acceptability and feasibility, and to evaluate its impact on reducing frailty and social isolation in older persons living in the community, and to identify determinants for and costs of implementation.

Methods
A multi-phased mixed methods project methodology will be used, in collaboration with a Patient and Public Involvement (PPI) group. First, a mixed methods study will be performed using QUAN – QUAL explanatory sequential design, including a survey and interviews with healthcare professionals and community stakeholders (Objective 1). Second, a qualitative study using semi-structured interviews with older persons will be conducted, followed by group discussions using a World Café methodology (objective 2). Third, Intervention Mapping will be used to develop a program theory for preventing frailty and reducing social isolation, and will be operationalized in a program in the community that combines physical and social activities (objective 4). Fourth, a pragmatic effectiveness–implementation hybrid type-1 trial will be conducted to evaluate the impact of the program, including its effects on frailty and social isolation. A pilot study will be embedded to evaluate study burden, acceptability and feasibility. A process -and economic evaluation are included to investigate the implementation and inform scale-up strategies and costs.

Expected results
The first program theory for frailty prevention in the community will be developed. This will be the first experimental study combining physical and social activities for frailty prevention and reduction of social isolation. This will be the first project studying implementation of frailty prevention in the community, informing scale-up.