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Table 2 Barriers and challenges to recruitment

From: Advancing engagement methods for trials: the CORE study relational model of engagement for a stepped wedge cluster randomised controlled trial of experience-based co-design for people living with severe mental illnesses

Barriers and challenges to recruitment and participation [1, 6, 10, 29–33]

Examples from the literature

Geographical factors

Relocation of participants, transportation difficulties

Illness-related barriers

Fear of relapse as a result of participation, hospitalisation, being medicated, medication change or other treatment issues, severity of illness, early phase of illness, unstable mental state, symptoms of mental illness, acceptance of illness

Level of support

Lack of support to take part in research, ’no one to go with’

Belief in one’s capabilities

Low self-efficacy, self-esteem or confidence, lack of motivation, goals and aspirations

Fear, suspicion and/or distrust of researchers and/or general distrust of research

Fear that research could be harmful or cause excessive worry for the person, concerns about confidentiality

General inconvenience of participating in research

Takes too much time, lengthy process involving transportation and attendance

Stigma of mental illness

Fear of being asked about sensitive subjects, invitation to take part in research exacerbates feelings of being labelled by mental illness

System-level/organisational barriers

Competing academic centres studying the same group or conflicting schedules with other programs, tensions between academic institutions and community centres, relying on referrals from clinicians, professionals’ resistance to patients’ participation

Health literacy and language barriers

Lack of familiarity with complex scientific and medical language, low level of health literacy, language difficulties

Research-specific challenges

High commitment of engagement with participants in research, resource-intensive tasks, recruitment difficulties such as problems in finding/recruiting people capable of and interested in participating