Study for a Randomised Controlled Trial: Effect of an Interdisciplinary Psycho-educational Intervention Programme on Caregivers of Dependent Older Adults

Background: Caring for an older dependent adult with cognitive impairment can have negative consequences for the family caregiver. Interdisciplinary interventions are necessary to address their needs jointly and comprehensively. While attempts have been made to improve their situation from different disciplines in isolation, a collaborative approach is required to ensure the best possible outcome.

Methods: A parallel, randomized, controlled clinical trial with two arms will be conducted at the Occupational Therapy Teaching and Care Unit (UDATO) and the Municipal Psychosocial Support Unit for the Elderly (UMAPS), both of which belong to the University of Salamanca and are in agreement with the City Council of Salamanca, Spain. The trial will also be conducted at the University Care Centre of Salamanca (CAUSA). People aged 60 years or older will be recruited as family caregivers of dependent older adults with cognitive impairment in a chronic situation. Participants will be divided into two groups: the intervention group (IG) will carry out an interdisciplinary psychoeducational programme from the perspective of psychology and occupational therapy, and the control group (CG) will carry out a controlled follow-up. Participants will complete 12 sessions over a period of 3 months, followed by three monthly reinforcement sessions after the intervention. At the beginning and end of the intervention, participants will be assessed and socio-demographic data will be collected along with the following scales: the Spanish version of the Caregiver Burden Interview (CBI), the Spanish version of the Center for Epidemiologic Studies-Depression Scale (CES-D), the Psychosocial Support Questionnaire adaptation (PSQ), the General Health Questionnaire (GHQ), the World Health Organization Quality of Life Assessment - AGE (WHOQOL-AGE) and the Bayer-Activities of Daily Living Scale (B-ADL).

Discussion: The objective of this study is to enhance conventional clinical practice for family caregivers of dependent older adults. This will be achieved through an interdisciplinary psychoeducational intervention that aims to reduce overload and depressive symptomatology, increase social support, improve health and perceived quality of life, and enhance understanding of the syndrome/illness. The intervention will also focus on managing difficult situations associated with day-to-day caregiving, managing emotions and associated erroneous beliefs, and promoting self-care. Additionally, the study aims to improve the functionality of the cared-for person.

The work of sequencing, randomisation, recruitment and allocation of the trial sample will be carried out by research staff who are not involved in the assessments or interventions of each group, thus avoiding any potential bias in the trial.

Participants will also be blinded and will not know which group they have been allocated to and therefore which intervention they will receive. In order to minimise any contamination between groups, the assessment process will be carried out by external research staff who will perform the measurements and who have been previously trained and educated to avoid subjective bias in the process, as they will be unaware of the intervention group to which they have been assigned, thus masking the blinded assessment by third parties in the clinical trial. In addition, the researchers responsible for the statistical analysis of the trial will be blinded in order to increase the rigour of the trial process and thus the scientific quality.