Exploring the interplay between dementia, multiple health conditions and couplehood: A qualitative evidence review and meta-ethnography.

Background: On average, people with dementia live with 4.6 additional health conditions. Additionally, two thirds of carers of people with dementia are spouses, and are also likely to live with multimorbidity, given that older age is strongly associated with an increase in health conditions. Consequently, living with dementia and multimorbidity is often a shared experienced as a couple. However, research has not explored how living with both dementia and multimorbidity may impact on couplehood. Method: We conducted a qualitive evidence review using a meta-ethnographic approach, to answer the following question: In what way (if any) does living with dementia and multimorbidity impact on couplehood? No papers were found on couplehood, dementia and multimorbidity, therefore the review consists of a meta-synthesis of couples' experiences of living with dementia in relation to couplehood, with an additional search for any data related to health within the qualitative findings. Findings: Two major reciprocal themes and five subthemes were identified from the 14 study findings. 1. Change and adjustment in the relationship, which included themes around a sense of 'togetherness', change in roles and identity and developing shared coping strategies and 2. Commitment, which was encapsulated by themes on unconditional love and commitment to wedding vows. Health-related findings were limited but included the impact on emotional wellbeing and how other health conditions, rather than dementia, were attributed to a loss in physical sexual intimacy. Conclusion: This review found that couplehood was threatened when dementia symptoms progressed and couples experienced feelings of loss of independence and identity. However, a strong foundation of commitment, love and loyalty to each other developed over the course of the relationship, was the 'glue' that helped couples face dementia together. However, further research is needed to explore couples' experiences of living with both multimorbidity and dementia in relation to couplehood in order to develop holistic, relationship-centred interventions.