Table 2 Identified narrative categories with respective studies

Psychosocial determinants

    Inadequate discharge planning

PLWD living at home alone

Knox et al. (2021) [46], Callahan et al. (2012) [50], Tropea et al. (2017) [52]

Insufficient post-discharge care resources

Knox et al. (2021) [46], Callahan et al. (2012) [50], Tropea et al. (2017) [52], Cummings et al. (1999) [45], Graversen et al. (2021) [16]

Complex care

Cummings et al. (1999) [45]

    Interdisciplinary collaboration

Poor communication:

- Poor information sharing when transitioning healthcare facilities.

- Short discharge timeframes

Gilmore-Bykovskyi et al. (2017) [55]

Good communication:

- Different healthcare professionals using their expertise to achieve the same goal of reducing hospital readmissions.

- Primary care continuity between primary care professionals and PLWD and their carers.

Gustafsson et al. (2017) [56], Godard-Sebillotte et al. (2021) [17]

    Ethnic differences in dementia

Socioeconomic disadvantages among PLWD of ethnic minorities

Gilmore-Bykovskyi et al. (2023) [57]

Psychosocial and physical connection

    Behavioural and psychological symptoms

Potential overuse to manage behavioural and psychological symptoms (BPSD) and delirium

Daiello et al. (2014) [53] Tannenbaum et al. [54]

Hospitalised PLWD with behavioural symptoms

Physical determinants

    Functional ability

Individual ability to mobilise and perform self-care tasks to reduce recurrent admissions

Knox et al. (2020) [47]

    Long-term conditions

Common long-term conditions

Lin et al. (2017) [51], Sakata (2018) [18], Van de Vorst (2019) [19]

Accumulating long-term conditions

Rudolph et al. (2010) [49]

Common hospital admission aetiologies

Chang et al. (2015) [44]