“…However, existing evidence based on carer reports and self-reports from PwD provided mixed results (Brown et al, 2020;Liu et al, 2021). On the one hand some studies (Boutoleau-Bretonniere et al, 2020;Canevelli et al, 2020;Lara et al, 2020;Rainero et al, 2020;Borelli et al, 2021) found that the pandemic accelerated decline in the cognitive, physical, functional, and mental health of PwD, as well as increased neuropsychiatric symptoms, behavioural problems, and loneliness among PwD (Barguilla et al, 2020;Boutoleau-Bretonniere et al, 2020;Canevelli et al, 2020;Cohen et al, 2020;Lara et al, 2020;Rainero et al, 2020;Vaitheswaran et al, 2020;Altieri and Santangelo, 2021;Azevedo et al, 2021;Borelli et al, 2021;Carlos et al, 2021;Liu et al, 2021;Tam et al, 2021;Tsapanou et al, 2021). On the other hand, some studies found that the pandemic had minimal negative impact or no impact on these outcomes (Canevelli et al, 2020;Cohen et al, 2020;Lara et al, 2020;Thyrian et al, 2020).…”