“…Despite this evidence, there has been limited research on the implications of health inequalities for crucial indicators of older people's health, such as geriatric syndromes, which, due to their complexity and interrelationships, substantially impact how we age. For instance, a recent study examined the magnitude of oral health inequalities among older people using longitudinal data from Japan and Singapore, reporting that oral health inequalities increased over time in both countries, but mainly in Singapore ( Kiuchi et al, 2023 ). Nevertheless, studies on health inequalities with older adults have been primarily cross-sectional, and the results have shown that frailty, depression, functional limitations, chronic conditions, falls, low muscle mass, and cognitive impairment are concentrated in older people with a disadvantaged socioeconomic level ( Azizabadi et al, 2022 ; Katikireddi et al, 2020 ; Makaroun et al, 2017 ; Salinas-Rodríguez et al, 2019 ; Saravanakumar et al, 2022 ; Shang & Wei, 2023 ; Sharma & Pradhan, 2023 ; Tsimbos, 2010 ).…”