1. Geo‐Cultural Influence on Quality of Life and Activities of Daily Living in Older Adults with Alzheimer's disease.
- Author
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Appleman, Erica R., Machizawa, Sayaka, Stenclik, Jessica, Kamat, Rujvi, and Iacob, Andrei
- Abstract
Background: In addition to measures of cognition, global Alzheimer's disease (AD) clinical trials commonly include measures to assess functional status (activities of daily living; ADLs) and quality of life (QoL) reported by participants and study partners. Most common assessments were validated with North American, White, English‐speaking populations and research suggests that these are not free from cultural and linguistic influence. ADLs and QoL may exhibit regional differences due to socioeconomic and cultural factors. It is important to understand how geo‐cultural factors influence these measures, which are often used as trial efficacy endpoints. In this study, we examined the impact of geo‐cultural region on ADCS‐MCI‐ADL and QoL‐AD when considering baseline cognitive status. Method: This study included electronic ADCS‐MCI‐ADL, QoL‐AD, and ADAS‐Cog data from two multi‐national AD clinical trials of participants with prodromal to mild AD. Data were collected from three geo‐cultural regions: Asia (n = 688); Western Europe (WE; n = 589); and North America (NA; n = 1925). Participants were stratified into five cohorts based on ADAS‐Cog13 scores. Result: QoL‐AD Study Partner and AD Participant scores varied significantly across geo‐cultural regions (Kruskal‐Wallis test; p<0.0001). Both study partner‐reported and participant reported QoL‐AD scores in Asia were lower than scores in NA and WE for all ADAS‐Cog13 cohorts (Dunn's test; p<0.0001). QoL‐AD AD Participant scores in NA and WE did not differ. For participants with lower cognitive performance (ADAS‐Cog > 40th percentile), study partner‐reported QoL‐AD scores in NA were significantly higher than those in WE (Dunn's test; p<0.05), but there was not significant difference on the participant‐reported QoL‐AD scores between these regions. ADCS‐MCI‐ADL scores were not significantly different across groups. Conclusion: Our study found that QoL‐AD, but not ADCS‐MCI‐ADL scores differed significantly across geo‐cultural regions when considering baseline cognitive performance. Both participant and study‐partner reported QoL was lower in Asia than in WE and NA. Cross‐regional differences in QoL may also be moderated by baseline cognitive performance. Different social norms and aging expectation, healthcare resources, and trial participation may have contributed to the regional variance observed. Future studies should examine if specific constructs are more contextually dependent on the local culture. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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