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The influence of diversity on the measurement of functional impairment: An international validation of the Amsterdam IADL Questionnaire in eight countries
INTRODUCTION: To understand the potential influence of diversity on the measurement of functional impairment in dementia, we aimed to investigate possible bias caused by age, gender, education, and cultural differences. METHODS: A total of 3571 individuals (67.1 ± 9.5 years old, 44.7% female) from T...
| Autores principales: | , , , , , , , , , , , , , , , , , , , , |
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| Formato: | Online Artículo Texto |
| Lenguaje: | English |
| Publicado: |
John Wiley and Sons Inc.
2020
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| Materias: | |
| Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7219786/ https://www.ncbi.nlm.nih.gov/pubmed/32420446 http://dx.doi.org/10.1002/dad2.12021 |
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| author | Dubbelman, Mark A. Verrijp, Merike Facal, David Sánchez‐Benavides, Gonzalo Brown, Laura J.E. van der Flier, Wiesje M. Jokinen, Hanna Lee, Athene Leroi, Iracema Lojo‐Seoane, Cristina Milošević, Vuk Molinuevo, José Luís Pereiro Rozas, Arturo X. Ritchie, Craig Salloway, Stephen Stringer, Gemma Zygouris, Stelios Dubois, Bruno Epelbaum, Stéphane Scheltens, Philip Sikkes, Sietske A.M. |
| author_facet | Dubbelman, Mark A. Verrijp, Merike Facal, David Sánchez‐Benavides, Gonzalo Brown, Laura J.E. van der Flier, Wiesje M. Jokinen, Hanna Lee, Athene Leroi, Iracema Lojo‐Seoane, Cristina Milošević, Vuk Molinuevo, José Luís Pereiro Rozas, Arturo X. Ritchie, Craig Salloway, Stephen Stringer, Gemma Zygouris, Stelios Dubois, Bruno Epelbaum, Stéphane Scheltens, Philip Sikkes, Sietske A.M. |
| author_sort | Dubbelman, Mark A. |
| collection | PubMed |
| description | INTRODUCTION: To understand the potential influence of diversity on the measurement of functional impairment in dementia, we aimed to investigate possible bias caused by age, gender, education, and cultural differences. METHODS: A total of 3571 individuals (67.1 ± 9.5 years old, 44.7% female) from The Netherlands, Spain, France, United States, United Kingdom, Greece, Serbia, and Finland were included. Functional impairment was measured using the Amsterdam Instrumental Activities of Daily Living (IADL) Questionnaire. Item bias was assessed using differential item functioning (DIF) analysis. RESULTS: There were some differences in activity endorsement. A few items showed statistically significant DIF. However, there was no evidence of meaningful item bias: Effect sizes were low (ΔR (2) range 0‐0.03). Impact on total scores was minimal. DISCUSSION: The results imply a limited bias for age, gender, education, and culture in the measurement of functional impairment. This study provides an important step in recognizing the potential influence of diversity on primary outcomes in dementia research. |
| format | Online Article Text |
| id | pubmed-7219786 |
| institution | National Center for Biotechnology Information |
| language | English |
| publishDate | 2020 |
| publisher | John Wiley and Sons Inc. |
| record_format | MEDLINE/PubMed |
| spelling | pubmed-72197862020-05-15 The influence of diversity on the measurement of functional impairment: An international validation of the Amsterdam IADL Questionnaire in eight countries Dubbelman, Mark A. Verrijp, Merike Facal, David Sánchez‐Benavides, Gonzalo Brown, Laura J.E. van der Flier, Wiesje M. Jokinen, Hanna Lee, Athene Leroi, Iracema Lojo‐Seoane, Cristina Milošević, Vuk Molinuevo, José Luís Pereiro Rozas, Arturo X. Ritchie, Craig Salloway, Stephen Stringer, Gemma Zygouris, Stelios Dubois, Bruno Epelbaum, Stéphane Scheltens, Philip Sikkes, Sietske A.M. Alzheimers Dement (Amst) Cognitive & Behavioral Assessment INTRODUCTION: To understand the potential influence of diversity on the measurement of functional impairment in dementia, we aimed to investigate possible bias caused by age, gender, education, and cultural differences. METHODS: A total of 3571 individuals (67.1 ± 9.5 years old, 44.7% female) from The Netherlands, Spain, France, United States, United Kingdom, Greece, Serbia, and Finland were included. Functional impairment was measured using the Amsterdam Instrumental Activities of Daily Living (IADL) Questionnaire. Item bias was assessed using differential item functioning (DIF) analysis. RESULTS: There were some differences in activity endorsement. A few items showed statistically significant DIF. However, there was no evidence of meaningful item bias: Effect sizes were low (ΔR (2) range 0‐0.03). Impact on total scores was minimal. DISCUSSION: The results imply a limited bias for age, gender, education, and culture in the measurement of functional impairment. This study provides an important step in recognizing the potential influence of diversity on primary outcomes in dementia research. John Wiley and Sons Inc. 2020-05-13 /pmc/articles/PMC7219786/ /pubmed/32420446 http://dx.doi.org/10.1002/dad2.12021 Text en © 2020 The Authors. Alzheimer's & Dementia: Diagnosis, Assessment & Disease Monitoring published by Wiley Periodicals, Inc. on behalf of Alzheimer's Association This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made. |
| spellingShingle | Cognitive & Behavioral Assessment Dubbelman, Mark A. Verrijp, Merike Facal, David Sánchez‐Benavides, Gonzalo Brown, Laura J.E. van der Flier, Wiesje M. Jokinen, Hanna Lee, Athene Leroi, Iracema Lojo‐Seoane, Cristina Milošević, Vuk Molinuevo, José Luís Pereiro Rozas, Arturo X. Ritchie, Craig Salloway, Stephen Stringer, Gemma Zygouris, Stelios Dubois, Bruno Epelbaum, Stéphane Scheltens, Philip Sikkes, Sietske A.M. The influence of diversity on the measurement of functional impairment: An international validation of the Amsterdam IADL Questionnaire in eight countries |
| title | The influence of diversity on the measurement of functional impairment: An international validation of the Amsterdam IADL Questionnaire in eight countries |
| title_full | The influence of diversity on the measurement of functional impairment: An international validation of the Amsterdam IADL Questionnaire in eight countries |
| title_fullStr | The influence of diversity on the measurement of functional impairment: An international validation of the Amsterdam IADL Questionnaire in eight countries |
| title_full_unstemmed | The influence of diversity on the measurement of functional impairment: An international validation of the Amsterdam IADL Questionnaire in eight countries |
| title_short | The influence of diversity on the measurement of functional impairment: An international validation of the Amsterdam IADL Questionnaire in eight countries |
| title_sort | influence of diversity on the measurement of functional impairment: an international validation of the amsterdam iadl questionnaire in eight countries |
| topic | Cognitive & Behavioral Assessment |
| url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7219786/ https://www.ncbi.nlm.nih.gov/pubmed/32420446 http://dx.doi.org/10.1002/dad2.12021 |
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