Life-Space Mobility and Cognitive Decline Among Mexican Americans Aged 75 Years and Older

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10 Citations (Scopus)

Abstract

Objectives: To examine the association between life-space mobility and cognitive decline over a five-year period among older Mexican Americans. Design: Longitudinal study. Setting: Hispanic Established Population for the Epidemiologic Study of the Elderly survey conducted in the southwestern of United States (Texas, Colorado, Arizona, New Mexico, and California). Participants: Four hundred thirty-two Mexican Americans aged 75 and older with normal or high cognitive function at baseline. Measurements: Socio-demographic factors, living arrangement, type of household, social support, financial strain, self-reported medical conditions, Mini-Mental State Examination (MMSE), depressive symptoms, activities of daily living (ADLs), and Short Physical Performance Battery. Life-space assessment (LSA) during the past 4 weeks was assessed during in-home interview. Scores ranged from 0 (daily restriction to the bedroom) to 120 (daily trips outside of their own town without assistance) and categorized as 0 to 20, 21 to 40, 41 to 60, 61 to 80, and 81 to 120. Because of the small sample size in the category of 81 to 120, the two highest categories were combined into a single group. Results: The mean LSA score and MMSE score of participants at baseline was 44.6 (Standard Deviation [SD], 20.7) and 25.7 (SD, 3.2), respectively. Mixed Model analyses showed that participants in the highest life-space category (≥61) experienced slower rates of cognitive decline over time compared to participants in the lowest category (0 to 20) (β = 1.03, Standard Error [SE] = 0.29, P = 0.0004), after adjusting for all covariates. Conclusion: Greater life-space mobility at baseline was predictor of slower rates of cognitive decline over 5 years in older Mexican Americans.

Original languageEnglish (US)
JournalJournal of the American Geriatrics Society
DOIs
StateAccepted/In press - 2017

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Southwestern United States
Activities of Daily Living
Hispanic Americans
Social Support
Sample Size
Cognition
Longitudinal Studies
Epidemiologic Studies
Demography
Cognitive Dysfunction
Interviews
Depression
Population
Surveys and Questionnaires

Keywords

  • Cognition
  • Life-space
  • Mexican Americans
  • Mobility
  • Older adults

ASJC Scopus subject areas

  • Geriatrics and Gerontology

Cite this

@article{4d09d840456d404687ef596c133738f7,
title = "Life-Space Mobility and Cognitive Decline Among Mexican Americans Aged 75 Years and Older",
abstract = "Objectives: To examine the association between life-space mobility and cognitive decline over a five-year period among older Mexican Americans. Design: Longitudinal study. Setting: Hispanic Established Population for the Epidemiologic Study of the Elderly survey conducted in the southwestern of United States (Texas, Colorado, Arizona, New Mexico, and California). Participants: Four hundred thirty-two Mexican Americans aged 75 and older with normal or high cognitive function at baseline. Measurements: Socio-demographic factors, living arrangement, type of household, social support, financial strain, self-reported medical conditions, Mini-Mental State Examination (MMSE), depressive symptoms, activities of daily living (ADLs), and Short Physical Performance Battery. Life-space assessment (LSA) during the past 4 weeks was assessed during in-home interview. Scores ranged from 0 (daily restriction to the bedroom) to 120 (daily trips outside of their own town without assistance) and categorized as 0 to 20, 21 to 40, 41 to 60, 61 to 80, and 81 to 120. Because of the small sample size in the category of 81 to 120, the two highest categories were combined into a single group. Results: The mean LSA score and MMSE score of participants at baseline was 44.6 (Standard Deviation [SD], 20.7) and 25.7 (SD, 3.2), respectively. Mixed Model analyses showed that participants in the highest life-space category (≥61) experienced slower rates of cognitive decline over time compared to participants in the lowest category (0 to 20) (β = 1.03, Standard Error [SE] = 0.29, P = 0.0004), after adjusting for all covariates. Conclusion: Greater life-space mobility at baseline was predictor of slower rates of cognitive decline over 5 years in older Mexican Americans.",
keywords = "Cognition, Life-space, Mexican Americans, Mobility, Older adults",
author = "Seraina Silberschmidt and Amit Kumar and Mukaila Raji and Kyriakos Markides and Kenneth Ottenbacher and {Al Snih al snih}, Soham",
year = "2017",
doi = "10.1111/jgs.14829",
language = "English (US)",
journal = "Journal of the American Geriatrics Society",
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TY - JOUR

T1 - Life-Space Mobility and Cognitive Decline Among Mexican Americans Aged 75 Years and Older

AU - Silberschmidt, Seraina

AU - Kumar, Amit

AU - Raji, Mukaila

AU - Markides, Kyriakos

AU - Ottenbacher, Kenneth

AU - Al Snih al snih, Soham

PY - 2017

Y1 - 2017

N2 - Objectives: To examine the association between life-space mobility and cognitive decline over a five-year period among older Mexican Americans. Design: Longitudinal study. Setting: Hispanic Established Population for the Epidemiologic Study of the Elderly survey conducted in the southwestern of United States (Texas, Colorado, Arizona, New Mexico, and California). Participants: Four hundred thirty-two Mexican Americans aged 75 and older with normal or high cognitive function at baseline. Measurements: Socio-demographic factors, living arrangement, type of household, social support, financial strain, self-reported medical conditions, Mini-Mental State Examination (MMSE), depressive symptoms, activities of daily living (ADLs), and Short Physical Performance Battery. Life-space assessment (LSA) during the past 4 weeks was assessed during in-home interview. Scores ranged from 0 (daily restriction to the bedroom) to 120 (daily trips outside of their own town without assistance) and categorized as 0 to 20, 21 to 40, 41 to 60, 61 to 80, and 81 to 120. Because of the small sample size in the category of 81 to 120, the two highest categories were combined into a single group. Results: The mean LSA score and MMSE score of participants at baseline was 44.6 (Standard Deviation [SD], 20.7) and 25.7 (SD, 3.2), respectively. Mixed Model analyses showed that participants in the highest life-space category (≥61) experienced slower rates of cognitive decline over time compared to participants in the lowest category (0 to 20) (β = 1.03, Standard Error [SE] = 0.29, P = 0.0004), after adjusting for all covariates. Conclusion: Greater life-space mobility at baseline was predictor of slower rates of cognitive decline over 5 years in older Mexican Americans.

AB - Objectives: To examine the association between life-space mobility and cognitive decline over a five-year period among older Mexican Americans. Design: Longitudinal study. Setting: Hispanic Established Population for the Epidemiologic Study of the Elderly survey conducted in the southwestern of United States (Texas, Colorado, Arizona, New Mexico, and California). Participants: Four hundred thirty-two Mexican Americans aged 75 and older with normal or high cognitive function at baseline. Measurements: Socio-demographic factors, living arrangement, type of household, social support, financial strain, self-reported medical conditions, Mini-Mental State Examination (MMSE), depressive symptoms, activities of daily living (ADLs), and Short Physical Performance Battery. Life-space assessment (LSA) during the past 4 weeks was assessed during in-home interview. Scores ranged from 0 (daily restriction to the bedroom) to 120 (daily trips outside of their own town without assistance) and categorized as 0 to 20, 21 to 40, 41 to 60, 61 to 80, and 81 to 120. Because of the small sample size in the category of 81 to 120, the two highest categories were combined into a single group. Results: The mean LSA score and MMSE score of participants at baseline was 44.6 (Standard Deviation [SD], 20.7) and 25.7 (SD, 3.2), respectively. Mixed Model analyses showed that participants in the highest life-space category (≥61) experienced slower rates of cognitive decline over time compared to participants in the lowest category (0 to 20) (β = 1.03, Standard Error [SE] = 0.29, P = 0.0004), after adjusting for all covariates. Conclusion: Greater life-space mobility at baseline was predictor of slower rates of cognitive decline over 5 years in older Mexican Americans.

KW - Cognition

KW - Life-space

KW - Mexican Americans

KW - Mobility

KW - Older adults

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U2 - 10.1111/jgs.14829

DO - 10.1111/jgs.14829

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JO - Journal of the American Geriatrics Society

JF - Journal of the American Geriatrics Society

SN - 0002-8614

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