Lifestyle behavior pattern is associated with different levels of risk for incident dementia and Alzheimer's disease: The Cache County study

Maria C. Norton, Jeffrey Dew, Heeyoung Smith, Elizabeth Fauth, Kathleen W. Piercy, John C.S. Breitner, Joann Tschanz, Heidi Wengreen, Kathleen Welsh-Bohmer

Research output: Contribution to journalArticle

Abstract

Objectives To identify distinct behavioral patterns of diet, exercise, social interaction, church attendance, alcohol consumption, and smoking and to examine their association with subsequent dementia risk. Design Longitudinal, population-based dementia study. Setting Rural county in northern Utah, at-home evaluations. Participants Two thousand four hundred ninety-one participants without dementia (51% male, average age 73.0 ± 5,7; average education 13.7 ± 4.1 years) initially reported no problems in activities of daily living and no stroke or head injury within the past 5 years. Measurements Six dichotomized lifestyle behaviors were examined (diet: high ≥ median on the Dietary Approaches to Stop Hypertension scale; exercise: ≥5 h/wk of light activity and at least occasional moderate to vigorous activity; church attendance: attending church services at least weekly; social Interaction: spending time with family and friends at least twice weekly; alcohol: currently drinking alcoholic beverages ≥ 2 times/wk; nonsmoker: no current use or fewer than 100 cigarettes ever). Latent class analysis (LCA) was used to identify patterns among these behaviors. Proportional hazards regression modeled time to dementia onset as a function of behavioral class, age, sex, education, and apolipoprotein E status. Follow-up averaged 6.3 ± 5.3 years, during which 278 cases of incident dementia (200 Alzheimer's disease (AD)) were diagnosed. Results LCA identified four distinct lifestyle classes. Unhealthy-religious (UH-R; 11.5%), unhealthy-nonreligious (UH-NR; 10.5%), healthy-moderately religious (H-MR; 38.5%), and healthy-very religious (H-VR; 39.5%). UH-NR (hazard ratio (HR) = 0.54, P =.028), H-MR (HR = 0.56, P =.003), and H-VR (HR = 0.58, P =.005) had significantly lower dementia risk than UH-R. Results were comparable for AD, except that UH-NR was less definitive. Conclusion Functionally independent older adults appear to cluster into subpopulations with distinct patterns of lifestyle behaviors with different levels of risk for subsequent dementia and AD.

Original languageEnglish (US)
Pages (from-to)405-412
Number of pages8
JournalJournal of the American Geriatrics Society
Volume60
Issue number3
DOIs
StatePublished - Mar 2012
Externally publishedYes

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Dementia
Life Style
Alzheimer Disease
Interpersonal Relations
Alcohol Drinking
Exercise
Diet
Alcoholic Beverages
Sex Education
Apolipoproteins E
Activities of Daily Living
Craniocerebral Trauma
Tobacco Products
Smoking
Stroke
Hypertension
Education
Light
Population

Keywords

  • dementia
  • health-related behaviors
  • lifestyle

ASJC Scopus subject areas

  • Geriatrics and Gerontology

Cite this

Lifestyle behavior pattern is associated with different levels of risk for incident dementia and Alzheimer's disease : The Cache County study. / Norton, Maria C.; Dew, Jeffrey; Smith, Heeyoung; Fauth, Elizabeth; Piercy, Kathleen W.; Breitner, John C.S.; Tschanz, Joann; Wengreen, Heidi; Welsh-Bohmer, Kathleen.

In: Journal of the American Geriatrics Society, Vol. 60, No. 3, 03.2012, p. 405-412.

Research output: Contribution to journalArticle

Norton, Maria C. ; Dew, Jeffrey ; Smith, Heeyoung ; Fauth, Elizabeth ; Piercy, Kathleen W. ; Breitner, John C.S. ; Tschanz, Joann ; Wengreen, Heidi ; Welsh-Bohmer, Kathleen. / Lifestyle behavior pattern is associated with different levels of risk for incident dementia and Alzheimer's disease : The Cache County study. In: Journal of the American Geriatrics Society. 2012 ; Vol. 60, No. 3. pp. 405-412.
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abstract = "Objectives To identify distinct behavioral patterns of diet, exercise, social interaction, church attendance, alcohol consumption, and smoking and to examine their association with subsequent dementia risk. Design Longitudinal, population-based dementia study. Setting Rural county in northern Utah, at-home evaluations. Participants Two thousand four hundred ninety-one participants without dementia (51{\%} male, average age 73.0 ± 5,7; average education 13.7 ± 4.1 years) initially reported no problems in activities of daily living and no stroke or head injury within the past 5 years. Measurements Six dichotomized lifestyle behaviors were examined (diet: high ≥ median on the Dietary Approaches to Stop Hypertension scale; exercise: ≥5 h/wk of light activity and at least occasional moderate to vigorous activity; church attendance: attending church services at least weekly; social Interaction: spending time with family and friends at least twice weekly; alcohol: currently drinking alcoholic beverages ≥ 2 times/wk; nonsmoker: no current use or fewer than 100 cigarettes ever). Latent class analysis (LCA) was used to identify patterns among these behaviors. Proportional hazards regression modeled time to dementia onset as a function of behavioral class, age, sex, education, and apolipoprotein E status. Follow-up averaged 6.3 ± 5.3 years, during which 278 cases of incident dementia (200 Alzheimer's disease (AD)) were diagnosed. Results LCA identified four distinct lifestyle classes. Unhealthy-religious (UH-R; 11.5{\%}), unhealthy-nonreligious (UH-NR; 10.5{\%}), healthy-moderately religious (H-MR; 38.5{\%}), and healthy-very religious (H-VR; 39.5{\%}). UH-NR (hazard ratio (HR) = 0.54, P =.028), H-MR (HR = 0.56, P =.003), and H-VR (HR = 0.58, P =.005) had significantly lower dementia risk than UH-R. Results were comparable for AD, except that UH-NR was less definitive. Conclusion Functionally independent older adults appear to cluster into subpopulations with distinct patterns of lifestyle behaviors with different levels of risk for subsequent dementia and AD.",
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AU - Norton, Maria C.

AU - Dew, Jeffrey

AU - Smith, Heeyoung

AU - Fauth, Elizabeth

AU - Piercy, Kathleen W.

AU - Breitner, John C.S.

AU - Tschanz, Joann

AU - Wengreen, Heidi

AU - Welsh-Bohmer, Kathleen

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N2 - Objectives To identify distinct behavioral patterns of diet, exercise, social interaction, church attendance, alcohol consumption, and smoking and to examine their association with subsequent dementia risk. Design Longitudinal, population-based dementia study. Setting Rural county in northern Utah, at-home evaluations. Participants Two thousand four hundred ninety-one participants without dementia (51% male, average age 73.0 ± 5,7; average education 13.7 ± 4.1 years) initially reported no problems in activities of daily living and no stroke or head injury within the past 5 years. Measurements Six dichotomized lifestyle behaviors were examined (diet: high ≥ median on the Dietary Approaches to Stop Hypertension scale; exercise: ≥5 h/wk of light activity and at least occasional moderate to vigorous activity; church attendance: attending church services at least weekly; social Interaction: spending time with family and friends at least twice weekly; alcohol: currently drinking alcoholic beverages ≥ 2 times/wk; nonsmoker: no current use or fewer than 100 cigarettes ever). Latent class analysis (LCA) was used to identify patterns among these behaviors. Proportional hazards regression modeled time to dementia onset as a function of behavioral class, age, sex, education, and apolipoprotein E status. Follow-up averaged 6.3 ± 5.3 years, during which 278 cases of incident dementia (200 Alzheimer's disease (AD)) were diagnosed. Results LCA identified four distinct lifestyle classes. Unhealthy-religious (UH-R; 11.5%), unhealthy-nonreligious (UH-NR; 10.5%), healthy-moderately religious (H-MR; 38.5%), and healthy-very religious (H-VR; 39.5%). UH-NR (hazard ratio (HR) = 0.54, P =.028), H-MR (HR = 0.56, P =.003), and H-VR (HR = 0.58, P =.005) had significantly lower dementia risk than UH-R. Results were comparable for AD, except that UH-NR was less definitive. Conclusion Functionally independent older adults appear to cluster into subpopulations with distinct patterns of lifestyle behaviors with different levels of risk for subsequent dementia and AD.

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