Impaired lung function, lung disease, and risk of incident dementia

Pamela L. Lutsey, Nemin Chen, Maria C. Mirabelli, Kamakshi Lakshminarayan, David S Knopman, Keith A. Vossel, Rebecca F. Gottesman, Thomas H. Mosley, Alvaro Alonso

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Rationale: Growing evidence suggests that compromised lung health may be linked to dementia and worsening cognitive ability. Objectives: To test the hypothesis that impaired lung function or lung disease in midlife is associated with greater risk of incident dementia and mild cognitive impairment (MCI) later in life. Methods: A total of 14,184 Atherosclerosis Risk in Communities study participants who underwent spirometry and were asked about lung health (1987-1989) were followed. Dementia and MCI were defined by hospitalization diagnosis codes (1987-2013) in the whole cohort and with adjudication among 42% who attended a comprehensive neurocognitive examination (2011-2013). Measurements and Main Results: In analysis using adjudicated outcomes, odds of dementia or MCI were higher among participants with restrictive (multivariable-adjusted odds ratio, 1.58; 95% confidence interval, 1.14-2.19) and obstructive lung disease (multivariable-adjusted odds ratio, 1.33; 95% confidence interval, 1.07-1.64), compared with those without disease or respiratory symptoms. Associations were similar in analyses restricted to nonsmokers, and present for both Alzheimer's disease-related dementia and cerebrovascular etiologies. Low FEV1% predicted and FVC% predicted were also associated with increased dementia risk. Conclusions: Midlife lung disease and reduced lung function were associated with modestly increased odds of dementia and MCI later in life. Magnitudes of association were more pronounced for restrictive impairment than for obstructive lung disease. These associations were present in smokers and nonsmokers. If the observed associations are causal, policy and public health efforts to reduce smoking and improve air quality may have the added benefit of preventing the development of dementia and MCI.

Original languageEnglish (US)
Pages (from-to)1385-1396
Number of pages12
JournalAmerican journal of respiratory and critical care medicine
Volume199
Issue number11
DOIs
StatePublished - Jan 1 2019

Fingerprint

Lung Diseases
Dementia
Lung
Obstructive Lung Diseases
Odds Ratio
Confidence Intervals
Aptitude
Spirometry
Health
Atherosclerosis
Alzheimer Disease
Hospitalization
Public Health
Smoking
Air
Cognitive Dysfunction

Keywords

  • Alzheimer's disease dementia
  • Chronic obstructive pulmonary disease
  • Dementia
  • Restrictive impairment

ASJC Scopus subject areas

  • Pulmonary and Respiratory Medicine
  • Critical Care and Intensive Care Medicine

Cite this

Lutsey, P. L., Chen, N., Mirabelli, M. C., Lakshminarayan, K., Knopman, D. S., Vossel, K. A., ... Alonso, A. (2019). Impaired lung function, lung disease, and risk of incident dementia. American journal of respiratory and critical care medicine, 199(11), 1385-1396. https://doi.org/10.1164/rccm.201807-1220OC

Impaired lung function, lung disease, and risk of incident dementia. / Lutsey, Pamela L.; Chen, Nemin; Mirabelli, Maria C.; Lakshminarayan, Kamakshi; Knopman, David S; Vossel, Keith A.; Gottesman, Rebecca F.; Mosley, Thomas H.; Alonso, Alvaro.

In: American journal of respiratory and critical care medicine, Vol. 199, No. 11, 01.01.2019, p. 1385-1396.

Research output: Contribution to journalArticle

Lutsey, PL, Chen, N, Mirabelli, MC, Lakshminarayan, K, Knopman, DS, Vossel, KA, Gottesman, RF, Mosley, TH & Alonso, A 2019, 'Impaired lung function, lung disease, and risk of incident dementia', American journal of respiratory and critical care medicine, vol. 199, no. 11, pp. 1385-1396. https://doi.org/10.1164/rccm.201807-1220OC
Lutsey, Pamela L. ; Chen, Nemin ; Mirabelli, Maria C. ; Lakshminarayan, Kamakshi ; Knopman, David S ; Vossel, Keith A. ; Gottesman, Rebecca F. ; Mosley, Thomas H. ; Alonso, Alvaro. / Impaired lung function, lung disease, and risk of incident dementia. In: American journal of respiratory and critical care medicine. 2019 ; Vol. 199, No. 11. pp. 1385-1396.
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abstract = "Rationale: Growing evidence suggests that compromised lung health may be linked to dementia and worsening cognitive ability. Objectives: To test the hypothesis that impaired lung function or lung disease in midlife is associated with greater risk of incident dementia and mild cognitive impairment (MCI) later in life. Methods: A total of 14,184 Atherosclerosis Risk in Communities study participants who underwent spirometry and were asked about lung health (1987-1989) were followed. Dementia and MCI were defined by hospitalization diagnosis codes (1987-2013) in the whole cohort and with adjudication among 42{\%} who attended a comprehensive neurocognitive examination (2011-2013). Measurements and Main Results: In analysis using adjudicated outcomes, odds of dementia or MCI were higher among participants with restrictive (multivariable-adjusted odds ratio, 1.58; 95{\%} confidence interval, 1.14-2.19) and obstructive lung disease (multivariable-adjusted odds ratio, 1.33; 95{\%} confidence interval, 1.07-1.64), compared with those without disease or respiratory symptoms. Associations were similar in analyses restricted to nonsmokers, and present for both Alzheimer's disease-related dementia and cerebrovascular etiologies. Low FEV1{\%} predicted and FVC{\%} predicted were also associated with increased dementia risk. Conclusions: Midlife lung disease and reduced lung function were associated with modestly increased odds of dementia and MCI later in life. Magnitudes of association were more pronounced for restrictive impairment than for obstructive lung disease. These associations were present in smokers and nonsmokers. If the observed associations are causal, policy and public health efforts to reduce smoking and improve air quality may have the added benefit of preventing the development of dementia and MCI.",
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KW - Restrictive impairment

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