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Assessment of Age-related Changes in Cognitive Functions Using EmoCogMeter, a Novel Tablet-computer Based Approach
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Individual differences in cognitive ability at age 20 predict pulmonary function 35 years later.

Terrie Vasilopoulos1, William S Kremen2, Michael D Grant3

  • 1Department of Anesthesiology, College of Medicine, University of Florida, Gainesville, Florida, USA.

Journal of Epidemiology and Community Health
|October 3, 2014
PubMed
Summary

Early adult cognitive ability predicts mid-life pulmonary function, including lung volume and airflow, 35 years later. This suggests cognitive deficits may precede impaired lung aging.

Keywords:
COGNITIONEPIDEMIOLOGYLONGITUDINAL STUDIESPHYSICAL FUNCTION

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Area of Science:

  • Pulmonary Medicine
  • Cognitive Neuroscience
  • Gerontology

Background:

  • Poor pulmonary function is linked to mortality, age-related diseases, and cognitive performance.
  • Longitudinal studies suggest early cognitive ability influences later pulmonary function.
  • Previous research often focused on a single pulmonary function measure, like FEV1.

Purpose of the Study:

  • To investigate if early adult cognitive ability predicts multiple indices of mid-life pulmonary function.
  • To examine the long-term relationship between cognitive function and lung health.

Main Methods:

  • Utilized mixed modeling to analyze data from the Vietnam Era Twin Study of Aging (N=1019 men).
  • Assessed young adult general cognitive ability using the Armed Forces Qualification Test (AFQT) at age 20.
  • Measured mid-life pulmonary function at age 55 using five indices: FVC%p, FEV1%p, FEFmax%p, MVV%p, and FEV1/FVC ratio.

Main Results:

  • Early adult cognitive ability (AFQT) significantly predicted mid-life forced vital capacity (FVC%p), FEV1%p, maximum forced expiratory flow (FEFmax%p), and maximal voluntary ventilation (MVV%p) (p<0.05).
  • No significant association was found between early cognitive ability and the FEV1/FVC ratio, an index of lung obstruction (p=0.34).
  • Associations remained significant after adjusting for smoking, pulmonary disease, occupation, income, and education.

Conclusions:

  • Early adult cognitive ability is a significant predictor of various aspects of pulmonary function in mid-life, extending over 35 years.
  • Cognitive deficits associated with impaired lung function may be pre-existing.
  • Highlights that early life factors may differentially impact distinct measures of later-life pulmonary health.