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Related Experiment Video

Updated: May 1, 2026

Traditional Trail Making Test Modified into Brand-new Assessment Tools: Digital and Walking Trail Making Test
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Cognitive function as measured by trail making test in patients with COPD.

Soo Kyung Park1, Janet L Larson2

  • 1Korea University, Seoul, Korea sookyung.park7@gmail.com.

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|April 16, 2014
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Summary

Cognitive impairment is common in chronic obstructive pulmonary disease (COPD). Factors like age and education affect cognition, which is linked to health-related quality of life (HRQOL) in COPD patients.

Keywords:
National Emphysema Treatment Trialchronic obstructive pulmonary diseasecognitive functiontrail making test

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Area of Science:

  • Pulmonary Medicine
  • Neuroscience
  • Psychology

Background:

  • Chronic obstructive pulmonary disease (COPD) is associated with cognitive deficits.
  • Limited understanding exists regarding factors influencing cognitive function and its impact on health-related quality of life (HRQOL) in COPD patients.

Purpose of the Study:

  • To investigate factors associated with cognitive function in individuals with COPD.
  • To examine the relationship between cognitive function and HRQOL in COPD patients.

Main Methods:

  • Utilized data from the National Emphysema Treatment Trial.
  • Assessed cognitive function using the Trail Making Test.
  • Employed descriptive and inferential statistics for data analysis.

Main Results:

  • Participants with COPD demonstrated mild impairments in processing speed and executive function.
  • Age, gender, education, and income were significantly correlated with cognitive function.
  • Cognitive function showed a significant association with HRQOL in the COPD cohort.

Conclusions:

  • Cognitive function is impaired in individuals with COPD.
  • Several demographic and socioeconomic factors influence cognitive performance in COPD.
  • Cognitive function is a significant determinant of HRQOL in COPD patients.
  • Screening for cognitive impairment is recommended in COPD management.