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Cognitive functioning and survival among patients with chronic obstructive pulmonary disease
The International Journal of Neuroscience
|July 1, 1985
Summary
Neuropsychological impairment in chronic obstructive pulmonary disease (COPD) patients is linked to survival. Higher scores on specific cognitive tests predict a better three-year survival rate for individuals with COPD.
Area of Science:
- Neurology
- Pulmonology
- Psychology
Background:
- Previous research identified neuropsychological impairment in clinically stable chronic obstructive pulmonary disease (COPD) patients.
- COPD-related cognitive deficits were previously associated with reduced oxygen availability to body tissues.
Purpose of the Study:
- To investigate the relationship between neuropsychological test scores and three-year survival status in patients with COPD.
- To determine if cognitive function can predict survival probability in COPD patients.
Main Methods:
- Retrospective analysis of 62 clinically stable COPD patients previously assessed for neuropsychological impairment.
- Follow-up over three years to collect survival status data.
- Statistical analysis, including individual analyses of variance, to correlate neuropsychological test scores with survival.
Main Results:
- Patients who survived the three-year period scored significantly higher on neuropsychological tests compared to those who died (p < 0.01).
- The Benton Visual Motor Retention Test and the digit symbol subtest of the Wechsler Adult Intelligence Scale were primary contributors to this significant relationship.
- These specific tests were previously found to correlate with oxygen levels and pulmonary function in COPD patients.
Conclusions:
- Certain neuropsychological tests may serve as indicators of COPD progression.
- Cognitive test performance can potentially reflect three-year survival probability in COPD patients.
- Neuropsychological assessment may offer valuable prognostic information in the management of COPD.