Number of patients | |
COPD | 11 171 |
Other forms of cognitive impairment diagnosed prior to inclusion | 46 |
Controls | 48 689 |
Age years mean | 67.53 |
Cognitive impairment instruments used in more than one study | |
Halstead-Reitan Test Battery | 3 |
Wechsler Adult Intelligence Scale | 3 |
Mental Deterioration Battery | 3 |
Trail Making Test A-D | 7 |
Wechsler Test of Adult Reading | 2 |
Mini Mental State Examination | 14 |
Wechsler Memory Scale-III test battery | 5 |
Grooved pegboard test | 2 |
Seashore Rhythm Test | 3 |
Study design | |
Cohort | 7 |
Case–control | 14 |
Observational | 2 |
Cross-sectional | 2 |
Interventional | 1 |
Review articles (not included in table) | 5 |
Studies reporting COPD and cognitive impairment | |
An association between COPD and cognitive impairment | 20 |
No association | 2 |
Studies with statistically significant differences seen in COPD# | |
Memory | 5 |
Attention | 3 |
Fluency | 4 |
Language | 2 |
Visuospatial | 3 |