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The proportion of patients with cognitive impairment
| Groups | MoCA (+), % | MMSE (+), % |
|---|---|---|
| Regular-user LTOTD-COPD group | 36.8% | 26.3% |
| Nonuser LTOTD-COPD group | 70.8% | 50% |
Note: “+” indicates cognitive assessment test result is positive for cognitive impairment.
Abbreviations: LTOTD, long-term oxygen therapy-dependent; MMSE, Mini-Mental State Examination; MoCA, Montreal Cognitive Assessment.
