Prevalence of Obstructive Sleep Apnea (OSA) and the Association With Cognitive Impairment

Prevalence of Obstructive Sleep Apnea (OSA) and the Association With Cognitive Impairment

The study is aimed to carry out an epidemiology study investigating the prevalence of obstructive sleep apnea (OSA) and the association with cognitive impairment.

Inclusion Criteria:

• Have stability of at least 4 weeks on permitted medications (i.e. medications known not to affect sleep architecture or circadian rhythms).

Exclusion Criteria:

• Suspected dementia or a score of <24 on the mini-mental state examination
• A diagnosis of neurological disorders (e.g. Parkinson's Disease, Epilepsy, Multiple Sclerosis)
• Psychiatric disorders including current major depression; bipolar disorder; schizophrenia
• Other known clinically significant sleep disorders (e.g. narcolepsy)
• Been currently receiving CPAP or bi-level pressure for OSA