Table 1.

Polysomnographic metrics associated with outcomes of obstructive sleep apnoea

Author (year)	Metric	Source	Outcome
Azarbarzin 2019,45 Trzepizur 2022,21 Blanchard 2021,48 Jackson 202147	Hypoxic burden	Oximetry signal	Cardiovascular and cerebrovascular disease, mortality, stroke, kidney disease
Azarbarzin 202152	ΔHR	Pulse (photoplethysmography)	Cardiovascular and cerebrovascular disease, mortality
Younes 2015,54 Kim 202155	Odds ratio product	EEG	Hypertension
Lechat 202158	Delta wave activity	EEG	Mortality
Goh 201859	Respiratory events load	Airflow	Epworth sleepiness scale

EEG=electroencephalography; ΔHR=heart rate response to respiratory events.