Screening for Sleep Apnoea in Mild Cognitive Impairment: The Utility of the Multivariable Apnoea Prediction Index

Table 4

ROC curve analysis demonstrating the area under the curve (AUC) values according to various apnoea-hypopnoea index (AHI) scores for the whole sample (𝑛=48), control (𝑛=25), and MCI (𝑛=24) samples.

AHI	Sample	AUC (95% CI)
AHI ≥ 5	Whole	0.567 (0.323, 0.837)
	Control	0.699 (0.349, 0.968)
	MCI	0.576 (0.099, 0.816)
AHI ≥ 15	Whole	0.580 (0.161, 0.500)
	Control	0.671 (0.173, 0.643)
	MCI	0.504 (0.351, 0.872)
AHI ≥ 30	Whole	0.502 (0.084, 0.334)
	Control	0.761 (0.306, 0.732)
	MCI	0.650 (0.457, 0.881)

ROC: receiver operating characteristic; AHI: apnoea-hypopnoea index; AUC: area under the curve; MCI: mild cognitive impairment.