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

Table 2

Correlation coefficients between the MAPI and clinical and polysomnographic data for controls (𝑛=37) and patients with mild cognitive impairment (MCI) (𝑛=37).

	MAPI Controls	MAPI MCI
Age	𝟎.𝟒𝟓𝟖^∗∗	−0.165
Body mass index	𝟎.𝟒𝟗𝟏^∗∗	𝟎.𝟒𝟗𝟗^∗∗
MMSE score	−0.086	−0.084
CIRS, total score	0.325	0.287
Apnoea-hypopnoea index (nonparametric test)	𝟎.𝟒𝟕𝟒^∗ (𝑛=25)	−0.141 (𝑛=24)
Average oxygen desaturation (non-parametric test)	0.279	−0.144
Oxygen desaturation index (non-parametric test)	𝟎.𝟒𝟏𝟖^∗∗	−0.077
Lowest oxygen desaturations	−0.308	−0.180

^∗𝑃<0.05, ^∗∗𝑃<0.01.
MAPI: multivariable apnoea prediction index; CIRS: cumulative illness rating scale; MMSE: mini-mental state examination.