Diagnosis of Obstructive Sleep Apnea in Parkinson’s Disease Patients: Is Unattended Portable Monitoring a Suitable Tool?

Table 6

Assessment of patient characteristics in relation to discrepancies between RDI and AHI.

	RDI/AHI ratio		value	95% CI
Age	<Median ()	>Median ()
	0.78 (0.84)	0.71 (0.54)	0.82	−0.49; 0.61
MOCA	<26 ()	≥26 ()
	0.70 (0.82)	0.77 (0.61)	0.81	−0.52; 0.66
Motor UPDRS	<Median ()	>Median ()
	1.02 (0.85)	0.46 (0.32)	0.03	0.05; 1.08
Dysautonomia	Yes ()	No ()
	0.57 (0.31)	0.87 (0.87)	0.22	−0.20; 0.79
Neg. chronotropic med.	Yes ()	No ()
	0.53 (0.28)	0.79 (0.75)	0.21	−0.17; 0.68
Either dysautonomia or; neg. chronotropic med.	Yes ()	No ()
	0.58 (0.30)	0.89 (0.90)	0.24	−0.22; 0.82

 Groups of age were separated according to the median age (63.5 years). Patients with younger age are <63.5 years and patients with older age are ≥63.5 years.
MOCA: Montreal Cognitive Assessment.
UPDRS: Unified Parkinson’s Disease Rating Scale.
The dysautonomia score is based on a question from the first part of the UPDRS (see Section 2), regarding light-headedness on standing. Patients with reported dysautonomia have slight to severe symptoms, whereas patients with no reported dysautonomia have no symptoms of light-headedness.
Neg. chronotropic med.: Negative chronotropic medication (i.e., calcium channel blockers and/or beta-blockers).
RDI: respiratory disturbance index (measured with PM).
AHI: apnea hypopnea index (measured with PSG).
95% CI: 95% confidence intervals.