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

Table 3

PM data for PD patients and non-PD controls.

	PD patients ()	Controls ()	Adjusted values
Quality variables
Recording time	470.7 (75.7)	439.9 (84.6)	0.11
Airflow signal quality (%)^♯	91.1 (14.2)	98.3 (5.2)	0.001
Oxygen saturation signal quality (%)^♯	93.4 (16.6)	95.7 (14.6)	0.51
Pulse signal quality (%)^♯	93.9 (16.2)	95.8 (14.6)	0.58
OSA variables
RDI (events/h)	15.0 (15.1)	22.3 (19.5)	—
Supine RDI (events/h)	18.8 (24.4)	24.2 (21.7)	—
Nonsupine RDI (events/h)	9.6 (12.4)	15.6 (17.6)	—
Time in supine (%)	52.6 (30.8)	48.2 (35.3)	—
Mean saturation (%)	93.7 (4.6)	93.6 (2.5)	—
Oxygen desaturation index (events/h)	6.5 (8.1)	12.6 (13.7)	—

Values are mean (SD) unless specified.
^♯(%) Percentage of optimal signal quality as provided by the RemLogic software.
Adjusted value was obtained by performing linear regression, adjusted for age and gender.
PD: Parkinson’s disease.
RDI: respiration disturbance index.