Mean Platelet Volume in Patients with Obstructive Sleep Apnea and Its Relationship with Simpler Heart Rate Derivatives

Table 2

Correlations between HRPI, MPV, and other variables in the OSA and in the control group.

Variables	OSA group				Controls
	HRPI		MPV		HRPI		MPV
	Age	0.006	0.964^a	0.001	0.994^a	0.101	0.595^a	−0.060	0.752^a
BMI	0.051	0.718^b	−0.160	0.258^b	0.263	0.160^b	−0.095	0.619^b
CRP	0.112	0.449^b	0.024	0.871^b	0.139	0.482^b	−0.281	0.147^b
Fibrinogen	0.018	0.902^b	0.090	0.546^a	0.213	0.341^a	−0.278	0.210^a
Hemoglobin	0.061	0.669^b	0.054	0.704^b	−0.263	0.161^b	−0.264	0.235^b
RDW	−0.207	0.142^b	−0.071	0.615^b	−0.073	0.700^a	−0.057	0.766^b
WBC	−0.058	0.684^b	0.144	0.310^a	−0.296	0.112^b	−0.093	0.626^a
Neutrophil	−0.160	0.256^b	0.069	0.625^b	−0.300	0.108^b	−0.090	0.638^b
Lymphocyte	0.083	0.561^b	−0.053	0.709^b	−0.239	0.203^b	0.062	0.582^b
ratio	−0192	0.173^b	0.080	0.573^b	−0.005	0.980^b	−0.049	0.798^b
Platelet	−0.174	0.218^b	−0.396	0.004^b	0.133	0.485^b	−0.159	0.403^a
AHI	0.199	0.157^b	0.064	0.654^b	0.173	0.361^b	0.135	0.478^b
SaO2 < 90%, PRTS	0.254	0.01^a	0.411	0.001^a	0.158	0.117^a	0.175	0.051^a
Min. HR	−0.529	<0.001^b	−0.147	0.297^b	−0.766	<0.001^b	−0.367	0.046^b
Max. HR	0.774	<0.001^b	0.254	0.069^b	0.918	<0.001^b	0.122	0.521^b
Min. HR–Max. HR	0.908	<0.001^a	0.311	0.025^a	0.896	<0.001^a	0.215	0.253^a
Mean HR	−0.388	0.005^a	−0.151	0.285^a	−0.552	0.002^a	−0.089	0.638^a

Abbreviations: AHI: apnea hypopnea index, : neutrophil/lymphocyte, RDW: red blood cell distribution width, HR: heart rate, PRTS: percentage of recording time spent; SaO₂: arterial oxygen saturation. ^aPearson correlation test. ^bSpearman correlation test.