The Rise of IGFBP4 in People with Obstructive Sleep Apnea and Multilevel Sleep Surgery Recovers Its Basal Levels

Table 2

Pearson correlation between IGFBP4 and various variables in all study groups.

Variable	Non-OSA		OSA		All populations
		value		value		value
Age (in years)	-0.208	0.330	0.106	0.552	-.052	.700
Weight (kg)	-0.114	0.594	0.376	0.029	.209	.116
Height (cm)	0.080	0.710	0.308	0.076	.200	.133
BMI (kg/m^2)	-0.196	0.359	0.291	0.094	.142	.288
Pulse	0.024	0.913	0.117	0.522	.144	.288
SBP (mmHg)	0.014	0.949	0.195	0.285	.109	.423
DBP (mmHg)	-0.054	0.803	0.183	0.315	.066	.629
ESS	0.142	0.696	-0.092	0.727	.145	.472
AHI (events/h)	-0.296	0.170	0.575	0.0001	.522	.0001
AI (events/h)	0.027	0.903	0.703	0.0001	.649	.0001
HI (events/h)	-0.316	0.142	0.399	0.054	.458	.001
T. Chol (mmol/L)	-0.085	0.693	0.142	0.424	.089	.505
HDL (mmol/L)	0.024	0.911	-0.378	0.028	-.242	.067
LDL (mmol/L)	-0.101	0.638	0.152	0.398	.100	.459
TG (mmol/L)	-0.015	0.943	0.220	0.211	.185	.163
GLU (mmol/L)	-0.265	0.211	0.242	0.168	.047	.727
HbA1c (%)	-0.264	0.212	0.501	0.003	.169	.204
WBC (10^9/L)	0.047	0.827	0.380	0.026	.310	.018
C-pep (pmol/L)	0.022	0.918	0.224	0.203	.241	.069
Insulin (U/L)	0.037	0.864	0.144	0.416	.182	.172
IGFBP1 (ng/ml)	0.040	0.763	0.060	0.736	.040	.763
IGFBP2 (ng/ml)	0.168	0.335	0.171	0.374	.168	.335
IGFBP3 (ng/ml)	-0.043	0.751	-0.116	0.514	-.043	.751
IGFBP7 (ng/ml)	0.037	0.832	0.127	0.512	.037	.832
O2 saturation	-0.089	0.616	-0.423	0.033	-.211	0.083

Pearson coefficient (); ; , indicating high statistical difference.