Table 2. Correlations of circulating serum irisin with different parameters by gender.

	Women N = 31	P value	Men N = 29	P value
Age, Years	-0.257	0.162	0.163	0.398
BMI, kg/m2	0.129	0.488	0.755	<0.001
Waist circumference, cm	-0.225	0.224	0.623	<0.001
Fat mass, %	0.215	0.245	0.704	<0.001
Fat free mass, %	-0.234	0.205	-0.704	<0.001
Fat/fat free mass ratio	0.215	0.245	0.704	<0.001
Fat mass index, kg/m2	0.239	0,196	0.762	<0.001
Fat-free mass index, kg/m2	-0.100	0.591	0.216	0.261
Systolic blood pressure, mmHg	-0.219	0.236	0.043	0.826
Diastolic blood pressure, mmHg	-0.116	0.534	-0.052	0.790
Heart rate, beat/min	0.035	0.850	0.326	0.084
Creatinine, mg/dl	-0.038	0.847	0.151	0.433
Total cholesterol, mg/dl	-0.077	0.680	-0.175	0.365
HDL cholesterol, mg/dl	0.129	0.490	-0.099	0.608
LDL cholesterol, mg/dl	-0.099	0.598	-0.105	0.587
Triglycerides, mg/dl	-0.273	0.137	0.017	0.932
Glucose, mg/dl	0.286	0.118	0.408	0.028
Glycated Hemoglobin, mmol/mol	0.053	0.779	0.275	0.148
Insulin, μU/ml	0.424	0.017	0.743	<0.001
HOMA Index	0.452	0.011	0.735	<0.001
AGE	-0.052	0.787	0.182	0.344
FINDRISC	0.143	0.441	0.536	0.003
FLI	-0.001	0.995	0.705	<0.001

AGE, advanced glycation end-products; BMI, body mass index; FINDRISC, Finnish diabetes risk score; FLI, fatty liver index; HDL, high density lipoprotein; HOMA, homeostasis model assessment; LDL, low density lipoprotein.