Table 3.

Linear Regression analysis of serum L-carnitine, TMAO levels with metabolic syndrome related indexes^a.

	Men (n = 536)			Women (n = 545)
	R2	β*	P	R2	β*	P
L-CARNITINE (μmol/L)
Weight	0.035	0.026	0.554	0.057	0.216	0.000
BMI	0.075	0.043	0.318	0.089	0.203	0.000
Waist circumference	0.138	0.030	0.459	0.132	0.155	0.001
Hip circumference	0.123	0.040	0.327	0.112	0.195	0.000
Waist/hip ratio	0.055	0.003	0.937	0.061	0.016	0.730
Systolic BP	0.041	0.033	0.446	0.080	0.040	0.388
Diastolic BP	0.107	−0.019	0.645	0.042	0.039	0.405
Serum TG	0.164	0.130	0.001	0.108	0.040	0.406
Serum TC	0.115	0.068	0.104	0.117	0.095	0.035
Serum HDL-c	0.085	−0.005	0.898	0.091	0.029	0.533
Serum LDL-c	0.090	0.017	0.692	0.106	0.064	0.161
Atherogenic index (AI)	0.154	0.021	0.603	0.095	0.032	0.481
Serum glucose	0.189	−0.016	0.684	0.150	0.097	0.028
Serum insulin	0.290	0.096	0.010	0.180	0.140	0.001
HOMA-IR	0.307	0.087	0.018	0.190	0.146	0.001
HOMA-β	0.302	0.071	0.056	0.190	0.137	0.002
QUICKI	0.305	−0.090	0.015	0.192	−0.150	0.001
TMAO (μmol/L)
Weight	0.025	−0.059	0.188	0.020	0.035	0.438
BMI	0.066	−0.068	0.122	0.055	−0.010	0.822
Waist circumference	0.140	−0.052	0.216	0.113	−0.009	0.843
Hip circumference	0.123	−0.032	0.449	0.081	0.000	0.992
Waist/hip ratio	0.058	−0.054	0.216	0.061	−0.022	0.614
Systolic BP	0.043	0.053	0.236	0.080	−0.059	0.183
Diastolic BP	0.107	0.013	0.753	0.041	−0.014	0.763
Serum TG	0.147	−0.013	0.760	0.106	0.038	0.383
Serum TC	0.111	0.019	0.658	0.113	0.069	0.112
Serum HDL-c	0.090	0.077	0.077	0.092	0.050	0.252
Serum LDL-c	0.090	0.014	0.754	0.107	0.067	0.121
Atherogenic index (AI)	0.156	−0.053	0.206	0.093	−0.001	0.973
Serum glucose	0.188	0.002	0.969	0.141	0.022	0.613
Serum insulin	0.282	0.034	0.883	0.168	0.065	0.119
HOMA-IR	0.300	0.032	0.398	0.176	0.063	0.129
HOMA-β	0.298	0.019	0.613	0.177	0.052	0.209
QUICKI	0.298	−0.019	0.610	0.177	−0.062	0.137

^aModels were multiple linear regression with statistical significant associations at p < 0.05. All analyses were controlled for age, total calorie intake, physical activity level, medicine status, alcohol intake, smoking status, and menopausal status. β, Unstandardized Beta;

^β*,standardized coefficient; R2, Adjusted R square.