Table 1.

The demographic data, clinical and biochemical parameters of subjects.

	Male	Female	P
n	24407	24889
Age (year)	41.5 ± 8.3	42.8 ± 8.7	<.001
Body mass index (kg/m2)	24.1 ± 2.9	23.1 ± 3.2	<.001
Systolic blood pressure (mm Hg)	118.7 ± 13.8	114.8 ± 15.3	<.001
Diastolic blood pressure (mm Hg)	75.6 ± 10.2	72.3 ± 12.1	<.001
HDL-C (mg/dL)	1.1 ± 0.3	1.3 ± 0.3	<.001
LDL-C (mg/dL)	3.4 ± 0.9	3.3 ± 0.8	<.001
TG (mg/dl)	1.6 ± 0.9	1.2 ± 0.7	<.001
TSH (U_/mL)	1.4 ± 0.8	1.6 ± 0.9	<.001
FPIS (μU/min)	197.4 ± 204.6	136.9 ± 171.9	<.001
SPIS (pmol/mmol)	0.082 ± 0.065	0.073 ± 0.069	<.001
IR (10−4 · min−1 · pmol−1 · L−1)	3.700 ± 0.025	3.688 ± 0.024	<.001
GE (10−2 · dL · min−1 · kg−1)	0.017 ± 0.003	0.018 ± 0.002	<.001

FPIS = first phase insulin secretion, GE = glucose effectiveness, HDL-C = high-density lipoprotein cholesterol, IR = insulin resistance, LDL-C = low-density lipoprotein cholesterol, SPIS = second phase insulin secretion, TG = triglyceride, TSH = thyroid stimulating hormone.

Data are shown mean ± SD.