Table 2.

The demographic data, clinical and biochemical parameters in quartiles of thyroid stimulation hormone.

	TSH tertile 1	TSH tertile 2	TSH tertile 3	TSH tertile 4	P
Male
n	6169	5820	6073	6345
Age (yr)	42.3 ± 8.6234	41.3 ± 8.31	41.2 ± 8.21	41.4 ± 8.21	<.001
Body mass index (kg/m2)	24.0 ± 2.84	24.0 ± 2.9	24.2 ± 3.0	24.2 ± 3.01	<.001
Systolic blood pressure (mm Hg)	118.1 ± 14.04	118.3 ± 13.74	118.7 ± 13.5	119.6 ± 13.712	<.001
Diastolic blood pressure (mm Hg)	74.8 ± 10.234	75.3 ± 10.14	75.7 ± 10.114	76.6 ± 10.2123	<.001
HDL-C (mg/dl)	1.088 ± 0.323	1.093 ± 0.319	1.079 ± 0.323	1.081 ± 0.320	.055
LDL-C (mg/dl)	3.387 ± 0.859	3.420 ± 0.853	3.421 ± 0.856	3.431 ± 0.868	.025
TG (mg/dL)	1.520 ± 0.85434	1.549 ± 0.8574	1.595 ± 0.90014	1.677 ± 0.948123	<.001
TSH (U/_mL)	0.682 ± 0.190234	1.105 ± 0.100134	1.503 ± 0.142124	2.448 ± 0.665123	<.001
FPIS (μU/min)	188.6 ± 170.134	188.7 ± 174.234	205.4 ± 239.612	206.1 ± 223.312	<.001
SPIS (pmol/mmol)	0.079 ± 0.0494	0.081 ± 0.057	0.084 ± 0.068	0.084 ± 0.0821	<.001
IR (10−4 · min−1 · pmol−1 · L−1)	3.697 ± 0.02434	3.699 ± 0.0244	3.700 ± 0.02614	3.702 ± 0.026123	<.001
GE (10−2 · dL · min−1 · kg−1)	0.017 ± 0.0034	0.017 ± 0.0034	0.017 ± 0.0034	0.017 ± 0.003123	<.001
Female
n	6274	6233	6262	6120
Age (yr)	43.5 ± 9.023	42.5 ± 8.51	42.4 ± 8.51	42.9 ± 8.5	<.001
Body mass index (kg/m2)	23.1 ± 3.1	23.0 ± 3.14	23.0 ± 3.24	23.3 ± 3.323	<.001
Systolic blood pressure (mm Hg)	114.9 ± 15.4	114.2 ± 15.14	114.7 ± 15.3	115.7 ± 15.42	<.001
Diastolic blood pressure (mmHg)	71.9 ± 10.24	72.0 ± 14.14	72.3 ± 13.1	73.1 ± 10.412	<.001
HDL-C (mg/dl)	1.306 ± 0.3504	1.297 ± 0.342	1.306 ± 0.3474	1.281 ± 0.34313	<.001
LDL-C (mg/dl)	3.251 ± 0.827	3.258 ± 0.814	3.284 ± 0.831	3.291 ± 0.848	.018
TG (mg/dL)	1.128 ± 0.6384	1.125 ± 0.6294	1.162 ± 0.6624	1.230 ± 0.711123	<.001
TSH (U/_mL)	0.656 ± 0.226234	1.163 ± 0.126134	1.651 ± 0.172124	2.809 ± 0.763123	<.001
FPIS (μU/min)	131.1 ± 150.64	133.4 ± 163.64	136.3 ± 179.6	146.9 ± 190.912	<.001
SPIS (pmol/mmol)	0.072 ± 0.073	0.072 ± 0.073	0.073 ± 0.062	0.076 ± 0.070	.002
IR (10−4 · min−1 · pmol−1 · L−1)	3.687 ± 0.0234	3.687 ± 0.0244	3.688 ± 0.0254	3.691 ± 0.025123	<.001
GE (10−2 · dL · min−1 · kg−1)	0.018 ± 0.0034	0.019 ± 0.0024	0.019 ± 0.0024	0.018 ± 0.003123	<.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, the upper case of the numbers on the left side of the values indicate there are significant difference against that particular group