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Table 1 Characteristics of study population

From: Association between thyroid-stimulating hormone (TSH) and proteinuria in relation to thyroid cyst in a euthyroid general population

  Thyroid cyst p
(−) (+)
No. of participants 1070 525  
Men, % 40.6 28.8 < 0.001
Postmenopausal women, % 44.7 59.8 < 0.001
Age, year 59.7 ± 9.4 62.0 ± 8.2 < 0.001
free T3, pg/mL 3.18 ± 0.32 3.15 ± 0.31 0.079
free T4, ng/dL 1.26 ± 0.16 1.24 ± 0.15 0.117
TSH, μIU/mL 1.52 [1.09, 2.14]*1 1.54 [1.07, 2.16]*1 0.689*2
TSHI 2.59 ± 0.52 2.57 ± 0.53 0.648
SPINA-GT, pmol/s 3.7 ± 1.4 3.7 ± 1.3 0.497
SPINA-GD, nmol/s 28.3 ± 3.8 28.3 ± 3.9 0.963
BMI, kg/m2 22.8 ± 3.3 22.6 ± 3.4 0.414
SBP, mmHg 124 ± 17 126 ± 17 0.003
DBP, mmHg 73 ± 11 74 ± 10 0.032
Current smoker, % 15.4 11.6 0.041
Daily drinker, % 41.2 39.6 0.542
HbA1c, % 5.6 ± 0.6 5.6 ± 0.5 0.055
TG, mg/dL 107 ± 81 101 ± 60 0.157
HDLc, mg/dL 60 ± 15 62 ± 15 0.110
GFR, mL/min/1.73 m2 71.8 ± 13.2 71.5 ± 12.7 0.633
  1. T3 triiodothyronine, T4 thyroxine, TSH thyroid-stimulating hormone, TSHI Jostel’s TSH index, SPINA-GT maximum thyroid secretory capacity, SPINA-GD overall activity of peripheral deiodinases, BMI body mass index, SBP systolic blood pressure, DBP diastolic blood pressure, HbA1c hemoglobin A1c, TG triglycerides, HDLc high-density lipoprotein cholesterol, GFR glomerular filtration rate. Values are mean ± standard deviation
  2. *1: Values are median [the first quartile, third quartile]. Regression model for mean values was used for determining p values.
  3. *2: Logarithmic transformation was used for evaluating p