Research Article

Clinical Associations of Thyroid Hormone Levels with the Risk of Atherosclerosis in Euthyroid Type 2 Diabetic Patients in Central China

Table 1

Anthropometric characteristics of the study population with and without previously diagnosed CVD.

TotalWithout atherosclerosisWith atherosclerosis value

N910537 (59.0%)373 (41.0%)
Age (years)51.9 (13.1)46.3 (11.4)59.9 (11.0)<0.001
BMI (kg/m2)25.3 (3.8)25.5 (4.0)24.9 (3.4)0.044
Gender (%)0.126
 F523 (57.5%)320 (35.2%)203 (22.3%)
 M387 (42.5%)217 (23.8%)170 (18.7%)

Smoking status (%)0.005
 Nonsmoker529 (58.1%)289 (31.8%)240 (26.4%)
 Ex-smoker110 (12.1%)73 (8.0%)37 (4.1%)
 Smoker271 (29.8%)175 (19.2%)96 (10.5%)

Years of T2D5 [2, 10]3 [0.6, 6]10 [7, 15]<0.001
HbA1c (%)8.4 [7.2, 9.9]8.4 [7.1, 9.9]8.4 [7.4, 9.9]0.218
FPG8.4 [6.8, 10.7]8.3 [6.8, 10.5]8.7 [7.0, 10.9]0.343

Thyroid hormones
 FT3 (pmol/L)4.41 [4.11, 4.76]4.5 [4.19, 4.87]4.26 [3.95, 4.6]<0.001
 FT4 (pmol/L)16.14 [14.64, 17.75]16.38 [14.76, 18.23]15.68 [14.42, 17.46]0.001
 TSH (μIU/mL)2.11 [1.36, 3.10]1.99 [1.30, 3.04]2.21 [1.43, 3.17]0.083
 FT3/FT40.27 [0.25, 0.31]0.28 [0.25, 0.31]0.27 [0.25, 0.3]0.328

Blood pressure
 SBP (mmHg)135 [122, 149]132 [120, 145]138 [126, 153]<0.001
 DBP (mmHg)85 [80, 90]86 [80, 90.75]83 [79, 90]0.013

Lipid profiles
 TC (mmol/L)4.88 [4.2, 5.62]4.83 [4.20, 5.58]4.92 [4.22, 5.67]0.582
 TG (mmol/L)1.62 [1.10, 2.63]1.71 [1.11, 2.81]1.55 [1.1, 2.27]0.029
 HDL-C (mmol/L)1.11 [0.95, 1.27]1.1 [0.94, 1.26]1.12 [0.96, 1.30]0.252
 LDL-C (mmol/L)2.92 [2.36, 3.5]2.95 [2.35, 3.48]2.92 [2.36, 3.53]0.868

T2D treatments
 Diet107 (11.8%)96 (10.5%)11 (1.2%)<0.001
 Oral drugs529 (58.1%)357 (39.2%)172 (18.9%)<0.001
 Insulin injection94 (10.3%)53 (5.8%)41 (4.5%)0.662
 Oral drugs and insulin180 (19.8%)31 (3.4%)149 (16.4%)<0.001

History of other diseases
 CVD396 (43.5%)108 (11.9%)288 (31.6%)<0.001
 Hypertension532 (58.5%)247 (27.1%)285 (31.3%)<0.001
 Hyperlipidemia392 (43.1%)156 (17.1%)236 (25.9%)<0.001
 Family history of T2D469 (51.5%)299 (32.9%)170 (18.7%)0.006

Medications
 Hypertension408 (44.8%)156 (17.1%)252 (27.7%)<0.001
 Hyperlipidemia242 (26.6%)65 (7.1%)177 (19.5%)<0.001

Data are expressed as mean (SD), median (25% quantile, 75% quantile), or count (percentage) depending on the variable type. The value was calculated by independent two-sample t-tests, Mann–Whitney U test, or chi-square test accordingly.When , when , and when . BMI: body mass index; FPG: fasting plasma glucose; SBP: systolic blood pressure; DBP: diastolic blood pressure; TC: total cholesterol; TG: triglycerides; LDL-C: low-density lipoprotein cholesterol; and HDL-C: high-density lipoprotein cholesterol.