Abstract
To investigate the relationship between thyroid function and carotid intima-media thickness (CIMT) in a relatively large general population with euthyroid status we initially enrolled 1772 Japanese adults (421 men and 1351 women) who participated in a medical screening program for the general population over 40 years old. To evaluate only euthyroid subjects without vascular diseases and/or its major risk factors, 1129 were excluded and 643 participants (175 men and 468 women) were included for further analysis. Simple and multivariate linear regression analyses were performed to evaluate free thyroxine (fT4) and thyroid-stimulating hormone (TSH) levels and other existing parameters, including carotid intima-media thickness. By multivariate linear regression analysis adjusted for age and sex, free thyroxine was significantly correlated with triglycerides (β = 0.07, p = 0.015), carotid intima-media thickness (β = -0.091, p = 0.049), and thyroid-stimulating hormone (β = -0.091, p = 0.003). Thyroid-stimulating hormone was significantly correlated with high-density lipoprotein cholesterol (HDL-C) (β = -0.001, p = 0.015), HbA1c (β = 0.038, p = 0.045), carotid intima-media thickness (β = 0.27, p = 0.001), and free thyroxine (β = -0.15, p = 0.003). When adjusted for confounding factors, free thyroxine was significantly correlated only with carotid intima-media thickness (β = -0.13, p = 0.043) and thyroid-stimulating hormone was significantly correlated with HDL-C (β = -0.001, p <0.001), HbA1c (β = 0.04, p = 0.021), and carotid intima-media thickness (β = 0.29, p = 0.001). We have demonstrated that carotid intima-media thickness is independently associated with thyroid function within the normal reference range, which suggests an increased cardiovascular risk in subjects with low normal thyroid function.
| Original language | English |
|---|---|
| Journal | Atherosclerosis |
| Volume | 204 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - Jun 2009 |
| Externally published | Yes |
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Keywords
- Cardiovascular risk
- Carotid intima-media thickness
- Euthyroid
- Free thyroxine (fT4)
- Thyroid-stimulating hormone (TSH)
ASJC Scopus subject areas
- Cardiology and Cardiovascular Medicine
Cite this
Thyroid function is associated with carotid intima-media thickness in euthyroid subjects. / Takamura, Noboru; Akilzhanova, Ainur; Hayashida, Naomi; Kadota, Koichiro; Yamasaki, Hironori; Usa, Toshiro; Nakazato, Mio; Maeda, Takahiro; Ozono, Yoshiyuki; Aoyagi, Kiyoshi.
In: Atherosclerosis, Vol. 204, No. 2, 06.2009.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Thyroid function is associated with carotid intima-media thickness in euthyroid subjects
AU - Takamura, Noboru
AU - Akilzhanova, Ainur
AU - Hayashida, Naomi
AU - Kadota, Koichiro
AU - Yamasaki, Hironori
AU - Usa, Toshiro
AU - Nakazato, Mio
AU - Maeda, Takahiro
AU - Ozono, Yoshiyuki
AU - Aoyagi, Kiyoshi
PY - 2009/6
Y1 - 2009/6
N2 - To investigate the relationship between thyroid function and carotid intima-media thickness (CIMT) in a relatively large general population with euthyroid status we initially enrolled 1772 Japanese adults (421 men and 1351 women) who participated in a medical screening program for the general population over 40 years old. To evaluate only euthyroid subjects without vascular diseases and/or its major risk factors, 1129 were excluded and 643 participants (175 men and 468 women) were included for further analysis. Simple and multivariate linear regression analyses were performed to evaluate free thyroxine (fT4) and thyroid-stimulating hormone (TSH) levels and other existing parameters, including carotid intima-media thickness. By multivariate linear regression analysis adjusted for age and sex, free thyroxine was significantly correlated with triglycerides (β = 0.07, p = 0.015), carotid intima-media thickness (β = -0.091, p = 0.049), and thyroid-stimulating hormone (β = -0.091, p = 0.003). Thyroid-stimulating hormone was significantly correlated with high-density lipoprotein cholesterol (HDL-C) (β = -0.001, p = 0.015), HbA1c (β = 0.038, p = 0.045), carotid intima-media thickness (β = 0.27, p = 0.001), and free thyroxine (β = -0.15, p = 0.003). When adjusted for confounding factors, free thyroxine was significantly correlated only with carotid intima-media thickness (β = -0.13, p = 0.043) and thyroid-stimulating hormone was significantly correlated with HDL-C (β = -0.001, p <0.001), HbA1c (β = 0.04, p = 0.021), and carotid intima-media thickness (β = 0.29, p = 0.001). We have demonstrated that carotid intima-media thickness is independently associated with thyroid function within the normal reference range, which suggests an increased cardiovascular risk in subjects with low normal thyroid function.
AB - To investigate the relationship between thyroid function and carotid intima-media thickness (CIMT) in a relatively large general population with euthyroid status we initially enrolled 1772 Japanese adults (421 men and 1351 women) who participated in a medical screening program for the general population over 40 years old. To evaluate only euthyroid subjects without vascular diseases and/or its major risk factors, 1129 were excluded and 643 participants (175 men and 468 women) were included for further analysis. Simple and multivariate linear regression analyses were performed to evaluate free thyroxine (fT4) and thyroid-stimulating hormone (TSH) levels and other existing parameters, including carotid intima-media thickness. By multivariate linear regression analysis adjusted for age and sex, free thyroxine was significantly correlated with triglycerides (β = 0.07, p = 0.015), carotid intima-media thickness (β = -0.091, p = 0.049), and thyroid-stimulating hormone (β = -0.091, p = 0.003). Thyroid-stimulating hormone was significantly correlated with high-density lipoprotein cholesterol (HDL-C) (β = -0.001, p = 0.015), HbA1c (β = 0.038, p = 0.045), carotid intima-media thickness (β = 0.27, p = 0.001), and free thyroxine (β = -0.15, p = 0.003). When adjusted for confounding factors, free thyroxine was significantly correlated only with carotid intima-media thickness (β = -0.13, p = 0.043) and thyroid-stimulating hormone was significantly correlated with HDL-C (β = -0.001, p <0.001), HbA1c (β = 0.04, p = 0.021), and carotid intima-media thickness (β = 0.29, p = 0.001). We have demonstrated that carotid intima-media thickness is independently associated with thyroid function within the normal reference range, which suggests an increased cardiovascular risk in subjects with low normal thyroid function.
KW - Cardiovascular risk
KW - Carotid intima-media thickness
KW - Euthyroid
KW - Free thyroxine (fT4)
KW - Thyroid-stimulating hormone (TSH)
UR - http://www.scopus.com/inward/record.url?scp=67349094598&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=67349094598&partnerID=8YFLogxK
U2 - 10.1016/j.atherosclerosis.2008.09.022
DO - 10.1016/j.atherosclerosis.2008.09.022
M3 - Article
C2 - 18977482
AN - SCOPUS:67349094598
VL - 204
JO - Atherosclerosis
JF - Atherosclerosis
SN - 0021-9150
IS - 2
ER -