Research Article
Isolated Vitamin D Deficiency Is Not Associated with Nonthyroidal Illness Syndrome, but with Thyroid Autoimmunity
Table 1
Clinical characteristics of the participants according to group.
| | Group 1 (severe vitamin D deficiency) | Group 2 (moderate vitamin D deficiency) | Group 3 (normal vitamin D level) | |
| | 53 | 61 | 41 | | Male/female | 4/49 | 10/51 | 10/31 | 0.05 | Current smokers (%) | 40.0 | 27.0 | 22.2 | >0.05 | Age (years) | 42.4 ± 2.0 |
37.9 ± 1.7 | 39.5 ± 1.9 | >0.05 | BMI (kg m−2) | 26.1 ± 1.2 | 26.3 ± 1.0 | 24.9 ± 0.9 | >0.05 | WC (cm) | 93.8 ± 2.9 | 91.0 ± 2.4 | 85.5 ± 2.5 | 0.04 | FBG (mg dL−1) | 82.7 ± 1.9 | 79.7 ± 1.6 | 83.4 ± 1.8 | >0.05 | HDL-C (mg dL−1) | 51.1 ± 2.1 | 48.7 ± 1.9 | 47.1 ± 2.1 | >0.05 | LDL-C (mg dL−1) | 112.7 ± 5.5 | 106.6 ± 4.9 | 112.1 ± 5.4 | >0.05 | TG (mg dL−1) | 132.0 ± 9.0 | 114.1 ± 8.1 | 126.6 ± 8.8 | >0.05 | Fasting insulin (IU mL−1) | 10.8 ± 1.2 | 9.4 ± 1.0 | 9.0 ± 1.1 | >0.05 | HOMA-IR (%) | 2.1 ± 0.4 | 1.6 ± 0.4 | 1.5 ± 0.4 | >0.05 | TSH (mIU mL−1) | 1.2 ± 0.15 | 1.5 ± 0.1 | 1.9 ± 0.1 | 0.008 | FT4 (ng dL−1) | 1.0 ± 0.0 | 1.1 ± 0.0 | 1.1 ± 0.0 | >0.05 | FT3 (ng dL−1) | 2.8 ± 0.0 | 2.8 ± 0.0 | 2.7 ± 0.0 | >0.05 | Anti-TPO positivity (%) | 62.7 | 71.7 | 24.2 | 0.000 | Anti-Tg positivity (%) | 21.6 | 21.7 | 25.6 | >0.05 |
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BMI: body mass index; WC: waist circumference; FBG: fasting blood glucose; HDL-C: high-density cholesterol; LDL-C: low-density cholesterol; TG: triglyceride.
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