Laboratory Medicine ›› 2020, Vol. 35 ›› Issue (9): 885-888.DOI: 10.3969/j.issn.1673-8640.2020.09.007

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Correlation and risk assessment of serum 25(OH)D level and multiple thyroid function indicators in patients with thyroid cancer before operation

CHEN Gang, WANG Jing, DENG Qiang, CHEN Xi, HU Dong, ZHUANG Lidong   

  1. Department of Clinical Laboratory,Mianyang Central Hospital,Mianyang 621000,Sichuan,China
  • Received:2019-03-18 Online:2020-09-30 Published:2020-09-29

Abstract:

Objective To investigate the changes of serum 25-hydroxyvitamin D [25(OH)D] levels in patients with thyroid cancer and the correlation with serum thyroid function indicators and the risk of thyroid cancer. Methods A total of 56 patients with thyroid cancer(thyroid cancer group) and 69 patients with benign thyroid nodules(benign nodule group) were enrolled. Serum 25(OH)D,free triiodothyronine(FT3) and free thyroxine(FT4),thyroid-stimulating hormone(TSH),thyroglobulin(Tg),thyroid peroxidase antibody(TPOAb) and thyroglobulin antibody(TgAb) levels were determined. According to the level of 25(OH)D,all the subjects were classified into 3 groups,including vitamin D deficiency(≤20 ng/mL),vitamin D insufficiency(>20-≤30 ng/mL)and vitamin D sufficiency(>30 ng/mL) groups. Spearman correlation analysis was used to evaluate the correlation among various indicators. Odds ratio (OR) and 95% confidence interval (CI) were used to evaluate the risk of thyroid cancer. Results Serum level of 25(OH)D in thyroid cancer group was lower than that in benign nodule group(P<0.01),and serum TSH level was higher(P<0.05). There was no statistical significance in the other indicators between the 2 groups(P>0.05). In thyroid cancer group,25(OH)D was negatively correlated with TSH and TPOAb(r=-0.750 and -0.872,respectively,P<0.01),and it had no correlation with FT3,FT4,Tg and TgAb levels(r=0.104,0.03,-0.134 and -0.149,respectively,P>0.05). The risk of thyroid cancer was increased when 25(OH)D≤20 ng/mL (OR=7.990,95% CI 1.640-38.100). Conclusions 25(OH)D levels are correlated with thyroid cancer,and low 25(OH)D level may increase the risk of thyroid cancer.

Key words: 25-Hydroxyvitamin D, Thyroid function indicator, Thyroid cancer, Risk assessment

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