Association between serum thyrotropin within the euthyroid range and obesity

Endocrine journal

Yufeng Li¹  Xiuying Zhang² 

[1] Department of Endocrinology and Metabolism, Capital Medical University Pinggu Teaching Hospital, Beijing 101200, China;Department of Endocrinology and Metabolism, Peking University People’s Hospital, Peking University Diabetes Centre, Beijing 100044, China

关键词: Thyroid hormones;    Thyrotropin;    Obesity;    Epidemiology;   

DOI  :  10.1507/endocrj.EJ18-0140

学科分类：内分泌与代谢学

来源: Japan Endocrine Society

【 摘 要 】

The relationship between variations in thyroid function and indices of obesity remains a focus of debate. To explore the associations between thyroid function within the normal range and obesity and to evaluate potential modifying factors, we analyzed a large and well-characterized community cohort in Beijing, China, containing 1,816 men and 1,774 women with serum thyrotropin (TSH) levels within the reference range (0.55–4.78 μIU/mL). Associations between TSH levels and BMI were identified using correlation analysis, ANOVA and Chi-square tests. Logistic regression analyses were used to estimate the impact of serum TSH on obesity before and after adjustment for possible confounding factors. The mean serum TSH was 2.04 ± 0.94 μIU/mL. TSH within the reference range was positively associated with BMI in both genders. Compared with euthyroid adults whose TSH was in the middle quartiles (TSH 1.30–2.60 μIU/mL) of the reference range, the odds of obesity (BMI ≥ 28.0 kg/m2) and severe obesity (BMI ≥ 33.0 kg/m2) was 38% (OR = 1.38, 95% CI 1.17–1.64) and 58% (OR = 1.58, 95% CI 1.12–2.21) more likely, respectively, among those with TSH in the upper quartile. For women, postmenopausal subjects with lower TSH levels had a lower risk of severe obesity (OR = 0.42, 95% CI 0.20–0.91) than those in the middle TSH quartile. Positive associations were found between serum TSH within the euthyroid range and obesity, and menopause showed a significant influence on the relationship between TSH level and severe obesity.

【 授权许可】

Unknown