Thyroid Function in Korean Adolescents with Obesity: Results from the Korea National Health and Nutrition Examination Survey VI (2013–2015)

Table 2

Results of linear regression analysis of factors associated with TSH concentration.

Variables	Unadjusted			Adjusted for sex and age
	Coefficient β	S.E.	value	Coefficient β	S.E.	value
BMI z-score	0.09	0.04	0.032	0.08	0.04	0.031
Waist circumference	0.008	0.005	0.118	0.014	0.006	0.013
Waist-height ratio	2.92	1.01	0.004	2.90	0.98	0.002
Systolic BP	0.015	0.005	0.004	0.017	0.005	0.001
Diastolic BP	0.003	0.007	0.666	0.011	0.007	0.103
HbA1c	0.27	0.14	0.051	0.21	0.15	0.170
Fasting glucose	0.015	0.004	0.002	0.011	0.006	0.052
Total cholesterol	0.81	0.31	0.010	0.87	0.33	0.008
Triglyceride	0.30	0.10	0.004	0.33	0.10	0.002
HDL-C	0.18	0.29	0.535	0.21	0.29	0.464
ALT	0.0001	0.004	0.965	0.001	0.004	0.821

TC, TG, and HDL-C were log-transformed for analysis. TSH: thyroid-stimulating hormone; BMI: body mass index; BP: blood pressure; HbA1c: glycated hemoglobin; HDL-C: high-density lipoprotein cholesterol; ALT: alanine transaminase.