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. 2021 Aug 25;10(17):3804. doi: 10.3390/jcm10173804

Figure 1.

Figure 1

Scatterplots of T3, fT4, and TSH in relation to BMI. Abbreviations: body mass index (BMI), free thyroxine (fT4), triiodothyronine (T3), thyroid-stimulating hormone (TSH). Only patients without hyperthyroidism, hypothyroidism, or subclinical hypothyroidism are depicted in this figure. Legends: males are depicted by closed dots and females by open dots. The solid line represents the median, while the dashed line with the grey rectangle represents the interquartile range. The reference range is given as a green, transparent rectangle. (A) T3 vs. BMI for males and females; (B) fT4 vs. BMI for males and females; (C) TSH vs. BMI for males and females. Reference values: TSH: before 1 February 2019: 0.4–4.3 mU/L (n = 69), after 1 February 2019: 0.56–4.27 mU/L (n = 28); fT4: before 12 April 2019: 11–25 pmol/L (n = 73), after 12 April 2019: 13.5–24.3 pmol/L (n = 22); T3: before 12 April 2019: 1.4–2.5 (n = 33), after 12 April 2019: 0.7–2.0 nmol/L (n = 12). Only the reference range that was valid for the most observations is shown.