FIG. 3.

Comparison between the whole and the euthyroid subsample. Top: Estimated mean levels of thyrotropin (TSH) and anthropometric markers with 95% confidence intervals by serum 3,5-diiodothyronine concentrations calculated by analysis of variance adjusted for age and sex. p_whole and p_eut, p-values from analysis of variance (ANOVA) about an overall difference between groups in the whole and euthyroid sample, respectively. Significant differences between groups were marked for comparison with the ^†lowest and ^‡intermediate (p<0.05). Bottom: Predicted mean values of the same parameters conditioned on 3,5-diiodothyronine serum concentrations >0.2 nM for a 50-year-old man from linear regression analysis. Corresponding p-values are listed in Table 2.