Fig 1.
Number of outliers excluded from the entire data base by the two-sided Tuckey test (1.5IQR) for each studied age group.
Fig 2.
A representative Q-Q plot of distribution of lnTSH for participants aged ≥18 and <40.
Fig 3.
RIs for TSH (panel A) and fT4 (panel B) in all participants included in the analysis groups and among males and females in each age group.
Table 1.
Estimation of reference intervals with the Q-Q plot method for all TSH results and percentage differences in TSH reference between women and men.
Table 2.
Comparison of calculated TSH reference intervals with RIs reported by manufacturer.
Table 3.
Estimation of reference intervals with the Q-Q plot method for all fT4 results and percentage differences in TSH reference between women and men.
Table 4.
Comparison of calculated fT4 reference intervals with RIs reported by manufacturer.
Table 5.
Comparison of reference intervals for TSH and fT4 obtained by different indirect methods.