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. 2021 Oct 14;12:750749. doi: 10.3389/fpsyt.2021.750749

Table 3.

The distribution of levels of thyroid hormones within and outside the normal range in the MDD and HC groups.

TSH FT3 FT4
<0.35 0.35–4.94 >4.94 <2.63 2.63–5.7 >5.70 <9.01 9.01–19.05 >19.05
MDD 11 (2.05%) 504 (94.03%) 21 (3.92%) 9 (525; 1.70%) 467 (89.00%) 49 (9.30%) 6 (525; 1.14%) 460 (87.62%) 59 (11.24%)
HCs 7 (0.70%) 957 (95.89%) 34 (3.50%) 3 (998; 0.30%) 946 (94.80%) 49 (4.90%) 0 (998; 0.00%) 898 (89.98%) 100 (10.02%)
χ2 = 5.49 χ2 = 2.67 χ2 = 0.26 χ2 = 8.80 χ2 = 17.49 χ2 = 11.18 χ2 = 11.45 χ2 = 1.99 χ2 = 0.25
p = 0.019 p = 0.102 p = 0.608 p = 0.003 p = 0.0001 p = 0.001 p = 0.002 p = 0.159 p = 0.460

MDD, major depressive disorder, HCs, healthy controls.