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. 2021 Mar 30;16(3):e0249421. doi: 10.1371/journal.pone.0249421

Table 3. Comparison of thyroid functions between severity of pneumonia at day 1 and at follow-up.

Tests Moderate Severe Critical
Covid (n = 22) Non-covid (n = 8) Covid (n = 9) Non-covid (n = 10) Covid (n = 17) Non-covid (n = 10)
TSH (mIU/L)
Day 1
1.31 ± 1.87* 1.28 ± 0.93 0.32 ± 0.22 2.34 ± 2.61 2.32 ± 3.44* 1.49 ± 2.14*
TSH (mIU/L)
Follow-up
1.13 ± 1.01* 1.68 ± 1.09 0.34 ± 0.14 1.27 ± 0.76 1.50 ± 1.44* 2 ± 2.68*
TT3 (ng/dL)
Day 1
75.64 ± 17.03* 111 ± 42.93* 67.44 ± 34.51 95.50 ± 51.08* 77.12 ± 48.22* 96.30 ± 44.86*
TT3 (ng/dL)
Follow-up
86.14 ± 17.67* 117.38 ± 38.23* 92.44 ± 42.68 88.70 ± 32.66* 93.65 ± 47.66* 102.60 ± 49.08*
TT4 (mcg/dL)
Day 1
6.91 ± 2.61* 7.88 ± 2.16 7.44 ± 1.81* 6 ± 2.40 5.94 ± 3.24* 5.70 ± 2.40*
TT4 (mcg/dL)
Follow-up
7.23 ± 2.15* 11.25 ± 2.91 7.44 ± 1.74* 9.60 ± 1.50 5.88 ± 2.73* 6.60 ± 1.71*

*P-value <0.05