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Table 3 Comparison between low and normal-high FT4 groups in patients with COVID-19 presenting with NTI

From: Prognostic significance of low TSH concentration in patients with COVID-19 presenting with non-thyroidal illness syndrome

  Low FT4
(n = 16)
Normal-high FT4
(n = 134)
P value
Age, y, M (IQR) 64.5 (41.75, 71.75) 70 (62.25, 79.75) 0.077
Gender (female n, %) 8 (50%) 61 (45.52%) 0.734
Critical illness (n, %) 9 (56.25%) 57 (42.54%) 0.296
Mortality (n, %) 8 (50%) 34 (25.37%) 0.038
WBC, *10^9/L, M (IQR) 10.35 (8.34, 26.87) 10.92 (7.79, 16.65) 0.455
LC, *10^9/L, M (IQR) 1.175 (0.72, 1.75) 1.48 (0.98, 1.87) 0.284
CRP, mg/L, M (IQR) 71.75 (37.65, 225.1) 95.3 (42.675, 172.2) 0.886
Ferroprotein, ug/L, M (IQR) 1782.2 (767.95, 7462.3) 1221.9 (618.6, 2303.05) 0.214
PCT, ng/mL, M (IQR) 0.97 (0.15, 8.56) 0.17 (0.08, 0.87) 0.021
ALT, U/L, M (IQR) 47 (23.75, 76) 43 (21.25, 73.75) 0.976
AST, U/L, M (IQR) 91.5 (38.25, 221.25) 43 (26, 68.75) 0.025
ALB, g/L, M (IQR) 32 (29.55, 34.55) 35.7 (30.7, 39.3) 0.277
LDH, U/L, M (IQR) 347 (248, 405) 216.5 (177, 272.5) 0.066
CR, umol/L, M (IQR) 124.5 (82.5, 214.5) 87 (66.5, 114) 0.029
UREA, mmol/L, M (IQR) 17.9 (5.73, 28.5) 8.55 (5.7, 14.33) 0.06
cTnI, pg/mL, M (IQR) 287 (8.7, 803.4) 15.9 (6.4, 139) 0.189
D2D, ug/mL FEU, M (IQR) 7.51 (1.85, 21) 5.24 (1.39, 18.94) 0.479
FT3, pmol/L, M (IQR) 2.36 (1.8, 2.795) 2.69 (2.3625, 2.91) 0.027
FT4, pmol/L, M (IQR) 10.55 (9.01, 11.69) 16.75 (14.38, 18.46) /
TSH, uIU/mL, M (IQR) 1.82 (0.62, 2.15) 0.897 (0.41, 1.79) 0.235