Prognostic Value of Thyroid Hormone FT3 in General Patients Admitted to the Intensive Care Unit

Table 1

Baseline of characteristics of the study subjects.

Variable	Total ()	NTIS ()	Non-NTIS ()
Males (%)	31.5	30.5	32.1	0.96
Age (years)				0.06
Principal diagnosis leading to ICU admission (%)				<0.001
Sepsis or sepsis shock	31	25	6
Bodily injury	137	44	99
Brain injury	71	18	53
Severe disease of medicine	23	9	14
After operation	32	18	14
Tumor	9	7	2
Pulmonary embolism	2	1	1
APACHE II score				<0.001
GCS score				0.97
SOFA score				<0.001
FT3 (pmol/L)				<0.001
FT4 (pmol/L)				0.001
TSH (mIU/L)				0.148
Vital signs when enrolled
(°C)				0.387
HR				0.172
SBP (mmHg)				0.149
DBP (mmHg)				0.134
RR				0.448
ALB (g/L)				0.001
PCT (μg/L)				0.02
BNP (pg/mL)				0.003
WBC (×10^9/L)				0.222
HGB (g/L)
PLT (×10^9/L)				0.016
PT (s)				0.101
APTT (s)				0.032
FIB (g/L)				0.848
Lactic acid (mmol/L)				0.113
PCO2 (mmHg)				0.379
Oxygenation index (PaO2/FIO2)				0.535
CREA (μmol/L)				0.006
TBil (mmol/L)				0.084
Na (mmol/L)				0.744
K (mmol/L)				0.664

NTIS: nonthyroidal illness syndrome; APACHE II score, acute physiology and chronic health evaluation II score; GCS: Glasgow coma scale; SOFA: sequential organ failure score; FT3: free triiodothyronine; FT4; free thyroxine; TSH: thyroid-stimulating hormone; : temperature; HR: heart rate; SBP: systolic blood pressure; DBP: diastolic blood pressure; RR: respiratory rate; ALB: albumin; PCT: procalcitonin; BNP; brain natriuretic peptide; WBC: white blood cell; HGB: hemoglobin; PLT: blood platelet; PT: prothrombin time; APTT: activated partial thromboplastin time; FIB: fibrinogen; PCO₂: pressure of carbon dioxide; PaO₂: pressure of oxygen; FIO₂: fraction of inspired oxygen; CREA: creatinine; TBil: total bilirubin.