Table 4.

Multivariable logistic analysis of associations between different NTIS types and mortality.

	Euthyroid	NTIS type 1	NTIS group 1
30-days mortality	1	1.489	6.488
	(ref)	0.788-2.827	1.546-27.808
		0.219	0.01*
60-days mortality	1	1.399	3.973
	(ref)	0.762-2.570	1.006-15.579
		0.276	0.046*
90-days mortality	1	1.335	3.849
	(ref)	0.730-2.241	0.977-15.088
		0.345	0.051
30-days mortality	1	1.564	3.349
	(ref)	0.842-2.925	1.402-7.957
		0.157	0.006*
60-days mortality	1	1.376	2.594
	(ref)	0.760-2.494	1.122-5.930
		0.29	0.024*
90-days mortality	1	1.282	2.55
	(ref)	0.710-2.314	1.110-5.804
		0.407	0.025*

NTIS, nonthyroidal illness syndrome.

NTIS type 1: low FT3 only; NTIS group 1:low FT3 and TSH levels, regardless of the FT4 values; NTIS group 2:low FT3 and FT4 levels, regardless of the TSH values.

Models adjusted for age, sex, all of comorbidities, all of infection sites, total bilirubin, creatinine, lactate, C-reactive protein, procalcitonin, platelets count, APACHEII score, non-invasive ventilation,invasive ventilation and vasopressors.

*p<0.05