Table 2.
Baseline and demographic characteristics of study subjects
| Variables | NTIS (n=64) | No NTIS (n=61) | P |
|---|---|---|---|
| Age (yr. median, range) | 66 (61-75) | 65 (58-72) | 0.17 |
| Male (n, %) | 51 (79) | 50 (81) | 0.74 |
| APACHE II score (median, range) | 29 (23-35) | 24 (19-28) | <0.001 |
| BMI (median, range) | 26 (27-34) | 28 (26-31) | 0.51 |
| Accompanying infections (n, %) | 48 (75) | 18 (30) | <0.001 |
| Prolonged Weaning (n, %) | 46 (71) | 19 (31) | <0.001 |
| Thyroid function | |||
| fT3 (pg/mL) | 1.60 (0.90-1.88) | 2.48 (2.31-2.70) | <0.001 |
| fT4 (pg/mL) | 0.97 (0.73-1.13) | 1.21 (1.06-1.67) | <0.001 |
| TSH (mIU/mL) | 0.75 (0.38-1.47) | 0.45 (0.14-2.20) | <0.001 |
NTIS: Non-thyroidal illness syndrome. APACHE II, Acute Physiology and Chronic Health Evaluation II, fT3, free triiodothyronine, fT4, free thyroxine, TSH, thyroid-stimulating hormone.