Table 1.

Baseline characteristics in first hospitalization.

Characteristic	Mean ± SD, median, (range)
Age (years)	67.8 ± 16.7, 69.5 (18–97)
TSH (IU/L)	6.6 ± 1.3, 6.3 (5–11.2)
FT4 (pmol/L)	12.9 ± 2.6, 12.9 (9–19.1)
CRP (mg/L)	34.5 ± 55.1, 10.6 (0.6–288.9)
Creatinine (mg/dl)	1.4 ± 1.2, 1.0 (0.5–10.3)

FT4 free T4, CRP C-reactive protein.