From: Correlation between a low serum free triiodothyronine level and mortality of severe pulmonary tuberculosis patients
Age group, years
FT3 (N = 383)
16–19
8 (2.1%)
20–29
30 (7.8%)
30–39
23 (6.0%)
40–49
21 (5.5%)
50–59
41 (10.7%)
60–69
74 (19.3%)
70–79
92 (24.0%)
80–89
80 (20.9%)
≥90
14 (3.7%)