| Euthyroid | Mildly hypothyroidb | P-value |
---|---|---|---|
Number of participants | 15 | 20 | Â |
Number of samples | 180 | 240 | Â |
Age, range (mean;SD), yearsa | 26–53 (39;10) | 27–78 (57;12) | < 0.001 |
Sex, men, n | 15 | 2 | < 0.001 |
Weight, mean (SD), kga | 81 (11) | 77 (14) | 0.32 |
Current smoker, n | 11 | 4 | 0.02 |
TSH, mean (SD), CV% | 1.27 (0.56), 44.0 | 7.19 (3.03), 42.1 | < 0.001 |
 0.3–4.5 mIU/L, n (%) | 180 (100) | 31 (12.9) |  |
 > 4.5 mIU/L, n (%) | 0 (0.0) | 209 (87.1) |  |
TT4, mean (SD), CV% | 106.4 (20.8), 19.6 | 85.5 (16.2), 18.9 | < 0.001 |
 60–140 nmol/L, n (%) | 179 (99.4) | 233 (97.1) | NS |
 < 60 nmol/L, n (%) | 1 (0.6) | 7 (2.9) |  |
fT4 index, mean (SD), CV% | 102.4 (20.9), 20.4 | Â | Â |
 70–140 nmol/L, n (%) | 176 (97.8) |  |  |
 < 70 nmol/L, n (%) | 4 (2.2) |  |  |
fT4, mean (SD), CV% | Â | 13.0 (2.4), 18.6 | Â |
 12 + pmol/L, n (%) |  | 188 (78.3) |  |
 < 12 pmol/l, n (%) |  | 52 (21.7) |  |