|  | NC | Fresh ET | Frozen ET | Fresh ET vs. NC | Fresh ET vs. Frozen ET | Frozen ET vs. NC |
---|---|---|---|---|---|---|---|
(n = 380) | (n = 357) | (n = 212) | P value | P value | P value | ||
T4 | >150.84 (nmol/L) | 0 (0%) | 2 (0.6%) | 0 (0%) | 0.23 | 0.53 | NA |
FT4 | >19.05 (pmol/L) | 0 (0%) | 26 (7.3%) | 10 (4.7%) | <0.01 | 0.29 | <0.01 |
TSH | >5.05 (mIU/L) | 3 (0.08%) | 22 (6.2%) | 5 (2.4%) | <0.01 | 0.04 | 0.14 |