Table 2 The comparation of early hypothyroid risk factors between non-hypothyroid group and hypothyroid group
Variables | Non-hypothyroid | Hypothyroid | P value |
|---|---|---|---|
Male: Female | 4: 90 | 50: 168 | 0.001 |
Age (years) | 43.82 ± 13.17 | 45.60 ± 12.63 | 0.261 |
Duration of Graves’ hyperthyroidism (months) | 12 (1, 240) | 6 (1, 376) | 0.019 |
ATD therapy history: Non-ATD therapy history | 63: 20 | 184: 45 | 0.393 |
Thyroid weight (g) | 60.83 (23.02, 239.00) | 49.82 (19.12, 163.3) | 0.001 |
FT3 (pmol/L) | 22.48 (4.68, 36.70) | 21.33 (4.35, 36.69) | 0.341 |
FT4 (pmol/L) | 57.75 (3.51, 154.80) | 49.55 (13.04, 154.80) | 0.091 |
TSH (uIU/mL) | 0.005 (0.001, 0.100) | 0.005 (0.001, 0.250) | 0.304 |
TPOAb (IU/mL) | 1300 (23.30, 1300.00) | 1300 (27.00, 1300.00) | 0.514 |
TRAb (IU/mL) | 13.56 (0.30, 40.00) | 12.72 (0.30, 40.00) | 0.601 |
2-h RAIU | 39.86 (7.80, 83.69) | 35.49 (9.01, 81.98) | 0.009 |
6-h RAIU | 70.38 (14.40, 95.62) | 65.41 (16.53, 95.51) | 0.001 |
24-h RAIU | 74.20 (29.10, 99.90) | 71.37 (27.29, 97.11) | 0.008 |
6/24-h uptake ratio | 94.59 (49.48, 115.87) | 90.94 (51.77, 126.70) | 0.015 |
Dose of RAI (mCi) | 9.48 ± 3.08 | 8.52 ± 2.78 | 0.007 |