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Table 3 Comparison of thyroid function and autoantibody indicators of the patients at 3 months of therapy

From: Enhanced predictive validity of integrative models for refractory hyperthyroidism considering baseline and early therapy characteristics: a prospective cohort study

Characteristics of early therapy

Refractory

(n = 172)

Non-refractory

(n = 174)

P value

fT3 (3 m)a (pmol/L)

6.7 (5.0–9.7)

6.2 (4.7–7.8)

0.037

fT3 (3 m percentage decrease)b (%)

69.7 ± 16.6

70.4 ± 15.7

0.421

fT3 (3 m accumulation)c (day*pmol/L)

1046.4 (823.4–1394.6)

998.1 (751.3–1299.1)

0.126

fT4 (3 m)a (pmol/L)

20.7 (15.2–26.4)

18.6 (14.4–22.1)

0.023

fT4 (3 m percentage decrease)b (%)

68.6 ± 17.8

66.7 ± 16.2

0.435

fT4 (3 m accumulation)c (day*pmol/L)

2710.6 (2019.6–3539.5)

2770.3 (2077.2–3511.8)

0.957

TSH (3 m)a (mIU/L)

1.5 (0.3–4.8)

1.9 (0.4–4.8)

0.093

TSH (3 m percentage increase)b (%)

29,472.0 (4117.1–89,921.0)

36,701.0 (8772.7–102,865.7)

0.157

TSH (3 m accumulation)c (day*mIU/L)

79.4 (7.3–242.2)

63.9 (5.4–208.4)

0.441

TPOAb (3 m)a (IU/mL)

137.1 (39.0–312.5)

84.9 (25.6–201.8)

0.015

TPOAb (3 m percentage decrease)b (%)

19.1 (2.6–33.8)

18.8 (11.4–36.0)

0.994

TPOAb (3 m accumulation)c (day* IU/mL)

15,056.7 (3600.4–29,545.1)

8892.8 (1818.1–22,319.4)

0.009

TgAb (3 m)a (IU/mL)

230.1 (48.1–442.9)

168.5 (19.5–436.7)

0.048

TgAb (3 m percentage decrease)b (%)

38.1 (0.6–58.6)

21.7 (12.0–51.1)

0.003

TgAb (3 m accumulation)c (day* IU/mL)

23,858.0 (4768.6–44,855.1)

19,148.7 (2914.0–45211.9)

0.512

TRAb (3 m)a (IU/L)

6.5 (2.8–12.5)

4.7 (2.5–9.2)

0.045

TRAb (3 m percentage decrease)b (%)

44.8 (25.6–63.2)

36.5 (56.5–17.1)

0.019

TRAb (3 m accumulation)c (day* IU/L)

1081.9 (425.5–1634.8)

605.7 (316.7–1210.5)

< 0.001

  1. fT3 free triiodothyronine, fT4 free thyroxine, TSH thyroid stimulating hormone, TPOAb thyroid peroxidase autoantibody, TgAb thyroglobulin autoantibody, TRAb thyroid stimulating hormone receptor autoantibody, m month
  2. aAbsolute serum levels at 3 months of MMI therapy
  3. bIncrease or decrease percentage of serum levels at 3 months of MMI therapy compared with the serum levels before therapy
  4. cThe area under the fitted curve of 3-month serum levels after the start of MMI therapy (the abscissa is days, the ordinate is the fT3/fT4/TSH/TPOAb/TgAb/TRAb level)