Table 1 Clinical characteristics in the two patient groups with suppressed TSH levels (I) and normal TSH levels (II)

No of patients (male)

207 (35)

43 (8)

ns

Age (years)

53 ± 16

61 ± 17

< 0.01

Follow-up time (day)

2914 ± 1649

3406 ± 1563

ns

LT₄ dose (μg/day)

125 (100–150)

125 (100–137.5)

ns*

TSH (μIU/mL)

0.027 (0.009–0.095)

1.190 (0.909–2.395)

< 0.001*

FT₄ (ng/dL)

1.91 (1.67–2.16)

1.63 (1.46–1.80)

< 0.001

FT₃ (pg/mL)

3.10 (2.74–3.45)

2.64 (2.31–2.82)

< 0.001