Table 1 Comparison of thyroid function between patients of breast benign lesions and cancer on initial diagnosis (mean ± SD)

T₃ (ng/ml)

1.22±0.23^*

1.16±0.25

0.002

T₄ (μg/dl)

7.12±1.22^*

7.34±1.36

0.050

FT₃ (pg/ml)

2.92±0.43

2.87±0.38

0.149

FT₄ (ng/dl)

0.89±0.13

0.89±0.18

0.650

TSH (μIU/ml)

3.16±4.92

3.92±8.40

0.187

Clinicopathological features of breast cancer

Number

Tumor size

T0 (impalpable)

11

T1 (≤2 cm)

84

T2 (>2 cm, ≤5 cm)

105

T3 (>5 cm)

19

Unknown

5

Tumor grade

I

11

II

188

III

19

Unknown

6

Clinical stage

0

9

I

63

II

132

III

11

IV

4

Unknown

5