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Table 2 Categorized results according to 4 classification criteria for normal: 1) basal TSH according to Innsbruck criteria (I-TSH), 2) TRH stimulated TSH levels (s-TSH), 3) basal TSH according to Zöphel (Z-TSH), 4) basal TSH according to Baloch (B-TSH). The figures in the table correspond to the percentage of cases from the total that fall within a specific category.

From: Diagnostic accuracy of basal TSH determinations based on the intravenous TRH stimulation test: An evaluation of 2570 tests and comparison with the literature

I-TSH

%

s-TSH

%

Z-TSH

%

B-TSH

%

< 0.3

3,81

< 2,5

3,35

< 0.3

3,81

< 0.3

3,81

0.3 – 3.5

91,52

< 19,9

82,37

0.3 – 3.35

90,66

0.3 – 2.5

83,77

> 3.5

4,67

>= 20

14,28

> 3.35

5,53

> 2.5

12,41