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Table 1 Comparison of TSH reference levels from the literature

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

Author Year n Population Age in years TSH levels
De Rosa [6] 1996 259 12 – 82 0.3 – 3.32
Taimela [7] 1997 262 23 – 69 0.6 – 4.3
Bjoro [8] 2000 19327 f 9754 m 20–80 0.49 – 5.70 f 0.56 – 4.60 m
Steinmetz [9] 2000 1348 45–70 0.43 – 3.71
Hollowell [10] 2002 13344 12 – 80 0,45 – 4,12
Hubl [11] 2002 1030 18 – 90 0.19 – 4.25
Hübner [12] 2002 43 15–18 (study subgroup) 0.56 – 4.53
Gonzalez-Sagrado [13] 2004 304 12–94 0.51 – 5.95
Jensen [14] 2004 1512 17 – 66 0.58 – 4.07
D'Herbomez [15] 2005 710 18 – 65 0.35 – 3.48
Kratzsch [16] 2005 870 18 – 68 0.3 – 3.63
Moncayo [17] 2005 14981 20–89 0.3 – 3.5
Völzke [18] 2005 1488 20–79 0.25 – 2.12
Zöphel [19] 2005 1442 Unkown 0.3 – 3.35
Dhatt [20] 2006 959 16 – 75 0.3 – 4.32
O'Leary [21] 2006 2026 29 – 70 0.4 – 4.0
Total number of observations   69659