Table 4.

Comparison of our TSH reference intervals to previously published reference intervals (2.5, 50 and 97.5%) of different age groups.

		Soldin et al., 1995 Abbott IMx®	Zurakowski et al., 1999 DELFIA®	Elmlinger et al., 2001 Immulite®	Djemli et al., 2004 Access 2®	Hübner et al., 2002 Advia Centaur®	Kapelari et al., Advia Centaur®
	Age
TSH		[mU/L]	[mU/L]	[mU/L]	[mU/L]	[mU/L]	[mU/L]
		n = 533	n = 5,558	n = 762	n = 706	n = 460	n = 1,209
	1 d – 7 d	F: 0.72 – 13.1	n.d.	1.79 – 4.63 – 9.69	F: 1.5 – 3.3 – 6.5	0.13 – 9.23 a	0.75 – 3.50 – 16.89
	8 d–15 d	M: 0.52 – 16.0	n.d.	1.80 – 3.71 – 7.97	M: 0.7 – 2.4 – 9.8	0.16 – 8.48 b
	15 d – 1 m		n.d.	n.d.
	1 – 12 m		0.8 – 2.2 – 6.3		F: 1.0 – 2.4 – 5.7	0.3 – 1.73 – 5.88 c	1.30 – 2.85 – 7.09
	1 – 2 y			0.63 – 2.04 – 4.12	M: 0.7 – 2.1 – 5.9
	2 – 3 y	F: 0.46 – 8.1	F: 0.7 – 2.0 – 5.9		n.d.	0.42 – 1.98 – 4.79	1.00 – 2.70 – 5.42
	3 – 4 y	M: 0.55 – 7.1	M: 0.7 – 2.1 – 6.0		n.d.
	4 – 5 y			0.53 – 1.60 – 2.94	n.d.
	5 – 6 y	F: 0.36 – 5.8			n.d.
	7 – 8	M: 0.37 – 6.0	F: 0.6 – 1.8 – 5.1	0.80 – 1.86 – 3.48	n.d.	0.48 – 1.87 – 4.67	0.90 – 2.30 – 4.40
	9 – 10		M: 0.7 – 1.9 – 5.4	0.85 – 2.00 – 3.50	F: 0.9 – 2.0 – 4.0
					M: 1.0 – 1.9 – 3.7
	11			0.85 – 1.90 – 3.33
	12		F: 0.5 – 1.5 – 4.4	0.86 – 1.90 – 3.21	F: 0.7 – 1.7 – 3.4	0.53 – 1.78 – 4.58	0.90 – 2.10 – 4.10
	13		M: 0.6 – 1.7 – 4.9	0.80 – 1.81 – 3.08	M: 0.8 – 1.8 – 3.9
	14			0.76 – 1.70 – 2.83
	15			0.70 – 1.56 – 2.55
	16			0.64 – 1.54 – 2.51	F: 0.6 – 1.5 – 3.7	0.56 – 2.00 – 4.53	0.70 – 1.70 – 3.93
	17		F: 0.5 – 1.3 – 3.9	0.62 – 1.51 – 2.42	M: 0.7 – 1.4 – 2.8
	18 – 19		M: 0.5 – 1.6 – 4.4	0.52 – 1.36 – 2.36	n.d.

^a 1 d – 3 d

^b 4 d – 30 d

^c 61 d – 12 m