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Table 5 Comparison of our fT3 reference intervals to previously published reference intervals (2.5, 50 and 97.5%) of different age groups.
| Soldin et al., 1995 Abbott IMx® | Elmlinger et al., 2001 Immulite® | Hübner et al., 2002 Advia Centaur® | Kapelari et al., Advia Centaur® | ||
|---|---|---|---|---|---|
| Age | |||||
| fT3 | [pmol/L] | [pmol/L] | [pmol/L] | [pmol/L] | |
| n = 1,069 | n = 762 | n = 460 | n = 1,295 | ||
| 1 d – 7 d | 2.2 – 7.4 | 2.76 – 6.91 – 11.67 | 2.32 – 8.11 a | F: 5.00 – 6.60 – 7.50 | |
| 8 – 15 d | 2.2 – 8.4 | 2.84 – 5.53 – 11.86 | 2.40 – 7.94 b | M: 4.60 – 6.30 – 10.10 | |
| 15 d – 1 m | n.d. | ||||
| 1 – 12 m | 3.1 – 10.6 | 2.72 – 5.27 – 7.30 c | F: 4.30 – 6.15 – 7.60 | ||
| M: 4.30 – 6.20 – 7.50 | |||||
| 1 – 2 y | 3.28 – 6.08 – 11.06 | 3.05 – 5.63 – 6.93 | F: 4.45 – 6.15 – 7.46 | ||
| 2 – 3 y | M: 4.70 – 6.30 – 7.84 | ||||
| 3 – 4 y | 3.7 – 10.3 | ||||
| 4 – 5 y | 3.43 – 6.57 – 10.97 | ||||
| 5 – 6 y | F: 4.60 – 6.20 – 7.30 | ||||
| 7 – 8 | 4.4 – 9.2 | 3.58 – 6.71 – 10.75 | 3.30 – 5.58 – 6.79 | M: 4.80 – 6.10 – 7.20 | |
| 9 – 10 | 3.72 – 6.44 – 10.87 | ||||
| 11 | 3.76 – 6.13 – 9.98 | ||||
| 12 | 3.76 – 5.88 – 8.86 | 3.46 – 5.54 – 6.7 | F: 4.41 – 5.90 – 7.00 | ||
| 13 | 4.8 – 9.1 | 3.84 – 5.64 – 8.03 | M: 4.90 – 6.00 – 7.00 | ||
| 14 | 3.81 – 5.45 – 7.28 | ||||
| 15 | 3.69 – 5.16 – 6.87 | ||||
| 16 | 3.61 – 4.98 – 6.88 | 3.57 – 5.33 – 6.65 | F: 4.08 – 5.30 – 6.80 | ||
| 17 | 5.4 – 8.8 | 3.54 – 4.76 – 6.60 | M: 4.60 – 5.80 – 7.10 | ||
| 18 – 19 | 3.52 – 4.65 – 6.30 |
