Table 3: Test-retest reliability measures of TSH, FT4, FT3, SPINA-GT, and SPINA-GD from repeated measurements with at least one month interval in 20 healthy volunteers from the SPINA network [11, 116]. : repeatability = (interindividual variance)/(intraindividual variance + interindividual variance) [300]. Larger figures denote higher reliability.

Parameter

TSH0.630.16
FT40.710.35**
FT30.680.36**
SPINA-GT0.730.42**
SPINA-GD0.640.36**

** < 0.01.