Thyroxine - free (FT4)

Reference

Reference
Oladipo O, Nenninger DA, Parvin Ca and Dietzen DJ, 2010, Clin Chim Acta, 411, 1143-5 , Intraindividual variability of thyroid function tests in a pediatric population

Scoring

Total Score

C5,8,10,13

Parameter Score
1. Scale A
2. Study Population A
3. Samples A
4. Measurand A
5. Pre-Analytical C
6. Replicate Analysis B
7. Steady State B
8. Outlier Analysis C
9. Normality B
10. Variance Homogeneity C
11. ANOVA B
12. CI A
13. No of Results C
14. Concentrations A
15. Total Score C5,8,10,13
Comment

Item Details

Parameter Score
Matrix Serum
Measurand Thyroxine - free (FT4)
Unit pmol / L
Overall Analytical Principle Method Immunoassay; Not specified
Number of Subjects 66
Number of Subjects included in BV estimation 66
Ethinicity Caucasian
Age Mean / Median
Age Min 0.0
Age Max 18.0
Age SD
Number of Males 34
Number of Females 32
State of Well Being
Non-healthy (excl pregnant)
Diseases
Study Duration Length 1
Study Duration Units Year
Sampling Intervals, e.g. X sample(s) per Interval Unit
Interval Units Week
Sampling Times Start Time:
End Time:
Number of Samples 6
Average Number of Samples Used for BV Estimation 6.0
Average Number of Replicates 1.0
Estimates of CVi 9.1
Calculated Confidence Intervals of CVi Lower: 7.87, Upper: 10.14
Estimates of CVg 14.0
Calculated Confidence Intervals of CVg Lower: 11.76, Upper: 17.11
Analytical CV 5.1
Calculated Confidence Intervals of Analytical CV Lower: 4.18, Upper: 6.55
Measurand Mean 18.1
Measurand Min
Measurand Max
Measurand SD

Coding