Thyroxine - total (T4)

Reference

Reference
Hölzel WGE, Deschner W. , 1988, Clin Chem, 34, 2063-65 , Intra-individual variation of serum thytoxin and triiodothyronine in pregnancy

Scoring

Total Score

C8

Parameter Score
1. Scale A
2. Study Population A
3. Samples A
4. Measurand A
5. Pre-Analytical A
6. Replicate Analysis A
7. Steady State B
8. Outlier Analysis C
9. Normality A
10. Variance Homogeneity A
11. ANOVA B
12. CI A
13. No of Results A
14. Concentrations A
15. Total Score C8
Comment

Item Details

Parameter Score
Matrix Serum
Measurand Thyroxine - total (T4)
Unit nmol / L
Overall Analytical Principle Method Immunoassay; RIA
Number of Subjects 13
Number of Subjects included in BV estimation 13
Ethinicity Caucasian
Age Mean / Median 25.9
Age Min 19.0
Age Max 40.0
Age SD
Number of Males
Number of Females 13
State of Well Being
Pregnant
Diseases
Study Duration Length 8
Study Duration Units Month
Sampling Intervals, e.g. X sample(s) per Interval Unit 1
Interval Units Month
Sampling Times Start Time:
End Time:
Number of Samples 8
Average Number of Samples Used for BV Estimation 8.0
Average Number of Replicates 3.0
Estimates of CVi 7.3
Calculated Confidence Intervals of CVi Lower: 6.24, Upper: 8.69
Estimates of CVg 12.5
Calculated Confidence Intervals of CVg Lower: 8.85, Upper: 20.43
Analytical CV 4.6
Calculated Confidence Intervals of Analytical CV Lower: 4.20, Upper: 5.09
Measurand Mean 108.0
Measurand Min
Measurand Max
Measurand SD

Coding