Tyroxine - 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 Tyroxine - 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
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

© 2018 - 2019 This website and its content is copyright of EFLM. All rights reserved. Any redistribution or reproduction of part or all of the contents in any form is prohibited other than the following: you may print or download to a local hard disk extracts for your personal and non-commercial use only you may copy the content to individual third parties for their personal use, but only if you acknowledge the website as the source of the material You may not, except with our express written permission, distribute or commercially exploit the content. Nor may you transmit it or store it in any other website or other form of electronic retrieval system.
European Federation of Clinical Chemistry and Laboratory Medicine
Ms Silvia Cattaneo
Via Carlo Farini 81
20159 Milano - Italy
biologicalvariationdatabase@eflm.eu