Testosterone

Included in meta analysis

Reference

Reference
Ahokoski O, Virtanen A, Huupponene R, Scheinin H, Salminen E, Kairisto V, Irjala K, 1998, Clin Chem Lab Med, 36, 485-91 , Biological day-to-day variation and daytime changes of testosterone, follitropin, lutropin and oestradiol-17β in healthy men

Scoring

Total Score

C4,7,8,10,13

Parameter Score
1. Scale A
2. Study Population A
3. Samples A
4. Measurand C
5. Pre-Analytical A
6. Replicate Analysis B
7. Steady State C
8. Outlier Analysis C
9. Normality A
10. Variance Homogeneity C
11. ANOVA A
12. CI A
13. No of Results C
14. Concentrations B
15. Total Score C4,7,8,10,13
Comment

Item Details

Parameter Score
Matrix Serum
Measurand Testosterone
Unit nmol / L
Overall Analytical Principle Method Unknown
Number of Subjects 8
Number of Subjects included in BV estimation 8
Ethinicity Unknown
Age Mean / Median 23.0
Age Min 20.0
Age Max 34.0
Age SD
Number of Males 8
Number of Females 0
State of Well Being
Healthy (excl pregnant)
Diseases
Study Duration Length 9
Study Duration Units Day
Sampling Intervals, e.g. X sample(s) per Interval Unit 1
Interval Units Day
Sampling Times Start Time: 08.00
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 9.3
Calculated Confidence Intervals of CVi Lower: 0.00, Upper: 13.22
Estimates of CVg 16.5
Calculated Confidence Intervals of CVg Lower: 10.56, Upper: 32.50
Analytical CV 6.9
Calculated Confidence Intervals of Analytical CV Lower: 4.13, Upper: 19.83
Measurand Mean 20.8
Measurand Min
Measurand Max
Measurand SD

Coding