Included in meta analysis


Jayagopal V, Kilpatrick ES, Jennings PE, Hepburn DA and Atkin SL, 2003, J Clin Endocrinol Metab, 88(4), 1528-33 , The Biological Variation of Testosterone and Sex Hormone-Binding Globulin (SHBG) in Polycystic Ovarian Syndrome: Implications for SHBG as a Surrogate Marker of Insulin Resistance


Total Score


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 A
8. Outlier Analysis C
9. Normality A
10. Variance Homogeneity A
12. CI C
13. No of Results C
14. Concentrations A
15. Total Score C8,12,13

Item Details

Parameter Score
Matrix Serum
Measurand Testosterone
Unit nmol / L
Overall Analytical Principle Method Chemiluminescence
Number of Subjects 11
Number of Subjects included in BV estimation
Ethinicity Caucasian
Age Mean / Median 30.0
Age Min 19.0
Age Max 33.0
Age SD
Number of Males
Number of Females 11
State of Well Being
Healthy (excl pregnant)
Study Duration Length 40
Study Duration Units Day
Sampling Intervals, e.g. X sample(s) per Interval Unit 2
Interval Units Week
Sampling Times Start Time: 8
End Time: 9
Number of Samples 10
Average Number of Samples Used for BV Estimation 10.0
Average Number of Replicates 2.0
Estimates of CVi 15.1
Calculated Confidence Intervals of CVi Lower: 13.25, Upper: 17.55
Estimates of CVg 83.4
Calculated Confidence Intervals of CVg Lower: 58.98, Upper: 141.75
Analytical CV 1.5
Calculated Confidence Intervals of Analytical CV Lower: 1.33, Upper: 1.73
Measurand Mean 2.66
Measurand Min 1.79
Measurand Max 3.53
Measurand SD