Prostate specific antigen (PSA) - Conjugated


Bunting PS, DeBoer G, Choo R et al, 2002, Clin Biochem, 35, 471-5 , Intraindividual variation of PSA, free PSA and complexed PSA in a cohort of patients with prostate cancer managed with watchful observation


Total Score


Parameter Score
1. Scale A
2. Study Population A
3. Samples B
4. Measurand B
5. Pre-Analytical B
6. Replicate Analysis B
7. Steady State C
8. Outlier Analysis C
9. Normality B
10. Variance Homogeneity C
12. CI A
13. No of Results C
14. Concentrations B
15. Total Score C7,8,10,13

Item Details

Parameter Score
Matrix Serum
Measurand Prostate specific antigen (PSA) - Conjugated
Unit ug / L
Overall Analytical Principle Method Chemiluminescence
Number of Subjects 76
Number of Subjects included in BV estimation 76
Ethinicity Unknown
Age Mean / Median
Age Min
Age Max
Age SD
Number of Males 76
Number of Females 0
State of Well Being
Non-healthy (excl pregnant)
Study Duration Length 2.7
Study Duration Units Year
Sampling Intervals, e.g. X sample(s) per Interval Unit
Interval Units Other
Sampling Times Start Time:
End Time:
Number of Samples 2
Average Number of Samples Used for BV Estimation 2.0
Average Number of Replicates 1.0
Estimates of CVi 20.0
Calculated Confidence Intervals of CVi Lower: 16.49, Upper: 24.22
Estimates of CVg
Calculated Confidence Intervals of CVg Lower: , Upper:
Analytical CV 7.2
Calculated Confidence Intervals of Analytical CV Lower: 5.32, Upper: 11.14
Measurand Mean
Measurand Min
Measurand Max
Measurand SD