EFLM Biological Varation Database : BIVAC Minimum Data Set for Prostate specific antigen (PSA)

Prostate specific antigen (PSA) - Conjugated

Reference

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

Scoring

Total Score

C_7,8,10,13

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
11. ANOVA	B
12. CI	A
13. No of Results	C
14. Concentrations	B
15. Total Score	C_7,8,10,13
Comment

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

Coding

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