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

Prostate specific antigen (PSA) - Percent free

Reference

Christensson A, Bruun L, Björk T et al, 2011, BJU Int, 107, 1769-74 , Intra-individual short-term variability of prostate-specific antigen and other kallikrein markers in a serial collection of blood from men under evaluation for prostate càncer

Originally from this reference: BJU Int, Christensson A, Bruun L, Björk T et al, 2011

ID: 0353

Scoring

Total Score

C_{6,7,8,10,11,12,13}

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

Item Details

Parameter	Score
Matrix	Serum
Measurand	Prostate specific antigen (PSA) - Percent free
Unit	% / %
Overall Analytical Principle Method	Immunoassay; Time-resolved immunofluorometric assay (TR-IMFA)
Number of Subjects	149
Number of Subjects included in BV estimation	149
Ethinicity	Unknown
Age Mean / Median	65.0
Age Min	60.0
Age Max	70.0
Age SD
Number of Males	149
Number of Females	0
State of Well Being	Non-healthy (excl pregnant)
Study Duration Length	1
Study Duration Units	Day
Sampling Intervals, e.g. X sample(s) per Interval Unit	7
Interval Units	Hour
Sampling Times	Start Time: End Time:
Number of Samples	2
Average Number of Samples Used for BV Estimation
Average Number of Replicates	1.0
Estimates of CVi	10.3
Calculated Confidence Intervals of CVi	Lower: , Upper:
Estimates of CVg
Calculated Confidence Intervals of CVg	Lower: , Upper:
Analytical CV
Calculated Confidence Intervals of Analytical CV	Lower: , Upper:
Measurand Mean	16.0
Measurand Min	12.5
Measurand Max	20.5
Measurand SD

Coding

Parameter	Score
Healthy Population	false
Adult Population	true
Weekly Samplings	false
Reviewed	true
Published	true
Gender for Meta-Analysis	Males
Snomed CT
NPU
LOINC
Comment

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