EFLM Biological Varation Database : BIVAC Minimum Data Set for Dihydroxytestosterone (DHT) EFLM Biological Variation

Dihydroxytestosterone (DHT)

Reference

Sartorius G, Spasevska S, Idan A et al, 2012, Clin Endocrinol, 77, 755-63 , Serum testosterone, dihydrotestosterone and estradiol concentrations in older men self-reporting very good health: the healthy man study

Originally from this reference: Clin Endocrinol, Sartorius G, Spasevska S, Idan A et al, 2012

ID: 0410

Scoring

Total Score

C_8,10,13

Parameter	Score
1. Scale	A
2. Study Population	A
3. Samples	A
4. Measurand	A
5. Pre-Analytical	A
6. Replicate Analysis	B
7. Steady State	B
8. Outlier Analysis	C
9. Normality	B
10. Variance Homogeneity	C
11. ANOVA	A
12. CI	A
13. No of Results	C
14. Concentrations	A
15. Total Score	C_8,10,13
Comment

Item Details

Parameter	Score
Matrix	Serum
Measurand	Dihydroxytestosterone (DHT)
Unit	nmol / L
Overall Analytical Principle Method	Immunoassay; Not specified
Number of Subjects	325
Number of Subjects included in BV estimation	325
Ethinicity	Caucasian
Age Mean / Median	60.0
Age Min	40.0
Age Max	97.0
Age SD
Number of Males	325
Number of Females
State of Well Being	Healthy (excl pregnant)
Study Duration Length	3
Study Duration Units	Month
Sampling Intervals, e.g. X sample(s) per Interval Unit
Interval Units	Week
Sampling Times	Start Time: 09:00 End Time: 11:00
Number of Samples	9
Average Number of Samples Used for BV Estimation	9.0
Average Number of Replicates	1.0
Estimates of CVi	15.9
Calculated Confidence Intervals of CVi	Lower: , Upper:
Estimates of CVg
Calculated Confidence Intervals of CVg	Lower: 0.00, Upper:
Analytical CV
Calculated Confidence Intervals of Analytical CV	Lower: , Upper:
Measurand Mean	1.5
Measurand Min	0.23
Measurand Max	7.3
Measurand SD

Coding

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

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