EFLM Biological Varation Database : BIVAC Minimum Data Set for Haematocrit (Hct) EFLM Biological Variation

Haematocrit (Hct)

Reference

Borel MJ, Smith SM, Derr J, Beard JL., 1991, Am J Clin Nutr, 54, 729-35 , Day-to-day variation in iron-status indices in healthy men and women

Originally from this reference: Am J Clin Nutr, Borel MJ, Smith SM, Derr J, Beard JL., 1991

ID: 0009

Scoring

Total Score

C_7,10,13

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	C
8. Outlier Analysis	B
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_7,10,13
Comment

Item Details

Parameter	Score
Matrix	Whole Blood EDTA
Measurand	Haematocrit (Hct)
Unit	% / _
Overall Analytical Principle Method	Spectrophotometry; UV/VISIBLE
Number of Subjects	20
Number of Subjects included in BV estimation	20
Ethinicity	Unknown
Age Mean / Median
Age Min	21.0
Age Max	42.0
Age SD
Number of Males	10
Number of Females	10
State of Well Being	Healthy (excl pregnant)
Study Duration Length	31
Study Duration Units	Day
Sampling Intervals, e.g. X sample(s) per Interval Unit	1
Interval Units	Day
Sampling Times	Start Time: 07.30 End Time: 12.00
Number of Samples	31
Average Number of Samples Used for BV Estimation	30.2
Average Number of Replicates	1.0
Estimates of CVi	2.8
Calculated Confidence Intervals of CVi	Lower: 2.55, Upper: 3.03
Estimates of CVg
Calculated Confidence Intervals of CVg	Lower: 0.00, Upper:
Analytical CV	1.4
Calculated Confidence Intervals of Analytical CV	Lower: 1.19, Upper: 1.70
Measurand Mean	44.5
Measurand Min
Measurand Max
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	Capillary blood

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