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

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	Calculated
Number of Subjects	10
Number of Subjects included in BV estimation	10
Ethinicity	Unknown
Age Mean / Median
Age Min
Age Max
Age SD
Number of Males	10
Number of Females	0
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
Average Number of Replicates	1.0
Estimates of CVi	2.7
Calculated Confidence Intervals of CVi	Lower: 2.37, Upper: 3.00
Estimates of CVg
Calculated Confidence Intervals of CVg	Lower: 0.00, Upper:
Analytical CV	1.3
Calculated Confidence Intervals of Analytical CV	Lower: 1.04, Upper: 1.73
Measurand Mean	47.4
Measurand Min
Measurand Max
Measurand SD

Coding

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