Lacher DA, Hughes JP and Carroll MD, 2010, National Health Statistics Reports , 21, , Biological variation of laboratory analytes based on the 1999–2002 National Health and Nutrition Examination Survey


Total Score


Parameter Score
1. Scale A
2. Study Population B
3. Samples A
4. Measurand A
5. Pre-Analytical C
6. Replicate Analysis B
7. Steady State C
8. Outlier Analysis A
9. Normality B
10. Variance Homogeneity C
12. CI A
13. No of Results A
14. Concentrations A
15. Total Score C5,7,10

Item Details

Parameter Score
Matrix Plasma
Measurand Triglycerides
Unit mg / dL
Overall Analytical Principle Method Spectrophotometry; Enzymatic
Number of Subjects 814
Number of Subjects included in BV estimation 814
Ethinicity Hispanic or Latino
Age Mean / Median
Age Min 16.0
Age Max 69.0
Age SD
Number of Males
Number of Females
State of Well Being
Healthy (excl pregnant)
Study Duration Length 36
Study Duration Units Month
Sampling Intervals, e.g. X sample(s) per Interval Unit 1
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 27.8
Calculated Confidence Intervals of CVi Lower: 26.51, Upper: 29.23
Estimates of CVg
Calculated Confidence Intervals of CVg Lower: , Upper:
Analytical CV 1.9
Calculated Confidence Intervals of Analytical CV Lower: 1.71, Upper: 2.13
Measurand Mean 125.1
Measurand Min
Measurand Max
Measurand SD