Vitamin E

Included in meta analysis


Lux D and Naidoo O, 1994, Redox Report, 1, 45-9 , Biological variation of ascorbic acid and alfa-tocopherol


Total Score


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 A
12. CI C
13. No of Results A
14. Concentrations A
15. Total Score C8,12

Item Details

Parameter Score
Matrix Plasma
Measurand Vitamin E
Unit micromol / L
Overall Analytical Principle Method Chromatography; HPLC
Number of Subjects 12
Number of Subjects included in BV estimation
Ethinicity Caucasian
Age Mean / Median
Age Min 23.0
Age Max 45.0
Age SD
Number of Males 8
Number of Females 4
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 1
Interval Units Month
Sampling Times Start Time: 8:00
End Time: 10:00
Number of Samples 3
Average Number of Samples Used for BV Estimation 3.0
Average Number of Replicates 1.0
Estimates of CVi 18.0
Calculated Confidence Intervals of CVi Lower: 0.00, Upper: 25.67
Estimates of CVg 16.0
Calculated Confidence Intervals of CVg Lower: 6.60, Upper: 30.02
Analytical CV 6.0
Calculated Confidence Intervals of Analytical CV Lower: 3.40, Upper: 22.38
Measurand Mean 31.0
Measurand Min 24.0
Measurand Max 34.0
Measurand SD