Vitamin E

Included in meta analysis


Olmedilla B, Granado F, Blanco I, Rojas-Hidalgo E, 1994, Am J Clin Nutr, 60, 106-10 , Seasonal and sex-related variations in six serum carotenoids, retinol, and α-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 C
7. Steady State A
8. Outlier Analysis C
9. Normality B
10. Variance Homogeneity C
12. CI C
13. No of Results C
14. Concentrations A
15. Total Score C6,8,10,11,12,13

Item Details

Parameter Score
Matrix Serum
Measurand Vitamin E
Unit micromol / L
Overall Analytical Principle Method Chromatography; HPLC
Number of Subjects 10
Number of Subjects included in BV estimation
Ethinicity Caucasian
Age Mean / Median 38.0
Age Min 25.0
Age Max 59.0
Age SD
Number of Males
Number of Females 10
State of Well Being
Healthy (excl pregnant)
Study Duration Length 12
Study Duration Units Month
Sampling Intervals, e.g. X sample(s) per Interval Unit 3
Interval Units Month
Sampling Times Start Time: 9:00
End Time:
Number of Samples 4
Average Number of Samples Used for BV Estimation
Average Number of Replicates
Estimates of CVi 12.2
Calculated Confidence Intervals of CVi Lower: , Upper:
Estimates of CVg
Calculated Confidence Intervals of CVg Lower: , Upper:
Analytical CV
Calculated Confidence Intervals of Analytical CV Lower: , Upper:
Measurand Mean 34.0
Measurand Min 23.0
Measurand Max 42.0
Measurand SD