25-hydroxy vitamin D3


Meng JE, Hovey KM, Wactawski-Wende J, Adrews CA, LaMonte MJ, Horst RL, Genco RJ, Millen AE, 2012, Cancer Epidemiol Biomarkers Prev, 21(6), 916-924 , Intraindividual Variation in Plasma 25-Hydroxyvitamin D Measures 5 Years Apart among Postmenopausal Women


Total Score


Parameter Score
1. Scale A
2. Study Population D
3. Samples NA
4. Measurand NA
5. Pre-Analytical NA
6. Replicate Analysis NA
7. Steady State NA
8. Outlier Analysis NA
9. Normality NA
10. Variance Homogeneity NA
12. CI NA
13. No of Results NA
14. Concentrations NA
15. Total Score D2
Comment no information about health status of subjects is provided

Item Details

Parameter Score
Matrix Plasma
Measurand 25-hydroxy vitamin D3
Unit nmol / L
Overall Analytical Principle Method Chemiluminescence
Number of Subjects 672
Number of Subjects included in BV estimation 672
Ethinicity Caucasian
Age Mean / Median 66.0
Age Min
Age Max
Age SD 7.0
Number of Males 0
Number of Females 672
State of Well Being
Healthy (excl pregnant)
Study Duration Length 8
Study Duration Units Year
Sampling Intervals, e.g. X sample(s) per Interval Unit 8
Interval Units Year
Sampling Times Start Time:
End Time:
Number of Samples 2
Average Number of Samples Used for BV Estimation 2.0
Average Number of Replicates 2.0
Estimates of CVi 25.0
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
Measurand Min
Measurand Max
Measurand SD