Included in meta analysis


Helander A, Vabö E, Levin K, Borg S, 1998, Clin Chem, 44, 2120-25 , Intra-and interindividual variability of carbohydrate-deficient transferrin, G-glutamyltransferase, and mean corpuscular volume in teetotalers


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 C
8. Outlier Analysis C
9. Normality B
10. Variance Homogeneity C
12. CI C
13. No of Results C
14. Concentrations B
15. Total Score C6,7,8,10,12,13

Item Details

Parameter Score
Matrix Serum
Measurand Transferrin
Unit g / L
Overall Analytical Principle Method Unknown
Number of Subjects 15
Number of Subjects included in BV estimation 14
Ethinicity Unknown
Age Mean / Median 42.0
Age Min 19.0
Age Max 69.0
Age SD
Number of Males 5
Number of Females 10
State of Well Being
Healthy (excl pregnant)
Study Duration Length 5
Study Duration Units Month
Sampling Intervals, e.g. X sample(s) per Interval Unit 1
Interval Units Month
Sampling Times Start Time: unknown
End Time: unknown
Number of Samples 5
Average Number of Samples Used for BV Estimation 5.0
Average Number of Replicates 1.0
Estimates of CVi 3.2
Calculated Confidence Intervals of CVi Lower: , Upper:
Estimates of CVg 11.4
Calculated Confidence Intervals of CVg Lower: , Upper:
Analytical CV
Calculated Confidence Intervals of Analytical CV Lower: , Upper:
Measurand Mean 4.2
Measurand Min
Measurand Max
Measurand SD