Haemoglobin A1c (HbA1c)

Included in meta analysis


Lenters-Westra E, Roraas T, Schidhelm RK, Sligerland RJ and Sandberg S , 2014, Clin Chem, 60, 1570-2 , Biological variation of hemoglobin A1c: consequences for diagnosing diabetes mellitus.

Originally from this reference: Clin Chem, Lenters-Westra E, Roraas T, Schidhelm RK, Sligerland RJ and Sandberg S , 2014

ID: 0253


Total Score


Parameter Score
1. Scale A
2. Study Population B
3. Samples B
4. Measurand A
5. Pre-Analytical B
6. Replicate Analysis A
7. Steady State B
8. Outlier Analysis B
9. Normality B
10. Variance Homogeneity A
12. CI A
13. No of Results A
14. Concentrations A
15. Total Score B2,3,5,7,8,9
Comment no age, no sampling time

Item Details

Parameter Score
Matrix Whole Blood EDTA
Measurand Haemoglobin A1c (HbA1c)
Unit mmol / mol
Overall Analytical Principle Method Spectrophotometry; UV/VISIBLE
Number of Subjects 21
Number of Subjects included in BV estimation 19
Ethinicity Unknown
Age Mean / Median
Age Min
Age Max
Age SD
Number of Males 11
Number of Females 10
State of Well Being Healthy (excl pregnant)
Study Duration Length 2
Study Duration Units Month
Sampling Intervals, e.g. X sample(s) per Interval Unit
Interval Units Month
Sampling Times Start Time:
End Time:
Number of Samples 5
Average Number of Samples Used for BV Estimation 5.0
Average Number of Replicates 2.0
Estimates of CVi 1.3
Calculated Confidence Intervals of CVi Lower: 1.09, Upper: 1.58
Estimates of CVg 7.5
Calculated Confidence Intervals of CVg Lower: 5.69, Upper: 10.97
Analytical CV 0.7
Calculated Confidence Intervals of Analytical CV Lower: 0.61, Upper: 0.82
Measurand Mean 32.5
Measurand Min
Measurand Max
Measurand SD


Parameter Score
Healthy Population true
Adult Population false
Weekly Samplings false
Reviewed true
Published false
Gender for Meta-Analysis Mixed
Snomed CT
© 2018 - 2019 This website and its content is copyright of EFLM. All rights reserved. Any redistribution or reproduction of part or all of the contents in any form is prohibited other than the following: you may print or download to a local hard disk extracts for your personal and non-commercial use only you may copy the content to individual third parties for their personal use, but only if you acknowledge the website as the source of the material You may not, except with our express written permission, distribute or commercially exploit the content. Nor may you transmit it or store it in any other website or other form of electronic retrieval system.
European Federation of Clinical Chemistry and Laboratory Medicine
Ms Silvia Cattaneo
Via Carlo Farini 81
20159 Milano - Italy