Haemoglobin A1c (NGSP)


Kolatkar NS, Cembrowski GS, Callahan PL and Etzwiler DD, 1994, Clin Chem, 40, 1608-9 , Intensive diabetes management requires very precise testing of glycohemoglobin


Total Score


Parameter Score
1. Scale B
2. Study Population C
3. Samples C
4. Measurand C
5. Pre-Analytical C
6. Replicate Analysis B
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 C2,3,4,5,7,8,10,11,12,13

Item Details

Parameter Score
Matrix Unknown
Measurand Haemoglobin A1c (NGSP)
Unit % / _
Overall Analytical Principle Method Chromatography; HPLC
Number of Subjects 29
Number of Subjects included in BV estimation 29
Ethinicity Unknown
Age Mean / Median
Age Min
Age Max
Age SD
Number of Males
Number of Females
State of Well Being
Non-healthy (excl pregnant)
Study Duration Length 19
Study Duration Units Month
Sampling Intervals, e.g. X sample(s) per Interval Unit 1
Interval Units Day
Sampling Times Start Time:
End Time:
Number of Samples
Average Number of Samples Used for BV Estimation
Average Number of Replicates
Estimates of CVi 4.1
Calculated Confidence Intervals of CVi Lower: 0.00, Upper: 137.58
Estimates of CVg
Calculated Confidence Intervals of CVg Lower: 0.00, Upper:
Analytical CV 1.4
Calculated Confidence Intervals of Analytical CV Lower: 0.73, Upper: 8.80
Measurand Mean
Measurand Min
Measurand Max
Measurand SD