Haemoglobin A1c (HbA1c)

Included in meta analysis

Reference

Reference
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.

Scoring

Total Score

C12

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
11. ANOVA A
12. CI C
13. No of Results A
14. Concentrations A
15. Total Score C12
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 1.4
Calculated Confidence Intervals of CVi Lower: 0.90, Upper: 1.89
Estimates of CVg 6.7
Calculated Confidence Intervals of CVg Lower: 5.06, Upper: 9.83
Analytical CV 1.9
Calculated Confidence Intervals of Analytical CV Lower: 1.66, Upper: 2.21
Measurand Mean 32.6
Measurand Min
Measurand Max
Measurand SD

Coding

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