Cystatin C


Carter JL, Parker CT, Stevens PE, Eaglestone G, Knight S, Farmer CT and Lamb EJ, 2016, Clin Chem, 62, 876-83 , Biological variation of plasma and unrinary markers of acute kidney injury in patients with chronic kidney disease


Total Score


Parameter Score
1. Scale A
2. Study Population A
3. Samples A
4. Measurand A
5. Pre-Analytical A
6. Replicate Analysis A
7. Steady State B
8. Outlier Analysis A
9. Normality A
10. Variance Homogeneity A
12. CI A
13. No of Results B
14. Concentrations A
15. Total Score B7,13

Item Details

Parameter Score
Matrix Plasma
Measurand Cystatin C
Unit mg / L
Overall Analytical Principle Method Enzymatic analysis - Not specified
Number of Subjects 80
Number of Subjects included in BV estimation 80
Ethinicity Unknown
Age Mean / Median 67.9
Age Min 33.8
Age Max 89.1
Age SD
Number of Males 47
Number of Females 33
State of Well Being
Non-healthy (excl pregnant)
Study Duration Length 6
Study Duration Units Week
Sampling Intervals, e.g. X sample(s) per Interval Unit 1
Interval Units Week
Sampling Times Start Time: unknown
End Time:
Number of Samples 6
Average Number of Samples Used for BV Estimation 6.0
Average Number of Replicates 2.0
Estimates of CVi 4.8
Calculated Confidence Intervals of CVi Lower: 4.48, Upper: 5.16
Estimates of CVg 49.9
Calculated Confidence Intervals of CVg Lower: 43.21, Upper: 59.05
Analytical CV 0.9
Calculated Confidence Intervals of Analytical CV Lower: 0.85, Upper: 0.96
Measurand Mean 0.76
Measurand Min
Measurand Max
Measurand SD