Cystatin C


Reinhard M, Erlandsen EJ and Randers E, 2009, Scand J Clin Lab Invest, 69, 831-6 , Biological variation of cystatin C and creatinine


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 C
8. Outlier Analysis B
9. Normality B
10. Variance Homogeneity C
12. CI A
13. No of Results B
14. Concentrations A
15. Total Score C7,10

Item Details

Parameter Score
Matrix Serum
Measurand Cystatin C
Unit mg / L
Overall Analytical Principle Method Turbidimetry
Number of Subjects 19
Number of Subjects included in BV estimation 19
Ethinicity Unknown
Age Mean / Median 61.0
Age Min 35.0
Age Max 70.0
Age SD
Number of Males 11
Number of Females 8
State of Well Being
Non-healthy (excl pregnant)
Study Duration Length 56
Study Duration Units Day
Sampling Intervals, e.g. X sample(s) per Interval Unit 1
Interval Units Week
Sampling Times Start Time: 07:00
End Time: 10:00
Number of Samples 8
Average Number of Samples Used for BV Estimation 8.0
Average Number of Replicates 2.0
Estimates of CVi 16.0
Calculated Confidence Intervals of CVi Lower: 14.28, Upper: 18.20
Estimates of CVg
Calculated Confidence Intervals of CVg Lower: 0.00, Upper:
Analytical CV 1.8
Calculated Confidence Intervals of Analytical CV Lower: 1.62, Upper: 2.03
Measurand Mean 1.86
Measurand Min
Measurand Max
Measurand SD