Cancer antigen 72-4 (CA 72-4)


Qi Z, Zhang Lin, Chen Y, Ma X et al, 2015, Clin Chim Acta, 450, 233-6 , . Biological variations of seven tumor markers


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 C
9. Normality A
10. Variance Homogeneity C
12. CI A
13. No of Results B
14. Concentrations B
15. Total Score C8,10

Item Details

Parameter Score
Matrix Serum
Measurand Cancer antigen 72-4 (CA 72-4)
Unit U / mL
Overall Analytical Principle Method Immunoassay; Not specified
Number of Subjects 20
Number of Subjects included in BV estimation 7
Ethinicity Asian
Age Mean / Median 26.0
Age Min 21.0
Age Max 38.0
Age SD
Number of Males 11
Number of Females 9
State of Well Being
Healthy (excl pregnant)
Study Duration Length 5
Study Duration Units Day
Sampling Intervals, e.g. X sample(s) per Interval Unit
Interval Units Hour
Sampling Times Start Time: 08:00
End Time: 16:00
Number of Samples 7
Average Number of Samples Used for BV Estimation 7.0
Average Number of Replicates 2.0
Estimates of CVi 16.06
Calculated Confidence Intervals of CVi Lower: 13.14, Upper: 20.53
Estimates of CVg 95.95
Calculated Confidence Intervals of CVg Lower: 63.27, Upper: 195.59
Analytical CV 4.03
Calculated Confidence Intervals of Analytical CV Lower: 3.37, Upper: 5.02
Measurand Mean
Measurand Min 0.8
Measurand Max 9.6
Measurand SD