Urea

Reference

Reference
Qi Z, Chen Y, Zhang L, Ma X, Wang F, Cheng Q, Du J, Hao Y, Chi S, Cui W, 2016, Clin Chim Acta, 452, 87-91 , Biological variations of thirteen plasma biochemical indicators

Scoring

Total Score

C8,10,13

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

Item Details

Parameter Score
Matrix Plasma
Measurand Urea
Unit mmol / L
Overall Analytical Principle Method Unknown
Number of Subjects 19
Number of Subjects included in BV estimation 19
Ethinicity Asian
Age Mean / Median
Age Min 21.0
Age Max 68.0
Age SD
Number of Males
Number of Females 19
State of Well Being
Healthy (excl pregnant)
Diseases
Study Duration Length 5
Study Duration Units Day
Sampling Intervals, e.g. X sample(s) per Interval Unit 1
Interval Units Day
Sampling Times Start Time: 8:00
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 8.3
Calculated Confidence Intervals of CVi Lower: 7.12, Upper: 9.91
Estimates of CVg 11.2
Calculated Confidence Intervals of CVg Lower: 8.13, Upper: 16.84
Analytical CV 2.1
Calculated Confidence Intervals of Analytical CV Lower: 1.84, Upper: 2.45
Measurand Mean 3.83
Measurand Min
Measurand Max
Measurand SD

Coding