Urea

Reference

Reference
Winkel P and Statland BE, 1976, Clin Chem, 22, 1855-61 , Correlation of selected serum constituents:2. Consistency of intra-individual correlation values, means and variances during four months

Originally from this reference: Clin Chem, Winkel P and Statland BE, 1976


ID: 0276

Scoring

Total Score

C8,10,12,13

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 C
13. No of Results C
14. Concentrations A
15. Total Score C8,10,12,13
Comment

Item Details

Parameter Score
Matrix Serum
Measurand Urea
Unit mmol / L
Overall Analytical Principle Method Spectrophotometry; UV/VISIBLE
Number of Subjects 10
Number of Subjects included in BV estimation 10
Ethinicity Caucasian
Age Mean / Median
Age Min 21.0
Age Max 31.0
Age SD
Number of Males
Number of Females 10
State of Well Being Healthy (excl pregnant)
Study Duration Length 4
Study Duration Units Month
Sampling Intervals, e.g. X sample(s) per Interval Unit 2
Interval Units Month
Sampling Times Start Time: 07:30
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 5.0
Calculated Confidence Intervals of CVi Lower: , Upper:
Estimates of CVg
Calculated Confidence Intervals of CVg Lower: 0.00, Upper:
Analytical CV
Calculated Confidence Intervals of Analytical CV Lower: , Upper:
Measurand Mean 4.33
Measurand Min
Measurand Max
Measurand SD

Coding

Parameter Score
Healthy Population true
Adult Population true
Weekly Samplings true
Reviewed true
Published true
Gender for Meta-Analysis Females
Snomed CT
NPU
LOINC
Comment obsolete method, Karmen units