Calcium (Ca)

Reference

Reference
Gardham C, Stevens PE, Delaney MP, LeRoux M, Coleman A and Lamb E, 2010, CliniJ Am Soc Nephrol, 5, 1261-7 , Variability of Parathyroid hormone ond other markers of bone mineral metabolism in patients receiving hemodialysis

Scoring

Total Score

C10

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 A
8. Outlier Analysis A
9. Normality B
10. Variance Homogeneity C
11. ANOVA A
12. CI A
13. No of Results A
14. Concentrations A
15. Total Score C10
Comment

Item Details

Parameter Score
Matrix Serum
Measurand Calcium (Ca)
Unit mmol / L
Overall Analytical Principle Method Spectrophotometry; Not specified
Number of Subjects 22
Number of Subjects included in BV estimation 19
Ethinicity Unknown
Age Mean / Median 67.7
Age Min 42.0
Age Max 90.0
Age SD 12.3
Number of Males 11
Number of Females 11
State of Well Being
Non-healthy (excl pregnant)
Diseases
Study Duration Length 6
Study Duration Units Week
Sampling Intervals, e.g. X sample(s) per Interval Unit 2
Interval Units Week
Sampling Times Start Time: 08:00
End Time: 10:00
Number of Samples 12
Average Number of Samples Used for BV Estimation 12.0
Average Number of Replicates 2.0
Estimates of CVi 2.9
Calculated Confidence Intervals of CVi Lower: 2.64, Upper: 3.21
Estimates of CVg
Calculated Confidence Intervals of CVg Lower: , Upper:
Analytical CV 0.62
Calculated Confidence Intervals of Analytical CV Lower: 0.57, Upper: 0.68
Measurand Mean 2.29
Measurand Min
Measurand Max
Measurand SD 0.14

Coding