Calcium (Ca)

Reference

Reference
Beck Jensen et al. , 1997, Scand J Clin Lab Invest, 57, 351-60 , A single measurement of biochemical markers of bone turnover has limited utility in the individual person.

Scoring

Total Score

C8,10,13

Parameter Score
1. Scale A
2. Study Population A
3. Samples A
4. Measurand A
5. Pre-Analytical B
6. Replicate Analysis A
7. Steady State A
8. Outlier Analysis C
9. Normality B
10. Variance Homogeneity C
11. ANOVA B
12. CI A
13. No of Results C
14. Concentrations B
15. Total Score C8,10,13
Comment

Item Details

Parameter Score
Matrix Random Urine
Measurand Calcium (Ca)
Unit mmol / mmol creatinine
Overall Analytical Principle Method Spectrophotometry; Not specified
Number of Subjects 30
Number of Subjects included in BV estimation 30
Ethinicity Unknown
Age Mean / Median
Age Min 24.0
Age Max 62.0
Age SD
Number of Males
Number of Females 30
State of Well Being
Healthy (excl pregnant)
Diseases
Study Duration Length 5
Study Duration Units Week
Sampling Intervals, e.g. X sample(s) per Interval Unit 1
Interval Units Week
Sampling Times Start Time:
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 54.1
Calculated Confidence Intervals of CVi Lower: 48.02, Upper: 61.95
Estimates of CVg 58.5
Calculated Confidence Intervals of CVg Lower: 44.26, Upper: 81.08
Analytical CV 3.82
Calculated Confidence Intervals of Analytical CV Lower: 3.43, Upper: 4.31
Measurand Mean
Measurand Min
Measurand Max
Measurand SD

Coding