Potassium

Reference

Reference
Fraser CG., Cummings ST., Wilkinson SP., Neville RG., Knox JDE, Ho O and MacWalter RS, 1989, Clin Chem, 35, 783-6 , Biological variability of 26 clinical chemistry analytes in elderly people

Originally from this reference: Clin Chem, Fraser CG., Cummings ST., Wilkinson SP., Neville RG., Knox JDE, Ho O and MacWalter RS, 1989


ID: 0049

Scoring

Total Score

C4,10

Parameter Score
1. Scale A
2. Study Population A
3. Samples A
4. Measurand C
5. Pre-Analytical A
6. Replicate Analysis A
7. Steady State A
8. Outlier Analysis B
9. Normality B
10. Variance Homogeneity C
11. ANOVA A
12. CI A
13. No of Results A
14. Concentrations A
15. Total Score C4,10
Comment

Item Details

Parameter Score
Matrix Serum
Measurand Potassium
Unit mmol / L
Overall Analytical Principle Method Unknown
Number of Subjects 27
Number of Subjects included in BV estimation 27
Ethinicity Unknown
Age Mean / Median
Age Min 70.0
Age Max 83.0
Age SD
Number of Males 14
Number of Females 13
State of Well Being Healthy (excl pregnant)
Study Duration Length 140
Study Duration Units Day
Sampling Intervals, e.g. X sample(s) per Interval Unit 2
Interval Units Month
Sampling Times Start Time: 07:00
End Time: 09:00
Number of Samples 10
Average Number of Samples Used for BV Estimation 10.0
Average Number of Replicates 2.0
Estimates of CVi 4.8
Calculated Confidence Intervals of CVi Lower: 4.37, Upper: 5.31
Estimates of CVg 6.7
Calculated Confidence Intervals of CVg Lower: 5.21, Upper: 9.24
Analytical CV 2.0
Calculated Confidence Intervals of Analytical CV Lower: 1.84, Upper: 2.18
Measurand Mean 4.45
Measurand Min
Measurand Max
Measurand SD

Coding

Parameter Score
Healthy Population true
Adult Population false
Weekly Samplings true
Reviewed true
Published true
Gender for Meta-Analysis Mixed
Snomed CT
NPU
LOINC
Comment