Parathyroid hormone

Included in meta analysis


Smith ER, Cai MM, McMahon LP and Holt SG, 2012, J Clin Endocrinol Metab, 97, 3357-3365 , Biological variability of plasma intact anc C-terminal FGF23 measurements


Total Score


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 A
10. Variance Homogeneity C
12. CI C
13. No of Results B
14. Concentrations A
15. Total Score C10,12

Item Details

Parameter Score
Matrix Plasma
Measurand Parathyroid hormone
Unit pmol / L
Overall Analytical Principle Method Immunoassay; Not specified
Number of Subjects 12
Number of Subjects included in BV estimation 12
Ethinicity Unknown
Age Mean / Median 45.0
Age Min 25.0
Age Max 62.0
Age SD
Number of Males 8
Number of Females 4
State of Well Being
Healthy (excl pregnant)
Study Duration Length 6
Study Duration Units Week
Sampling Intervals, e.g. X sample(s) per Interval Unit 1
Interval Units Week
Sampling Times Start Time: 08:00
End Time: 10:00
Number of Samples 6
Average Number of Samples Used for BV Estimation 6.0
Average Number of Replicates 2.0
Estimates of CVi 20.2
Calculated Confidence Intervals of CVi Lower: 17.12, Upper: 24.62
Estimates of CVg 21.8
Calculated Confidence Intervals of CVg Lower: 14.43, Upper: 37.58
Analytical CV 2.5
Calculated Confidence Intervals of Analytical CV Lower: 2.15, Upper: 2.99
Measurand Mean 3.7
Measurand Min
Measurand Max
Measurand SD