Ahluwalia N, Lamni-Keefe CL,Haley NR, Beard JL, 1993, Am J Clin Nutr, 57, 414-19 , Day-to-day variation in iron-status indexes in elderly women.


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 C
8. Outlier Analysis C
9. Normality A
10. Variance Homogeneity C
12. CI A
13. No of Results C
14. Concentrations A
15. Total Score C7,8,10,13

Item Details

Parameter Score
Matrix Serum
Measurand Ferritin
Unit ug / L
Overall Analytical Principle Method Immunoassay; ELISA
Number of Subjects 10
Number of Subjects included in BV estimation 10
Ethinicity Unknown
Age Mean / Median
Age Min 70.0
Age Max 79.0
Age SD
Number of Males 0
Number of Females 10
State of Well Being
Healthy (excl pregnant)
Study Duration Length 14
Study Duration Units Day
Sampling Intervals, e.g. X sample(s) per Interval Unit 2
Interval Units Week
Sampling Times Start Time: 09.00
End Time: 12.00
Number of Samples 4
Average Number of Samples Used for BV Estimation 4.0
Average Number of Replicates 2.0
Estimates of CVi 9.7
Calculated Confidence Intervals of CVi Lower: 7.28, Upper: 13.45
Estimates of CVg
Calculated Confidence Intervals of CVg Lower: , Upper:
Analytical CV 5.7
Calculated Confidence Intervals of Analytical CV Lower: 4.68, Upper: 7.29
Measurand Mean 104.0
Measurand Min
Measurand Max
Measurand SD