Platelet distribution wide (PDW)

Reference

Reference
Hilderink JM, Kilinkenberg LJJ, Aakre KM, de Wit NCJ, Henskens YMC, van der Linden N et al, 2017, Clin Chem Lab Med, 55, 1013-24 , Within-day biological variation and hour-to-hour reference change values for hematological parameters

Originally from this reference: Clin Chem Lab Med, Hilderink JM, Kilinkenberg LJJ, Aakre KM, de Wit NCJ, Henskens YMC, van der Linden N et al, 2017


ID: 0304

Scoring

Total Score

C7

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 A
9. Normality A
10. Variance Homogeneity A
11. ANOVA A
12. CI A
13. No of Results A
14. Concentrations A
15. Total Score C7
Comment

Item Details

Parameter Score
Matrix Whole Blood EDTA
Measurand Platelet distribution wide (PDW)
Unit fL / _
Overall Analytical Principle Method Flow cytometry - Laser
Number of Subjects 24
Number of Subjects included in BV estimation 18
Ethinicity Unknown
Age Mean / Median 72.0
Age Min 58.0
Age Max 82.0
Age SD
Number of Males 19
Number of Females 5
State of Well Being Healthy (excl pregnant)
Study Duration Length 25
Study Duration Units Hour
Sampling Intervals, e.g. X sample(s) per Interval Unit 1
Interval Units Hour
Sampling Times Start Time:
End Time:
Number of Samples 26
Average Number of Samples Used for BV Estimation 26.0
Average Number of Replicates 2.0
Estimates of CVi 3.7
Calculated Confidence Intervals of CVi Lower: 3.32, Upper: 4.10
Estimates of CVg 14.6
Calculated Confidence Intervals of CVg Lower: 11.02, Upper: 21.61
Analytical CV 3.8
Calculated Confidence Intervals of Analytical CV Lower: 3.57, Upper: 4.06
Measurand Mean 11.6
Measurand Min
Measurand Max
Measurand SD

Coding

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