Reference
Nixon RG, Wener MH et al, 1997, J Urol, 157, 2183-90 , Biological variation of prostate specific antigen levels In serum: an evaluation of day-to-day physiological fluctuations in a well-defined cohort of 24 patients
Originally from this reference: J Urol, Nixon RG, Wener MH et al, 1997
ID: 0354
| Parameter | Score |
|---|---|
| 1. Scale | A |
| 2. Study Population | A |
| 3. Samples | B |
| 4. Measurand | A |
| 5. Pre-Analytical | A |
| 6. Replicate Analysis | B |
| 7. Steady State | C |
| 8. Outlier Analysis | C |
| 9. Normality | B |
| 10. Variance Homogeneity | C |
| 11. ANOVA | C |
| 12. CI | A |
| 13. No of Results | C |
| 14. Concentrations | A |
| 15. Total Score | C7,8,10,11,13 |
| Comment |
| Parameter | Score |
|---|---|
| Matrix | Serum |
| Measurand | Prostate specific antigen (PSA) |
| Unit | ng / mL |
| Overall Analytical Principle Method | Immunoassay; Not specified |
| Number of Subjects | 7 |
| Number of Subjects included in BV estimation | 7 |
| Ethinicity | Unknown |
| Age Mean / Median | 75.1 |
| Age Min | |
| Age Max | |
| Age SD | |
| Number of Males | 7 |
| Number of Females | 0 |
| State of Well Being | Healthy (excl pregnant) |
| Study Duration Length | 2 |
| Study Duration Units | Week |
| Sampling Intervals, e.g. X sample(s) per Interval Unit | 1 |
| Interval Units | Day |
| Sampling Times | Start Time:
End Time: |
| Number of Samples | 10 |
| Average Number of Samples Used for BV Estimation | 9.8 |
| Average Number of Replicates | 2.0 |
| Estimates of CVi | 10.1 |
| Calculated Confidence Intervals of CVi | Lower: 8.35, Upper: 12.52 |
| Estimates of CVg | |
| Calculated Confidence Intervals of CVg | Lower: , Upper: |
| Analytical CV | 5.0 |
| Calculated Confidence Intervals of Analytical CV | Lower: 4.26, Upper: 6.06 |
| Measurand Mean | 5.6 |
| Measurand Min | |
| Measurand Max | |
| Measurand SD |