Proposed Changes to Hemoglobin and Donation Interval Criteria for Whole Blood Donors
This document explores the potential impacts of altering hemoglobin (Hb) and donation interval criteria for whole blood donors. Specific changes proposed include raising the minimum Hb level to 13.0 g/dL for men and 12.0 g/dL for women, alongside adjusting the donation interval from 8 weeks to 12 weeks for men and 16 weeks for women. Analysis of past donor data suggests these changes may minimally affect overall collections, but modifications to donation frequency could significantly hinder donor participation and total blood collections.
Proposed Changes to Hemoglobin and Donation Interval Criteria for Whole Blood Donors
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Presentation Transcript
Proposed changes to hemoglobin and donation interval criteria for whole blood donors:Projected impact on current donor base Anne Eder, MD PhD Executive Medical Officer Blood Products Advisory Committee Meeting July 27, 2010
Four Questions • What would be the impact of changing the minimum predonation Hemoglobin (Hb) from 12.5 g/dL… • …to 13.0 g/dL for men? …to 13.5 g/dL for men? 2. …to 12.0 g/dL for women? • What would be the impact of changing the interdonation interval from 8 weeks (about 6-7 times per year) ….. • ….to 12 weeks (about 4-5 times per year) for men? • ….to 16 weeks (about 3-4 times per year) for women?
American Red Cross, 2010 Annual Data – (Denominator) 6 M Red Cells 1.7 M Plasma Products 850,000 Apheresis Platelets 250,000 WB-derived Platelets 40,000 Pooled Platelets Puerto Rico
Hb Distribution, Presenting Donors Male Female NHLBI Retrovirus Epidemiology Donor Study-II (REDS-II) New England Region, ARC, 2008-2009
Question 1: Minimum Hb for Men • Hb 12.5 →13.0 g/dL for men • Hb 12.5 →13.5 g/dL for men *NHLBI Retrovirus Epidemiology Donor Study-II (REDS-II) New England Region, ARC, 2008-2009
Question 2: Minimum Hb for Women • Hb 12.5 →12.0 g/dL for women *NHLBI Retrovirus Epidemiology Donor Study-II (REDS-II) New England Region, ARC, 2008-2009
Questions 3 & 4: Frequency American Red Cross, Cohort of CY2008 whole blood donors followed for 365 days (6,466,231 donations)
Questions 3 & 4: Frequency *Based on fractional estimates for frequency: 4.33 for men; 3.25 for women American Red Cross, Cohort of CY2008 whole blood donors followed for 365 days (6,466,231 donations)
Conclusions • In the ARC system, changing the minimum hemoglobin requirement to13.0 g/dL for men and 12.0 g/dL for women is predicted to have little effect on total collections • Changing the donation interval is predicted to have a significant, detrimental effect on collections
Donation Frequency – Cohort • Day 1 Donation 1 • Day 57 Donation 2 • Day 113 Donation 3 • Day 169 Donation 4 • Day 225 Donation 5 • Day 281 Donation 6 • Day 337 Donation 7 • And 28 days left until New Years.
Model Donation Interval Original Interval 0 56 d 56 d 56 d 56 d 56 d = 6 donations New Interval 0 112 d 112 d = 3 donations