. Author manuscript; available in PMC: 2020 May 1.

Published in final edited form as: Transfusion. 2019 Jan 11;59(5):1706–1716. doi: 10.1111/trf.15133

Table 2A:

Low hemoglobin deferral rate in female donors by count of units donated over trailing 24 months

	Number of units of red cells donated over prior 24 months
	1 unit	2 units	3 units	4 units	≥ 5 units
16 yo	11.3% (238)	17.0% (88)	33.3% (21)	NS^*	NS^*
17 yo	12.8% (665)	17.2% (348)	18.8% (128)	9.5% (42)	12.0% (25)
18 yo	9.0% (67)	13.5% (52)	15.2% (33)	NS^*	NS^*
19 – 49 yo	5.9% (101)	8.2% (85)	8.8% (68)	4.0% (50)	5.0% (80)

Rate of deferral for low hemoglobin estimated as (Number of low hemoglobin deferrals)/(Number of donor presentations to donate). Shown as deferral rate % (N donor presentations).

NS: Not shown (fewer than 20 donor visits at that combination of donation frequency and age).