Table 3.

Models for Hemoglobin Deferral, Hemoglobin Values, and Ferritin Values

Data source	REDS-II Donation Data				RISE Donation Data
	Hb deferral model (Odds Ratios)		Linear Hb model* (Δg/dL)		Ferritin log-linear model* (% difference)
Intercept (reference value)	0.9%		15.28 g/dL		132 ng/mL
Race/Ethnicity
Race/Ethnicity
Asian vs. White	1.17		−0.07		26%
Black vs. White	2.62		−0.52		0%
Hispanic vs. White	1.39		−0.14		−11%
Other vs. White	1.38		−0.12		0%
Gender
Female vs. Male	16.17		−1.83		−63%
Age (in years)	Male	Female	Male	Female	Male		Female
< 30 vs. 40–49	0.57	1.09	0.35	0.00	−7%		−7%
30–39 vs. 40–49	0.74	1.00	0.14	0.00	−28%		−28%
50–59 vs. 40–49	1.56	0.73	−0.13	0.16	−13%		46%
60 + vs. 40–49	2.96	0.72	−0.32	0.18	−15%		43%
Weight	Male	Female	Male	Female
<150 vs. 150–174	1.38	1.13	−0.07	−0.05	−9%
175–199 vs. 150–174	0.79	0.98	0.08	0.02	2%
200+ vs. 150–174	0.72	1.04	0.13	−0.01	28%
Red Cell Donations in previous 2 years					Male	Female < 50	Female ≥ 50
1–3 donations vs. 0 donations	1.02		−0.03		−12%	−61%	−52%
4–6 donations vs. 0 donations	1.00		−0.09		−50%	−69%	−36%
7–9 donations vs. 0 donations	0.83		−0.14		−60%	−71%	−44%
10+ donations vs. 0 donations	0.59		−0.19		−64%	−72%	−48%
Center
A vs. F	1.60		−0.56		2%
B vs. F	1.87		NA		8%
C vs. F	0.94		0.18		−1%
D vs. F	1.26		0.02		−6%
E vs. F	1.16		0.13		−16%
Double red cell
last DR vs last single	0.79		0.07		−6%
Interval since donation	See Fig 1a–1b		See Fig 1c–1d		See Fig 1e–1f

^*The linear Hb and log-linear ferritin models contribute to the simulation modeling.