Table 4:

Hemoglobin increments and subsequent transfusion events after single unit RBC transfusion from donors on testosterone therapy (TT) and controls.

Donor group	Hgb increments g/dL [95% CI]	48-hour RBC transfusion event Odds ratio [95% CI]	# of RBC transfusions within 48 hours [95% CI]
Controls (n=2,397)	1.03 [1.00, 1.06]	[Ref]	0.61 [0.60–0.62]
TT (n=32)	0.75 [0.47,1.03]1	1.80 [1.04,3.12]2	1.22 [0.79–1.66]3

RBC, red blood cell; TT, testosterone therapy;

CI=confidence interval.

¹p=0.048.

²p=0.035.

³p=0.006