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. Author manuscript; available in PMC: 2015 Aug 1.
Published in final edited form as: JAMA Intern Med. 2014 Aug;174(8):1405–1407. doi: 10.1001/jamainternmed.2014.2889

Figure 1. Trends in Inpatient RBC Use and Pretransfusion Hemoglobin Levels Across 21 KPNC Facilities.

Figure 1

The number of RBC units transfused per 100 patients and median pretransfusion hemoglobin level decreased following initiation of blood conservation strategies in 2010 (P < .001). To convert hemoglobin to grams per liter, multiply by 10. KPNC indicates Kaiser Permanente Northern California; and RBC, red blood cells.