1. A reduction in Type and Screen: preoperative prediction of RBC transfusions in surgery procedures with intermediate transfusion risks† 
W.A. van Klei, K.G.M. Moons, A.T. Rheineck Leyssius, J.T.A. Knape, C.L.G. Rutten, D.E. Grobbee 
British Journal of Anaesthesia 
Volume 87, Issue 2, Pages (August 2001)
DOI: /bja/
Copyright © 2001 British Journal of Anaesthesia Terms and Conditions

2. Fig 1
ROC curve of the transformed prediction rule (Table 3). Each bullet indicates a score threshold from 0 (upper-right) to 7 (bottom-left). For example, a score threshold of >2 gives a sensitivity of 0.84 and a specificity of 0.40 (1–0.60).
British Journal of Anaesthesia  , DOI: ( /bja/ )
Copyright © 2001 British Journal of Anaesthesia Terms and Conditions

3. Fig 2
Flow chart of the results of this study after using the scoring rule at a threshold of score >2 and a preoperative haemoglobin concentration of 14.0 g dl−1. #Preoperative haemoglobin concentration. *LAB: patients have to go to the laboratory, and two blood samples have to be taken; one to measure the preoperative Hb and one to investigate eventually the blood group.
British Journal of Anaesthesia  , DOI: ( /bja/ )
Copyright © 2001 British Journal of Anaesthesia Terms and Conditions