Skip to main content

Table 4 Transfusion data by group (analysis based on “intention to treat”)

From: Monitoring of brain oxygen saturation (INVOS) in a protocol to direct blood transfusions during cardiac surgery: a prospective randomized clinical trial

  Group A (n = 75) Group B (n = 75) P
In OR    
RBC units transfused 18 40  
Patients transfused 14 (18.6%) 25 (33.3%) 0.040
RBC per transfused pt 1.29 ± 0.47 1.60 ± 0.58 0.090
RBC/pt overall 0.24 ± 0.54 0.53 ± 0.84 0.011
In the ICU and ward    
RBC units transfused 98 98  
Patients transfused 47 (62.6%) 57 (76.0%) 0.076
RBC per transfused pt 2.09 ± 2.05 1.71 ± 1.01 0.239
RBC/pt overall 1.31 ± 1.91 1.31 ± 1.20 1.000
Total    
RBC units transfused 116 138  
Patients transfused 51 (68.0%) 63 (84.0%) 0.021
RBC per transfused pt 2.27 ± 2.01 2.19 ± 1.17 0.781
RBC/pt overall 1.55 ± 1.97 1.84 ± 1.41 0.288