Blood/red cells transfused (skewed or inadequate data)
Study	Notes
Evans 2003	No data on amount of units transfused. Author reports that there was no significant difference in the median total blood loss between the groups (P = 0.5587)
Niemi 2006	The mean and standard deviation (SD) of RBC units transfused was given. HA mean 0.2 (SD 0.6), Gel mean 0.2 (SD 0.4)
Stockwell 1992	The volume of blood products given was recorded as a mean with the range also given. In the albumin group the mean was 1.45 L (range 0‐29) and in the haemacell group the mean was 1.39 L (range 0 L to 66 L) (P = 0.65, Mann‐Whitney U test)
Tollofsrud 1995	The amount of erthrocytes given was recorded as a mean and SD. In the albumin group the mean was 240 (SD 310), and in the polygeline group the mean was 490 (SD 548)