6. Continous outcome data: total platelet transfusion.

Study	Reported unit	Data available	Intervention results	Control results	P value for difference between groups
Ak 2009	Units	Median (IQR)	1 (1; 1)	1 (1; 2)	0.001
Avidan 2004	‐	‐	‐	‐	‐
Cui 2010	Units	Median (IQR)	1 (1; 1)	1 (0.7‐1.9)	> 0.05
Girdauskas 2010	Units	Median (IQR)	2 (2; 3)	2 (2;3)	0.70
Kempfert 2011	‐	‐	‐	‐	‐
Kultufan Turan 2006		Median (IQR)	0 (0; 4)	0 (0;0)	0.411
Nakayama 2015	mL/kg	Median (IQR)	0 (0; 25)	0 (0;17)	0.28
NCT00772239	‐	‐	‐	‐	‐
Nuttal 2001	Units	Median (range)	6 (0‐18)	6 (0‐144)	0.0001
Paniagua 2011	mL	Mean (SD)	212 (307)	331 (406)	‐
Rauter 2007	‐	‐	‐	‐	‐
Royston 2001	Units	Total	1	9	*
Schaden 2012	Units	Median (range)	0 (0‐0)	0 (0‐2)	0.12
Shore‐Lesserson 1999	mL	Mean (SD)	34 (94)	83 (160)	0.16
Wang 2010	Units	Mean (SD)	27.5 (13.9)	30.1 (18.5)	> 0.05
Weber 2012	Units	Median (IQR)	2 (0; 2)	2 (0; 5)	0.010
Westbrook 2009	Units	Total	5	15	‐

*P value is reported as < 0.05, but seems to be calculated based on units given to each group instead of mean/median, thereby wrongly assuming that each of the units given are independent; ‐ indicates that data were not reported; significant result is highlighted with bold text.
 IQR: interquartile range; SD: standard deviation