. Author manuscript; available in PMC: 2016 Jan 19.

Published in final edited form as: Cochrane Database Syst Rev. 2015 Nov 18;11:CD010983. doi: 10.1002/14651858.CD010983.pub2

Table 3. Number of platelet transfusions and number of platelet units.

Study	Intervention	Number of participants in each arm	Number of platelet transfusions/participant	Comparison statistics	P value	Number of platelet units transfused/participant	Comparison statistics	P value
Short-term follow-up (up to 30 days)
Diedrich 2005	< 10 × 10⁹/L	79	Median 4; range 0 to 32	Not reported	< 0.001	Not reported	Not reported	Not reported
Diedrich 2005	< 30 × 10⁹/L	87	Median 10; range 0 to 48	Not reported	< 0.001	Not reported	Not reported	Not reported
Heckman 1997	≤ 10 × 10⁹/L	37	Mean 8.4 ± SD 5.3^*	MD −3.00, 95% CI −5.76 to −0.24^*	Not reported	Not reported	Not reported	Not reported
Heckman 1997	≤ 20 × 10⁹/L	41	Mean 11.4 ± SD 7.1^*	MD −3.00, 95% CI −5.76 to −0.24^*	Not reported	Not reported	Not reported	Not reported
Rebulla 1997	< 10 × 10⁹/L	135	Mean 7.05 ± SD 4.56	MD −1.92, 95% CI −3.12 to −0.72	0.001	Not reported	Not reported	Not reported
Rebulla 1997	< 20 × 10⁹/L	120	Mean 8.97 ± SD 5.17	MD −1.92, 95% CI −3.12 to −0.72	0.001	Not reported	Not reported	Not reported

unpublished data provided by the author. The paper provided medians and ranges median 7 (5 to 11) for the standard-trigger arm and median 11 (6 to 15) for the higher-trigger arm.

CI = confidence interval

MD = mean difference

SD = standard deviation