Analysis 1.1.

Comparison 1 Erythropoietin versus placebo or no treatment, Outcome 1 Use of 1 or more red blood cell transfusions (low and high doses of EPO).

Comparison 1 Erythropoietin versus placebo or no treatment, Outcome 1 Use of 1 or more red blood cell transfusions (low and high doses of EPO).