1 Supplementary Table 1: Studies and their full citations for the articles included in the meta-analysis First Author* Year No. No. AML CSF Control Type CSF Type Day CSF Initiation+ Elderly++ Buchner(1) 1993 36 31 de novo GM-CSF -1 Yes Ohno(2) 1994 28 30 rel G-CSF -2 Yes Rottmann(3) 1994 40 32 de novo GM-CSF -1 Yes Hansen(4) 1995 10 8 de novo, rel GM-CSF -1 Yes Heil(5) 1995 41 39 de novo GM-CSF -2 Yes Zittoun(6) 1996 50 53 de novo GM-CSF -1 No Lowenberg(7) 1997 138 136 de novo GM-CSF -1 NA Lowenberg(8) 1997 157 161 de novo, 2° GM-CSF -1 Yes Witz(9) 1998 114 126 de novo GM-CSF 0 Yes Estey(10) 1999 107 108 de novo, rel, 2° G-CSF -1 Yes Hast(11) 2003 46 47 2° GM-CSF -2 Yes Lowenberg(12) 2003 321 319 de novo, 2° G-CSF -1 No Buchner(13) 2004 466 429 NA G-CSF -2 Yes Bug(14) 2006 91 92 de novo, 2° G-CSF -1 Yes Lofgren(15) 2004 55 55 de novo GM-CSF -1 Yes Rowe(16) 2004 113 125 de novo GM-CSF -2 Yes Amadori (17) 2005 360 362 de novo, 2° G-CSF 0 Yes Milligan(18) 2006 178 178 de novo, rel, 2° G-CSF 0 Yes Thomas(19) 2007 124 135 de novo GM-CSF 0 No Abbreviations: AML – acute myeloid leukemia; rel - relapsed; 2° - secondary; G-CSF – granulocyte colonystimulating factor; GM-CSF – granulocyte-macrophage colony-stimulating factor, CSF – colony-stimulating factor; NA – not available * Reference number in the bibliography; + Number of days prior to initiation of chemotherapy; ++ Indicates whether elderly patients were included in the trial 2 Appendix References: 1. Buchner T, Hiddemann W, Wormann B, Rottmann R, Maschmeyer G, Ludwig WD, et al. The role of GM-CSF in the treatment of acute myeloid leukemia. Leukemia & lymphoma 1993; 11 Suppl 2: 21-24. 2. Ohno R, Naoe T, Kanamaru A, Yoshida M, Hiraoka A, Kobayashi T, et al. A double- blind controlled study of granulocyte colony-stimulating factor started two days before induction chemotherapy in refractory acute myeloid leukemia. Kohseisho Leukemia Study Group. Blood 1994 Apr 15; 83(8): 2086-2092. 3. Rottmann R, Buchner T, Hiddemann W, Wormann B, Maschmeyer G, Ludwig WD, et al. GM-CSF Multiple Course Priming and Long-Term Administration in Newly Diagnosed Acute Myeloid Leukemia: Comparison of Three Different GM-CSF Routes and Schedules with No GM-CSF. Onkologie 1994; (17): 58-61. 4. Hansen PB, Johnsen HE, Jensen L, Gaarsdal E, Simonsen K, Ralfkiaer E. 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Buchner T, Berdel WE, Hiddemann W. Priming with granulocyte colony-stimulating factor--relation to high-dose cytarabine in acute myeloid leukemia. The New England journal of medicine 2004 May 20; 350(21): 2215-2216. 14. Bug G, Koschmieder S, Krauter J, Wiebe S, Hannig C, Hofmann W-K, et al. Priming with Granulocyte-Colony Stimulating Factor Did Not Improve Outcome in a Randomized Study of Elderly Acute Myeloid Leukemia but Increased Induction Mortality. ASH Annual Meeting Abstracts 2006 November 16, 2006; 108(11): 1980-. 15. Lofgren C, Paul C, Astrom M, Hast R, Hedenius M, Lerner R, et al. Granulocyte- macrophage colony-stimulating factor to increase efficacy of mitoxantrone, etoposide and cytarabine in previously untreated elderly patients with acute myeloid leukaemia: a Swedish multicentre randomized trial. British journal of haematology 2004 Feb; 124(4): 474-480. 16. Rowe JM, Neuberg D, Friedenberg W, Bennett JM, Paietta E, Makary AZ, et al. A phase 3 study of three induction regimens and of priming with GM-CSF in older adults with acute myeloid leukemia: a trial by the Eastern Cooperative Oncology Group. Blood 2004 Jan 15; 103(2): 479-485. 17. Amadori S, Suciu S, Jehn U, Stasi R, Thomas X, Marie JP, et al. Use of glycosylated recombinant human G-CSF (lenograstim) during and/or after induction chemotherapy in patients 5 61 years of age and older with acute myeloid leukemia: final results of AML-13, a randomized phase-3 study. Blood 2005 Jul 1; 106(1): 27-34. 18. Milligan DW, Wheatley K, Littlewood T, Craig JI, Burnett AK. Fludarabine and cytosine are less effective than standard ADE chemotherapy in high-risk acute myeloid leukemia, and addition of G-CSF and ATRA are not beneficial: results of the MRC AML-HR randomized trial. Blood 2006 Jun 15; 107(12): 4614-4622. 19. Thomas X, Raffoux E, Botton S, Pautas C, Arnaud P, de Revel T, et al. 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