Table 2.
Primary outcome data
| CG transfusion exposures/total pt | NCG transfusion exposures/total pt | P-value | CG mean total units transfused per patienta | NCG mean total units transfused per patienta | P-value | CG postop Hb (g/dL)a |
NCG postop Hb (g/dL)a |
P-value | CG drop in Hb (g/dL)a |
NCG drop in Hb (g/dL)a |
P-value | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Harty et al 2007 [68] | 9.8 | 9.6 | 0.68 | |||||||||
| Johansen et al 2008 [56] | 1.0 | 0.2 | - | 3.7 | 2.4 | 0.01 | ||||||
| Sim and Gonski 2009 [57] CG vs NG |
4/21 | 37/114 | 0.30 | 10.7 (1.7) | 10.3 (1.6) | 0.44 | ||||||
| Sim and Gonski 2009 [57] CG <5 vs CG >5 |
2/16 | 2/5 | >0.05 | 10.3 | 10.9 | >0.05 | ||||||
| Cox et al 2009 [58] | 0.9 | 0.2 | 3.1 | 1.8 | <0.05 | |||||||
| Nydick et al 2010 [53] | 16/23 | 12/27 | 0.13 | 1.50 | 1.77 | 0.54 | ||||||
| Chechik et al 2011 [52] | 1.38 (0.98) | 1.09 (1.38) | >0.05 | |||||||||
| Wallace et al 2012 [63] | 29/52 | 18/58 | 0.01 | 9 (1.9) | 9.5 (1.7) | 0.41 | ||||||
| Collinge et al 2012 [62] | 22/40 | 342/619 | 0.89 | 1.4 (1.7) | 1.5 (2.3) | 0.50 | 10.1 (1.2) | 10.2 (1.2) | 0.52 | |||
| Chechik et al 2012 [59] | 6/30 | 9/30 | 0.38 | 0.37 | 0.47 | 0.64 | 2.6 | 1.8 | 0.19 | |||
| Hossain et al 2013 [61] | 4/50 | 2/52 | 0.37 | 2.0 (0) | 2.5 (0.7) | 0.16 | 10.8 (1.5) | 11.1 (1.5) | 0.37 | |||
| Feely et al 2013 [54] | 9/40 | 14/80 | 0.51 | 2.1 (2.1) | 2.1 (3.5) | 0.49 | 9.1 (1.2) | 9.0 (1.1) | 0.64 | 3.0 (1.7) | 3.5 (1.6) | 0.08 |
| Al Khudairy et al 2013 [60] | 6/24 | 8/23 | >0.05 | 0.8 (1.6) | 0.7 (1.1) | >0.05 | 1.5 | 1.1 | >0.05 | |||
| Wordsworth et al 2013 [55] | 9/30 | 309/1195 | 0.67 | 0.67 | 0.55 | 0.54 | ||||||
| Manaqibwala et al 2014 [64] | 0.9 (1.1) | 0.6 (1.4) | 0.23 | 10.3 (2.2) | 11.4 (1.5) | 0.07 | 0.8 (1.0) | 0.6 (1.3) | 0.32 |
aValues are mean (Standard Deviation)