Table 1 Quality of included studies
Author | Journal | Year | Modified Coleman A score | Modified Coleman B score | Modified Coleman Total score |
|---|---|---|---|---|---|
Park et al. [26] | J Clin Med | 2019 | 27 | 34 | 61 |
Heschl et al. [30] | Eur J Anaesthesiol | 2018 | 20 | 32 | 52 |
Biboulet et al. [22] | Anesthesiology | 2018 | 27 | 37 | 64 |
Bisbe et al. [23] | Br J Anaesth | 2014 | 30 | 37 | 67 |
Muñoz et al. [31] | Blood transfus | 2014 | 20 | 32 | 52 |
Muñoz et al. [32] | Br J Anaesth | 2012 | 20 | 32 | 52 |
Na et al. [25] | Transfusion | 2011 | 30 | 34 | 64 |
Gonzalez-Porras et al. [29] | Transfus Med | 2009 | 27 | 32 | 59 |
Mundy et al. [24] | JBJS | 2005 | 27 | 34 | 61 |
Sutton et al. [27] | JBJS | 2004 | 27 | 34 | 61 |
Weatherall et al. [28] | ANZ J Surg | 2004 | 27 | 34 | 61 |