These results could have been similar in terms of absolute risks to the findings of Urwin et al., 3,12 who reported marginal advantage in favour of RA in their metanalysis, having less early mortality one month.
Estos resultados pudieran ser similares en términos de riesgos absolutos a los hallazgos de Urwin et al. 3,12 quienes en su metanálisis reportaron una ventaja marginal a favor de la anestesia regional con menor mortalidad temprana un mes.