barely significantP < 0.08
Finally, a recent meta-analysis [ 11 ] shows a barely significant decrease in mortality using early initiation of RRT in prospective studies (RR 0.64, 95% CI 0.40 to 1.05; P < 0.08) and a significant decrease in mortality using early initiation of RRT in observational studies (RR 0.72, 95% CI 0.64 to 0.82; P < 0.001).