American Society of Anesthesiologists

Fig. 3.

Risk difference of acute renal failure; random effects (DerSimonian-Laird): Pooled risk difference = 0.000298 (95% CI = −0.018 to 0.019), Chi2 (test risk difference differs from 0) = 0.000992 (df = 1), P = 0.98. No significant risk difference was found. df = degree of freedom.

Risk difference of acute renal failure; random effects (DerSimonian-Laird): Pooled risk difference = 0.000298 (95% CI = −0.018 to 0.019), Chi² (test risk difference differs from 0) = 0.000992 (df = 1), P = 0.98. No significant risk difference was found. df = degree of freedom.

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