Research Paper Volume 11, Issue 20 pp 9060—9074
Age-dependent relationship between preoperative serum aminotransferase and mortality after cardiovascular surgery
Figure 2. The adjusted hazard ratio for ALT (A), AST (B) and the De Ritis ratio (C) for postoperative 90-day mortality. Solid lines indicate the hazard ratio according to ALT, AST, and De Ritis ratio splines with medians (19 IU/L for ALT, 22 IU/L for AST and 1.18 for the De Ritis ratio) as a reference. The shaded area represents the 95% confidence interval. Dots indicate the hazard ratio according to ALT, AST, and De Ritis ratio groups. Error bars represent the 95% confidence intervals. SI conversion factors: To convert ALT and AST to μkat/L, multiply values by 0.0167. ALT: alanine aminotransferase; AST: aspartate aminotransferase; CI: confidence interval.