Fig. 4

Incidence of cholestatic liver injury stratified by ketamine infusion. Kaplan–Meier curves for the 30-day incidence of a cholestatic liver injury and b severe cholestatic liver injury stratified by ketamine infusion. Shaded areas represent the crude 95% confidence intervals. The computed hazard ratio assesses the risk of ketamine-infused patients against those not having received it accounting for the competing risk of death. The 95% confidence interval is given in parentheses. Crude and multivariable adjusted hazard ratios are depicted. The underlying table presents the patients at risk per time point