Figure 3. Hazard ratio for mortality after 1 year.
Point estimates (circles) with 95% confidence intervals (error bars) for the hazard ratio of mortality in each month after 1 year compared to a baseline hazard calculated for the 90 days period prior to 1 year for the three cohorts: historical control (1995–2000) (red line); pre-LAS (2001–4/2005) (green line); and post-LAS (5/2005–6/2010) (blue line). *denotes significance at p <0.05.