Figure 8: Proportions of peer reviewed papers on “anesthesia and side effects” (●), “anesthesia and complication (■), “anesthesia and outcome” (▲), and “anesthesia and safety” (□), relative to papers published on anesthesia each year. Year 1 represents for 2004. Gradual significant increase of proportions of peer reviewed manuscripts on “anesthesia and outcome” (R2=0.71 , P=0.0005) and “anesthesia and safety” (R2=0.73 , P=0.00137) is demonstrated.