Fig. 1.  (A –F ) Relationship between Surgical Apgar Score and the probability of death at day 7, 30, and 90 by specialty. Points  correspond to the estimated probability of death, whereas the vertical bars  correspond to the 95% confidence intervals. Points and bars were omitted if there were less than 10 observations for a given Apgar value, whereas only the bars were omitted if there were at least 10 observations but no deaths.